VERISIGN INC/CA
S-1/A, 1999-01-19
COMPUTER PROGRAMMING SERVICES
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<PAGE>
 
    
 As filed with the Securities and Exchange Commission on January 19, 1999     
                                                   
                                                Registration No. 333-70121     
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
                      SECURITIES AND EXCHANGE COMMISSION
                             Washington, DC 20549
 
                                ---------------
                                
                             AMENDMENT NO. 1     
                                       
                                    to     
                                   FORM S-1
                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933
 
                                ---------------
 
                                VERISIGN, INC.
            (Exact Name of Registrant as Specified in Its Charter)
 
<TABLE>
 <S>                               <C>                                    <C>
            Delaware                                7371                            94-3221585
 (State or Other Jurisdiction of        (Primary Standard Industrial             (I.R.S. Employer
 Incorporation or Organization)         Classification Code Number)            Identification Number)
</TABLE>
 
                                ---------------
 
                              1390 Shorebird Way
                     Mountain View, California 94043-1338
                                (650) 961-7500
  (Address, Including Zip Code, and Telephone Number, Including Area Code, of
                   Registrant's Principal Executive Offices)
 
                                ---------------
 
                                 Dana L. Evan
                            Chief Financial Officer
                                VeriSign, Inc.
                              1390 Shorebird Way
                     Mountain View, California 94043-1338
                                (650) 961-7500
(Name, Address, Including Zip Code, and Telephone Number, Including Area Code,
                             of Agent For Service)
 
                                ---------------
 
                                  Copies to:
 
<TABLE>
<S>                             <C>                                    <C>
   Laird H. Simons III, Esq.           Timothy Tomlinson, Esq.               Robert P. Latta, Esq.
    Jeffrey R. Vetter, Esq.      Tomlinson Zisko Morosoli & Maser LLP        Chris F. Fennell, Esq.
    Tyler R. Cozzens, Esq.                200 Page Mill Road                Chris E. Montegut, Esq.
   R. Gregory Roussel, Esq.                  Second Floor                    Priya S. Cherian, Esq.
      Fenwick & West LLP           Palo Alto, California 94306-2022    Wilson Sonsini Goodrich & Rosati,
     Two Palo Alto Square                   (650) 325-8666                  Professional Corporation
     Palo Alto, California                                                      650 Page Mill Road     
          94306-2105                                                    Palo Alto, California 94304-1050 
        (650) 494-0600                                                           (650) 493-9300          
                                                                                                        
</TABLE>
 
  Approximate date of commencement of proposed sale to the public: As soon as
practicable after the effective date of this Registration Statement.
  If any of the securities being registered on this form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, check the following box. [_]
  If this form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, check the following box and
list the Securities Act registration statement number of the earlier effective
registration statement for the same offering. [_] _________________
  If this form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [_] _________________
  If this form is a post-effective amendment filed pursuant to Rule 462(d)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering.  [_] _________________
  If delivery of the prospectus is expected to be made pursuant to Rule 434,
check the following box. [_]
 
                                ---------------
       
  The Registrant hereby amends this Registration Statement on such date or
dates as may be necessary to delay its effective date until the Registrant
shall file a further amendment which specifically states that this
Registration Statement shall thereafter become effective in accordance with
Section 8(a) of the Securities Act of 1933 or until the Registration Statement
shall become effective on such date as the Commission, acting pursuant to said
Section 8(a), may determine.
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>
 
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+The information in this prospectus is not complete and may be changed. We may +
+not sell these securities until the registration statement filed with the     +
+Securities and Exchange Commission is effective. This prospectus is not an    +
+offer to sell these securities and we are not soliciting offers to buy these  +
+securities in any state where the offer or sale is not permitted.             +
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 
PROSPECTUS (Subject to Completion)
   
Issued January 19, 1999     
 
                                2,400,000 Shares
 
                               [LOGO OF VERISIGN]
 
                                  COMMON STOCK
 
                                  -----------
      
   VeriSign, Inc. is offering 835,000 shares and the selling stockholders are
                        offering 1,565,000 shares.     
 
                                  -----------
      
   VeriSign's common stock is listed on the Nasdaq National Market under the
    symbol "VRSN." On January 13, 1999, the reported last sale price of the
     common stock on the Nasdaq National Market was $66 1/4 per share.     
 
                                  -----------
 
                 Investing in the common stock involves risks.
                     
                  See "Risk Factors" beginning on page 6.     
 
                                  -----------
 
                               PRICE $   A SHARE
 
                                  -----------
 
<TABLE>
<CAPTION>
                                Underwriting                         Proceeds to
                Price to        Discounts and      Proceeds to         Selling
                 Public          Commissions         Company        Stockholders
                --------        -------------      -----------      ------------
<S>         <C>               <C>               <C>               <C>
Per
 Share....       $                  $                $                  $
Total(3)..      $                 $                 $                  $
</TABLE>
 
The Securities and Exchange Commission and state securities regulators have not
approved or disapproved these securities, or determined if this prospectus is
truthful or complete. Any representation to the contrary is a criminal offense.
 
VeriSign has granted the underwriters the right to purchase up to an additional
360,000 shares of common stock to cover over-allotments. Morgan Stanley & Co.
Incorporated expects to deliver the shares to purchasers on     , 1999.
 
                                  -----------
 
MORGAN STANLEY DEAN WITTER
      HAMBRECHT & QUIST
               DAIN RAUSCHER WESSELS
               a division of Dain Rauscher Incorporated
                                                   BANCBOSTON ROBERTSON STEPHENS
January   , 1999
<PAGE>
 
  You should rely only on the information contained in this prospectus. We
have not authorized anyone to provide you with information different from that
contained in this prospectus. We are offering to sell shares of common stock
and seeking offers to buy shares of common stock only in jurisdictions where
offers and sales are permitted. The information contained in this prospectus
is accurate only as of the date of this prospectus, regardless of the time of
delivery of this prospectus or any sale of the common stock.
 
                               ----------------
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                      Page
                                      ----
<S>                                   <C>
Prospectus Summary..................    3
VeriSign, Inc.......................    5
Risk Factors........................    6
Use of Proceeds.....................   17
Dividend Policy.....................   17
Price Range of Common Stock.........   17
Capitalization......................   18
Dilution............................   19
Selected Consolidated Financial
 Data...............................   20
Management's Discussion and Analysis
 of Financial Condition and Results
 of Operations......................   21
</TABLE>
<TABLE>
<CAPTION>
                                   Page
                                   ----
<S>                                <C>
Business.........................   32
Management.......................   49
Certain Transactions.............   58
Principal and Selling
 Stockholders....................   62
Description of Capital Stock.....   65
Shares Eligible for Future Sale..   68
Underwriters.....................   69
Legal Matters....................   71
Experts..........................   71
Additional Information...........   71
Available Information............   71
Index to Consolidated Financial
 Statements......................  F-1
</TABLE>
 
                               ----------------
 
  VeriSign(TM) is a trademark exclusively licensed to VeriSign, and
SecureITSM, Digital IDSM, Digital ID CenterSM, EDI Server IDSM, Financial
Server IDSM, Global Server IDSM, NetSureSM, Secure Server IDSM, VeriSign
OnSiteSM, VeriSign SETSM, VeriSign Trust NetworkSM and WorldTrustSM are
service marks of VeriSign. This prospectus also includes trademarks of
companies other than VeriSign.
 
 
  Unless the context otherwise requires, the term "VeriSign" refers to
VeriSign, Inc., a Delaware corporation, and its subsidiaries. On July 6, 1998,
VeriSign acquired SecureIT, Inc. in a transaction accounted for as a pooling-
of-interests. Accordingly, all financial information contained in this
prospectus has been restated to include the operating results, financial
position and cash flows of SecureIT as if it had always been a part of
VeriSign. Except as otherwise noted herein, information in this prospectus
assumes no exercise of the underwriters' over-allotment option.
 
 
 
                                       2
<PAGE>
 
                               PROSPECTUS SUMMARY
 
  The following summary is qualified in its entirety by the more detailed
information and the Consolidated Financial Statements and notes thereto
appearing elsewhere in this prospectus.
 
                                 VERISIGN, INC.
 
  VeriSign is the leading provider of Internet-based trust services needed by
websites, enterprises and individuals to conduct trusted and secure electronic
commerce and communications over the Internet, intranets and extranets. We have
established strategic relationships with industry leaders, including AT&T,
British Telecommunications, or BT, Cisco, Microsoft, Netscape, Network
Associates, RSA, Security Dynamics and VISA, to enable widespread utilization
of our digital certificate services and to assure their interoperability with a
wide variety of applications and network equipment. We have used our secure
online infrastructure to issue over 100,000 of our website digital certificates
and over 3.5 million of our digital certificates for individuals. We believe
that we have issued more digital certificates than any other company in the
world. Our Website Digital Certificate services are used by over 400 of the
Fortune 500 companies. We also offer the VeriSign OnSite service, which allows
an organization to leverage our trusted service infrastructure to develop and
deploy customized digital certificate services for use by its employees,
customers and business partners. Over 300 enterprises have subscribed to the
OnSite service since its introduction in November 1997, including Bank of
America, Hewlett-Packard, the Internal Revenue Service, Kodak, Sumitomo Bank,
Texas Instruments and USWest. We market our Internet-based trust services
worldwide through multiple distribution channels, including the Internet,
direct sales, telesales, value-added resellers, or VARs, systems integrators
and our affiliates, and intend to expand these distribution channels.
 
  VeriSign was incorporated in Delaware in April 1995. Our executive offices
are located at 1390 Shorebird Way, Mountain View, California 94043-1338. Our
telephone number at this location is (650) 961-7500. Our website is located at
http://www.verisign.com. Information contained in our website is not part of
this prospectus.
 
                                  THE OFFERING
 
<TABLE>   
 <C>                                            <S>
 Common stock offered by VeriSign.............  835,000 shares
 Common stock offered by the Selling
  Stockholders................................  1,565,000 shares
 Common stock to be outstanding after the
  offering....................................  23,910,359 shares(1)
 Over-allotment option........................  360,000 shares
 Use of proceeds..............................  For working capital and other
                                                general corporate purposes. See
                                                "Use of Proceeds."
 Dividend policy..............................  We do not anticipate paying any
                                                cash dividends in the
                                                foreseeable future.
 Nasdaq National Market symbol................  VRSN
</TABLE>    
- --------
(1) Based on the number of shares outstanding as of December 31, 1998. This
    number does not include 4,129,444 shares issuable upon the exercise of
    options then outstanding, with a weighted average exercise price of $19.55
    per share, and 711,596 shares reserved for issuance under VeriSign's stock
    plans. It also does not include 17,500 shares subject to a warrant that
    would be issued in the event that VeriSign borrows funds under an equipment
    loan agreement and 15,000 shares that would be issued to a service provider
    if certain milestones are met. See "Capitalization," "Management--Director
    Compensation," "--Employee Benefit Plans" and Notes 6 and 8 of Notes to
    Consolidated Financial Statements.
 
                                       3
<PAGE>
 
 
                      SUMMARY CONSOLIDATED FINANCIAL DATA
                     (In thousands, except per share data)
 
<TABLE>
<CAPTION>
                           Period from
                          April 12, 1995    Year Ended       Nine Months Ended
                          (Inception) to   December 31,        September 30,
                           December 31,  ------------------  ------------------
                               1995        1996      1997      1997      1998
                          -------------- --------  --------  --------  --------
<S>                       <C>            <C>       <C>       <C>       <C>
Consolidated Statement
 of Operations Data:
Revenues................     $   382     $  1,356  $ 13,356  $  8,360  $ 25,719
Total costs and ex-
 penses.................       2,524       12,415    34,657    22,694    45,555
Operating loss..........      (2,142)     (11,059)  (21,301)  (14,334)  (19,836)
Net loss................      (1,994)     (10,288)  (18,589)  (12,268)  (17,209)
Basic and diluted net
 loss per share(1)......     $  (.43)    $  (2.07) $  (2.61) $  (1.54) $   (.82)
Shares used in per share
 computation(1).........       4,689        4,960     7,121     7,988    21,042
</TABLE>
 
<TABLE>   
<CAPTION>
                                                           September 30, 1998
                                                         ----------------------
                                                         Actual  As Adjusted(2)
                                                         ------- --------------
<S>                                                      <C>     <C>
Consolidated Balance Sheet Data:
Cash, cash equivalents and short-term investments....... $42,468    $ 94,333
Total assets............................................  63,643     115,508
Stockholders' equity....................................  42,356      94,221
</TABLE>    
 
- --------
Notes:
(1) See Note 1 of Notes to Consolidated Financial Statements for an explanation
    of the determination of the number of shares used in the per share
    computation.
   
(2) As adjusted to reflect the sale of the common stock offered by VeriSign, at
    an assumed public offering price of $66.25 per share, after deducting
    underwriting discounts and commissions and estimated offering expenses
    payable by VeriSign. See "Use of Proceeds" and "Capitalization."     
                               
                            RECENT DEVELOPMENT     
          
  On January 19, 1999, VeriSign announced selected consolidated results of
operations for the fourth quarter of 1998 and for the year ended December 31,
1998, as set forth in the following table.     
 
<TABLE>   
<CAPTION>
                                     Three Months Ended       Year Ended
                                        December 31,         December 31,
                                     --------------------  ------------------
                                       1997       1998       1997      1998
                                     ---------  ---------  --------  --------
                                     (In thousands, except per share data)
<S>                                  <C>        <C>        <C>       <C>
Revenues............................   $ 4,996  $  13,211  $ 13,356  $ 38,930
Net loss............................    (6,321)    (2,534)  (18,589)  (19,743)
Basic and diluted net loss per
 share.............................. $    (.82) $    (.11) $  (2.61) $   (.95)
Shares used in per share
 computation........................     7,690     22,393     7,121    20,873
</TABLE>    
 
                                       4
<PAGE>
 
                                VERISIGN, INC.
 
  VeriSign is the leading provider of Internet-based trust services needed by
websites, enterprises and individuals to conduct trusted and secure electronic
commerce and communications over the Internet, intranets and extranets, which
we refer to as IP networks. A digital certificate functions as an electronic
credential in the digital world. It identifies the certificate owner,
authenticates the certificate owner's membership in a given organization or
community or establishes the certificate owner's authority to engage in a
given transaction. By performing these functions, it creates a framework for
trusted interaction over IP networks. We have established strategic
relationships with industry leaders, including AT&T, BT, Cisco, Microsoft,
Netscape, Network Associates, RSA, Security Dynamics and VISA, to enable
widespread utilization of our digital certificate services and to assure their
interoperability with a wide variety of applications and network equipment. We
have used our secure online infrastructure to issue over 100,000 of our
website digital certificates and over 3.5 million of our digital certificates
for individuals. We believe that we have issued more digital certificates than
any other company in the world. Our Website Digital Certificate services are
used by over 400 of the Fortune 500 companies. We also offer the VeriSign
OnSite service, which allows an organization to leverage our trusted service
infrastructure to develop and deploy customized digital certificate services
for use by its employees, customers and business partners. Over 300
enterprises have subscribed to the OnSite service since its introduction in
November 1997, including Bank of America, Hewlett-Packard, the Internal
Revenue Service, Kodak, Sumitomo Bank, Texas Instruments and USWest.
 
  Over the last three years, the Internet has become a widely-accepted
platform for many consumer-oriented transactions such as retail purchases,
auctions, online banking and brokerage for companies such as Amazon.com, Bank
of America, Cisco, Dell, eBay, E*Trade and Charles Schwab. International Data
Corporation (IDC) estimates that the number of Internet users will grow from
97 million in 1998 to 320 million by 2002 with commensurate growth in
electronic commerce from $32 billion to $426 billion over that same period. In
order for electronic commerce to continue this growth, the Internet needs a
cost-effective solution that can give consumers the same sense of trust that
they have in conducting commerce in the physical world. In a manner similar to
use of physical credentials, this solution must irrefutably verify the
identity of a business over the Internet and ensure that the information being
transmitted between the consumer and the business is kept private. Digital
certificates can provide these authentication and privacy capabilities for
consumers and businesses conducting commerce over the Internet. Businesses
have also begun to use IP networks for advanced interactions with their
employees, business partners and customers. As a result, there is a need to
use digital certificates as electronic credentials to verify the identity,
authority and privileges of those individuals and entities before allowing
them to access confidential information or transact new business. Digital
certificates are issued and managed by entities known as Certification
Authorities, or CAs. The level of trust that can be associated with a digital
certificate is ultimately tied to the technology, infrastructure and practices
used by the CA to prepare, issue and manage the digital certificate over its
lifecycle. For organizations that need to support large quantities of digital
certificates, doing so themselves can be extremely expensive, requiring
substantial human resources and taking years and millions of dollars to
implement. The ideal solution would be a complete CA service offering that
could provide businesses with a scalable and reliable CA utility to support
all of their digital certificate needs including website, intranet, extranet,
virtual private network, or VPN, and electronic commerce authentication.
 
  VeriSign has invested significant resources to develop a highly reliable and
secure operations infrastructure, a modular software platform and a
comprehensive set of security and trust practices to enable trusted and secure
electronic commerce and communications over IP networks using digital
certificates. Our modular WorldTrust software platform, which serves as the
foundation for our Internet-based trust services, automates many aspects of
digital certificate issuance and lifecycle management and provides the
scalability necessary to deploy and manage millions of digital certificates
for distinct communities ranging from individual corporations to the entire
population of Internet users.
 
  VeriSign's objective is to enable secure electronic commerce and
communications through its online trust services infrastructure. Our strategy
to achieve this objective includes leveraging our leadership position to drive
market penetration, leveraging and expanding strategic relationships with
industry leaders, maintaining leadership in technology, infrastructure and
practices, continuing to build the VeriSign brand and expanding our global
marketing and distribution. We market our Internet-based trust services
worldwide through multiple distribution channels, including the Internet,
direct sales, telesales, VARs, systems integrators and our affiliates. We
intend to continue to expand these distribution channels.
 
                                       5
<PAGE>
 
                                 RISK FACTORS
 
  You should carefully consider the risks and uncertainties described below
before making an investment decision. These risks and uncertainties are not
the only ones facing VeriSign. Additional risks and uncertainties not
presently known to us or that we currently deem immaterial may also impair our
business operations.
 
  If any of the following risks actually occur, our business, financial
condition or operating results could be materially harmed. In such case, the
trading price of our common stock could decline and you may lose all or part
of your investment.
 
  This prospectus also contains forward-looking statements that involve risks
and uncertainties. Our actual results could differ materially from those
anticipated in these forward-looking statements as a result of certain factors
including the risks faced by us described below and elsewhere in this
prospectus.
 
We Have a Limited Operating History
 
  VeriSign was incorporated in April 1995, and we began introducing our
Internet-based trust services in June 1995. Accordingly, we have only a
limited operating history on which to base an evaluation of our business and
prospects. Our prospects must be considered in light of the risks and
uncertainties encountered by companies in the early stages of development.
These risks and uncertainties are often worse for companies in new and rapidly
evolving markets. Our success will depend on many factors, including, but not
limited to, the following:
 
  .  the rate and timing of the growth and use of IP networks, for electronic
     commerce and communications;
 
  .  the extent to which digital certificates are used for such
     communications and commerce;
 
  .  the continued evolution of electronic commerce as a viable means of
     conducting business;
 
  .  the demand for our Internet-based trust services;
 
  .  competition levels;
 
  .  the perceived security of electronic commerce and communications over IP
     networks;
 
  .  the perceived security of our services, technology, infrastructure and
     practices; and
 
  .  our continued ability to maintain our current, and enter into
     additional, strategic relationships.
 
  To address these risks we must, among other things:
 
  .  successfully market our Internet-based trust services and our digital
     certificates to our new and existing customers;
 
  .  attract, integrate, train, retain and motivate qualified personnel;
 
  .  respond to competitive developments;
 
  .  successfully introduce new Internet-based trust services; and
 
  .  successfully introduce enhancements to our existing Internet-based trust
     services to address new technologies and standards.
 
  We cannot be certain that we will successfully address any of these risks.
 
We Have a History of Losses and Anticipate Future Losses
 
  We have experienced substantial net losses in each fiscal period since we
were formed. As of September 30, 1998, we had an accumulated deficit of
$48.3 million. VeriSign's limited operating history, the emerging nature
 
                                       6
<PAGE>
 
of its market and the factors described under "--Our Business Depends on the
Adoption of IP Networks" and "--Our Quarterly Operating Results May Fluctuate;
Our Future Revenues and Profitability Are Uncertain," among other factors,
make prediction of our future operating results difficult. In addition, we
intend to increase our expenditures in all areas in order to execute our
business plan. As a result, we expect to incur substantial additional losses.
Although our revenues have grown in recent periods, we may be unable to
sustain such growth. Therefore, you should not consider our historical growth
indicative of future revenue levels or operating results. We may never achieve
profitability. Even if we do, we may not be able to sustain it. See
"Management's Discussion and Analysis of Financial Condition and Results of
Operations" and "Business--Strategy."
 
Our Business Depends on the Adoption of IP Networks
 
  In order for VeriSign to be successful, IP networks must be widely adopted,
in a timely manner, as a means of trusted and secure electronic commerce and
communications. Because electronic commerce and communications over IP
networks are new and evolving, it is difficult to predict the size of this
market and its sustainable growth rate. To date, many businesses and consumers
have been deterred from utilizing IP networks for a number of reasons,
including, but not limited to:
 
  .  potentially inadequate development of network infrastructure;
 
  .  security concerns including the potential for merchant or user
     impersonation and fraud or theft of stored data and information
     communicated over IP networks;
 
  .  inconsistent quality of service;
 
  .  lack of availability of cost-effective, high-speed service;
 
  .  limited numbers of local access points for corporate users;
 
  .  inability to integrate business applications on IP networks;
 
  .  the need to operate with multiple and frequently incompatible products;
     and
 
  .  a lack of tools to simplify access to and use of IP networks.
 
  The adoption of IP networks will require a broad acceptance of new methods
of conducting business and exchanging information. Companies and government
agencies that already have invested substantial resources in other methods of
conducting business may be reluctant to adopt new methods. Also, individuals
with established patterns of purchasing goods and services and effecting
payments may be reluctant to change.
 
  The use of IP networks may not increase or may increase more slowly than we
expect because the infrastructure required to support widespread use may not
develop. The Internet may continue to experience significant growth both in
the number of users and the level of use. However, the Internet infrastructure
may not be able to continue to support the demands placed on it by continued
growth. Continued growth may also affect the Internet's performance and
reliability. In addition, the growth and reliability of IP networks could be
harmed by delays in development or adoption of new standards and protocols to
handle increased levels of activity or by increased governmental regulation.
Changes in, or insufficient availability of, communications services to
support IP networks could result in poor performance and also adversely affect
their usage. Any of these factors could materially harm our business. See "--
We Could Be Affected by Government Regulation" and "Business--Industry
Background" and "--Customers and Markets."
 
Our Market is New and Evolving
 
  We target our Internet-based trust services at the market for trusted and
secure electronic commerce and communications over IP networks. This is a new
and rapidly evolving market that may not continue to grow. Accordingly, the
demand for our Internet-based trust services is very uncertain. Even if the
market for electronic commerce and communications over IP networks grows, our
Internet-based trust services may not be widely
 
                                       7
<PAGE>
 
accepted. The factors that may affect the level of market acceptance of
digital certificates and, consequently, our Internet-based trust services,
include the following:
 
  .  market acceptance of products and services based upon authentication
     technologies other than those we use;
 
  .  public perception of the security of digital certificates and IP
     networks;
 
  .  the ability of the Internet infrastructure to accommodate increased
     levels of usage; and
 
  .  government regulations affecting electronic commerce and communications
     over IP networks.
 
  Even if digital certificates achieve market acceptance, our Internet-based
trust services may fail to address the market's requirements adequately. If
digital certificates do not achieve market acceptance in a timely manner and
sustain such acceptance, or if our Internet-based trust services in particular
do not achieve or sustain market acceptance, our business would be materially
harmed. See "Business--Industry Background" and  "--Customers and Markets."
 
Our Quarterly Operating Results May Fluctuate; Our Future Revenues and
Profitability Are Uncertain
 
  Our quarterly operating results have varied and may fluctuate significantly
in the future as a result of a variety of factors, many of which are outside
our control. These factors include the following:
 
  .  continued market acceptance of our Internet-based trust services;
 
  .  the long sales and implementation cycles for, and potentially large
     order sizes of, certain of our Internet-based trust services;
 
  .  the timing and execution of individual contracts;
 
  .  customer renewal rates for our Internet-based trust services;
 
  .  the timing of releases of new versions of Internet browsers or other
     third-party software products and networking equipment which include our
     digital certificate service interface technology;
 
  .  the mix of our services sold during a quarter;
 
  .  our success in marketing other Internet-based trust services to our
     existing customers and to new customers;
 
  .  continued development of our direct and indirect distribution channels,
     both in the U.S. and abroad;
 
  .  market acceptance of our Internet-based trust services or our
     competitors' products and services;
 
  .  our ability to attract, integrate, train, retain and motivate a
     substantial number of sales and marketing, research and development and
     technical support personnel;
 
  .  our ability to expand our operations;
 
  .  our success in assimilating the operations and personnel of SecureIT and
     any other acquired businesses;
 
  .  the amount and timing of expenditures related to expansion of our
     operations;
 
  .  the impact of price changes in our Internet-based trust services or our
     competitors' products and services; and
 
  .  general economic conditions and economic conditions specific to IP
     network industries.
 
  Our limited operating history and the emerging nature of our market make it
difficult to predict future revenues. Our expenses are based, in part, on our
expectations regarding future revenues, and are largely fixed in nature,
particularly in the short term. We may be unable to predict our future
revenues accurately or to adjust spending in a timely manner to compensate for
any unexpected revenue shortfall. Accordingly, any significant
 
                                       8
<PAGE>
 
shortfall of revenues in relation to our expectations could cause significant
declines in our quarterly operating results.
 
  Due to all of the foregoing factors, our quarterly revenues and operating
results are difficult to forecast. Therefore, we believe that period-to-period
comparisons of our operating results will not necessarily be meaningful, and
you should not rely upon them as an indication of our future performance.
Also, it is likely that our operating results will fall below our expectations
and the expectations of securities analysts or investors in some future
quarter. In such event, the market price of our common stock could be
materially adversely affected. See "Management's Discussion and Analysis of
Financial Condition and Results of Operations."
 
System Interruptions and Security Breaches Could Harm Our Business
 
  We depend on the uninterrupted operation of our secure data centers and our
other computer and communications systems. We must protect these systems from
loss, damage or interruption caused by fire, earthquake, power loss,
telecommunications failure or other events beyond our control. Most of our
systems are located at, and most of our customer information is stored in, our
facilities in Mountain View, California and Kawasaki, Japan, areas susceptible
to earthquakes. Any damage or failure that causes interruptions in our secure
data centers and our other computer and communications systems could
materially harm our business. In addition, our ability to issue digital
certificates depends on the efficient operation of the Internet connections
from customers to our secure data centers. Such connections depend upon
efficient operation of web browsers, Internet service providers and Internet
backbone service providers, all of which have had periodic operational
problems or experienced outages in the past. Any of these problems or outages
could adversely affect customer satisfaction.
 
  Our success also depends upon the scalability of our systems. Our systems
have not been tested at the volumes that may be required in the future. Thus,
it is possible that a substantial increase in demand for our Internet-based
trust services could cause interruptions in our systems. Any such
interruptions could adversely affect our ability to deliver our Internet-based
trust services and therefore could materially harm our business.
 
  Although we periodically perform, and retain accredited third parties to
perform, audits of our operational practices and procedures, we may not be
able to remain in compliance with our internal standards or those set by
third-party auditors. If we fail to maintain these standards, we may have to
expend significant time and money to return to compliance and our business
could be materially harmed.
 
  We retain certain confidential customer information in our secure data
centers. It is critical to our business strategy that our facilities and
infrastructure remain secure and are perceived by the marketplace to be
secure. Despite our security measures, our infrastructure may be vulnerable to
physical break-ins, computer viruses, attacks by hackers or similar disruptive
problems. It is possible that we may have to expend additional financial and
other resources to address such problems. Any physical or electronic break-ins
or other security breaches or compromises of the information stored at our
secure data centers may jeopardize the security of information stored on our
premises or in the computer systems and networks of our customers. In such an
event, we could face significant liability and customers could be reluctant to
use our Internet-based trust services. Such an occurrence could also result in
adverse publicity and therefore adversely affect the market's perception of
the security of electronic commerce and communications over IP networks as
well as of the security or reliability of our services. See "Business--The
VeriSign Solution," "--Strategy," "--Infrastructure," "--Security and Trust
Practices" and "--Facilities."
 
We Face Significant Competition
 
  We anticipate that the market for services that enable trusted and secure
electronic commerce and communications over IP networks will remain intensely
competitive. We compete with larger and smaller companies that provide
products and services that are similar to certain aspects of our Internet-
based trust services. We expect that competition will increase in the near
term, and that our primary long-term competitors may not yet have entered the
market. Increased competition could result in pricing pressures, reduced
margins or
 
                                       9
<PAGE>
 
the failure of our Internet-based trust services to achieve or maintain market
acceptance, any of which could materially harm our business. Several of our
current and potential competitors have longer operating histories and
significantly greater financial, technical, marketing and other resources. As
a result, we may not be able to compete effectively. For a more detailed
description of the competitive threats facing us, see "Business--Competition."
 
Technological Changes Will Affect Our Business
 
  The emerging nature of the Internet and digital certificate markets and
their rapid evolution requires us to continually improve the performance,
features and reliability of our Internet-based trust services, particularly in
response to competitive offerings. We must also introduce any new Internet-
based trust services as quickly as possible. The success of new Internet-based
trust services depends on several factors, including proper new service
definition and timely completion, introduction and market acceptance of our
new Internet-based trust services. We may not succeed in developing and
marketing new Internet-based trust services that respond to competitive and
technological developments and changing customer needs. This could materially
harm our business.
 
  If new Internet, networking or telecommunication technologies or standards
are widely adopted or if other technological changes occur, we may need to
expend significant resources to adapt our Internet-based trust services. See
"Business--Trust Services" and "--Research and Development."
 
We Must Manage Our Growth and Expansion
 
  Our historical growth has placed, and any further growth is likely to
continue to place, a significant strain on our resources. VeriSign has grown
from 26 employees at December 31, 1995 to 322 employees at December 31, 1998.
We have also opened additional sales offices and have significantly expanded
our operations, both in the U.S. and abroad, during this time period. We
expanded our operations by acquiring SecureIT during 1998. To be successful,
we will need to implement additional management information systems, develop
further our operating, administrative, financial and accounting systems and
controls and maintain close coordination among our executive, engineering,
accounting, finance, marketing, sales and operations organizations. Any
failure to manage growth effectively could materially harm our business. See
"Management's Discussion and Analysis of Financial Condition and Results of
Operations."
 
We Depend on Key Personnel
 
  We depend on the performance of our senior management team and other key
employees. Our success will depend on our ability to retain and motivate these
individuals. Our success will also depend on our ability to attract,
integrate, train, retain and motivate additional highly skilled technical and
sales and marketing personnel, both in the U.S. and abroad. There is intense
competition for these personnel. In addition, our stringent hiring practices
for some of our key personnel, which consist of background checks into
prospective employees' criminal and financial histories, further limit the
number of qualified persons for such positions. See "Business--Security and
Trust Practices." VeriSign has no employment agreements with any of its key
executives that prevent them from leaving VeriSign at any time. In addition,
we do not maintain key person life insurance for any of our officers or key
employees other than our President and Chief Executive Officer. The loss of
the services of any of our senior management team or other key employees or
our failure to attract, integrate, train, retain and motivate additional key
employees could materially harm our business. See "Business--Employees" and
"Management."
 
We Must Establish and Maintain Strategic Relationships
 
  One of our significant business strategies has been to enter into strategic
or other similar collaborative relationships in order to reach a larger
customer base than we could reach through our direct sales and marketing
efforts. We may need to enter into additional relationships to execute our
business plan. We may not be able to
 
                                      10
<PAGE>
 
enter into additional, or maintain our existing, strategic relationships on
commercially reasonable terms. If we failed, we would have to devote
substantially more resources to the distribution, sale and marketing of our
Internet-based trust services than we would otherwise. Furthermore, as a
result of our emphasis on these relationships, our success in such
relationships will depend both on the ultimate success of the other parties to
such relationships, particularly in the use and promotion of IP networks for
trusted and secure electronic commerce and communications, and on the ability
of certain of these parties to market our Internet-based trust services
successfully. Failure of one or more of our strategic relationships to result
in the development and maintenance of a market for our Internet-based trust
services could materially harm our business.
 
  Our existing strategic relationships do not, and any future strategic
relationships may not, afford VeriSign any exclusive marketing or distribution
rights. In addition, the other parties may not view their relationships with
us as significant for their own businesses. Therefore, they could reduce their
commitment to VeriSign at any time in the future. These parties could also
pursue alternative technologies or develop alternative products and services
either on their own or in collaboration with others, including our
competitors. If we are unable to maintain our strategic relationships or to
enter into additional strategic relationships, our business could be
materially harmed. See "Business--Strategy," "--Strategic Relationships" and
"--Marketing, Sales and Distribution."
 
Certain of Our Internet-based Trust Services Have Lengthy Sales and
Implementation Cycles
 
  We market many of our Internet-based trust services directly to large
companies and government agencies. The sale and implementation of our services
to these entities typically involves a lengthy education process and a
significant technical evaluation and commitment of capital and other
resources. This process is also subject to the risk of delays associated with
customers' internal budgeting and other procedures for approving large capital
expenditures, deploying new technologies within their networks and testing and
accepting new technologies that affect key operations. As a result, the sales
and implementation cycles associated with certain of our Internet-based trust
services can be lengthy, potentially lasting from three to six months. Our
quarterly and annual operating results could be materially harmed if orders
forecasted for a specific customer for a particular quarter are not realized.
See "--Our Quarterly Operating Results May Fluctuate; Our Future Revenues and
Profitability Are Uncertain" and "Management's Discussion and Analysis of
Financial Condition and Results of Operations."
 
Our Internet-based Trust Services Could Have Unknown Defects
 
  Services as complex as those we offer or develop frequently contain
undetected defects or errors. Despite testing, defects or errors may occur in
existing or new Internet-based trust services, which could result in loss of
or delay in revenues, loss of market share, failure to achieve market
acceptance, diversion of development resources, injury to our reputation,
increased insurance costs or increased service and warranty costs, any of
which could materially harm our business. Furthermore, we often provide
implementation, customization, consulting and other technical services in
connection with the implementation and ongoing maintenance of our Internet-
based trust services and our digital certificate service agreements. The
performance of these Internet-based trust services typically involves working
with sophisticated software, computing and communications systems. Our failure
or inability to meet customer expectations or project milestones in a timely
manner could also result in loss of or delay in revenues, loss of market
share, failure to achieve market acceptance, injury to our reputation and
increased costs.
 
  Because customers rely on our Internet-based trust services for critical
security applications, any significant defects or errors in our Internet-based
trust services might discourage customers from subscribing to our services.
Such defects or errors could also result in tort or warranty claims. Although
we attempt to reduce the risk of losses resulting from such claims through
warranty disclaimers and liability limitation clauses in our sales agreements,
these contractual provisions may not be enforceable in every instance.
Furthermore, although we maintain errors and omissions insurance, such
insurance coverage may not adequately cover us for claims. If a court refused
to enforce the liability-limiting provisions of our contracts for any reason,
or if liabilities arose that were not contractually limited or adequately
covered by insurance, our business could be materially harmed. See "Business--
Trust Services" and "--Research and Development."
 
                                      11
<PAGE>
 
Public Key Cryptography Technology Is Subject to Certain Risks
 
  Our Internet-based trust services depend on public key cryptography
technology. With public key cryptography technology, a user is given a public
key and a private key, both of which are required to encrypt and decode
messages. The security afforded by this technology depends on the integrity of
a user's private key and that it is not stolen or otherwise compromised. The
integrity of private keys also depends in part on the application of certain
mathematical principles known as "factoring." This integrity is predicated on
the assumption that the factoring of large numbers into their prime number
components is difficult. Should an easy factoring method be developed, then
the security of encryption products utilizing public key cryptography
technology would be reduced or eliminated. Furthermore, any significant
advance in techniques for attacking cryptographic systems could also render
some or all of our existing Internet-based trust services obsolete or
unmarketable. Even if no breakthroughs in factoring or other methods of
attacking cryptographic systems are made, factoring problems can theoretically
be solved by computer systems significantly faster and more powerful than
those presently available. Current or future governmental regulation regarding
the use, scope and strength of public key cryptography could also limit our
ability to develop and distribute digital certificates with encryption strong
enough to maintain the integrity of a user's private key against factoring by
more powerful computer systems. If such improved techniques for attacking
cryptographic systems are ever developed, we would likely have to reissue
digital certificates to some or all of our customers, which could damage our
reputation and brand or otherwise harm our business. In the past there have
been public announcements of the successful decoding of certain cryptographic
messages and of the potential misappropriation of private keys. Such publicity
could also adversely affect the public perception as to the safety of the
public key cryptography technology included in our digital certificates. Such
adverse public perception could harm our business. See "Business--Industry
Background" and "--Trust Services."
 
Our International Operations Are Subject to Certain Risks
 
  Revenues of VeriSign Japan K.K., or VeriSign Japan, and revenues from other
international affiliates and customers accounted for approximately 9% of our
revenues in 1997 and approximately 11% of our revenues for the nine months
ended September 30, 1998. We intend to expand our international operations and
international sales and marketing activities. Expansion into these markets has
required and will continue to require significant management attention and
resources. We may also need to tailor our Internet-based trust services for a
particular market and to enter into international distribution and operating
relationships. We have limited experience in localizing our Internet-based
trust services and in developing international distribution or operating
relationships. We may not succeed in expanding our Internet-based trust
service offerings into international markets. Any such failure could harm our
business.
 
  In addition, there are certain risks inherent in doing business on an
international basis, including, among others:
 
  . regulatory requirements;
 
  . legal uncertainty regarding liability;
 
  . export and import restrictions on cryptographic technology and products
  incorporating that technology;
 
  . tariffs and other trade barriers;
 
  . difficulties in staffing and managing foreign operations;
 
  . longer sales and payment cycles;
 
  . problems in collecting accounts receivable;
 
  . difficulty of authenticating customer information;
 
  . political instability;
 
  . seasonal reductions in business activity; and
 
  . potentially adverse tax consequences.
 
                                      12
<PAGE>
 
  We have licensed to certain international affiliates the VeriSign Processing
Center platform, which is designed to replicate our own secure data centers
and allows the affiliate to offer back-end processing of Internet-based trust
services. The VeriSign Processing Center platform provides an affiliate with
the knowledge and technology to offer Internet-based trust services similar to
those offered by VeriSign. It is critical to our business strategy that the
facilities and infrastructure used in issuing and marketing digital
certificates remain secure and be perceived by the marketplace to be secure.
Although we provide the affiliate with training in security and trust
practices, network management and customer service and support, these
practices are performed by the affiliate and are outside of our control. Any
failure of an affiliate to maintain the privacy of confidential customer
information could result in negative publicity and therefore adversely affect
the market's perception of the security of our services as well as the
security of electronic commerce and communication over IP networks generally.
See "--System Interruptions and Security Breaches Could Harm Our Business" and
"Business--Trust Services."
 
  All of our international revenues from sources other than VeriSign Japan are
denominated in U.S. dollars. If additional portions of our international
revenues were to be denominated in foreign currencies, we could become subject
to increased risks relating to foreign currency exchange rate fluctuations.
See "--Industry Regulation," "Management's Discussion and Analysis of
Financial Condition and Results of Operations" and "Business--Strategy" and
"--Marketing, Sales and Distribution."
 
We Depend on Authentication Information
 
  We rely upon information provided by third-party sources to authenticate the
identity of customers requesting certain of our digital certificates. This
information is presently only available from a limited number of sources and
we currently procure such information from single sources. Reliance on single
sources involves certain risks and uncertainties, including the possibility of
delayed or discontinued availability. Any such delay or unavailability,
coupled with any inability to develop alternative sources quickly and cost-
effectively, could impair our ability to deliver certain digital certificates
on a timely basis and result in the cancellation of orders, increased costs
and injury to our reputation. This could harm our business. Reliance on third-
party information sources for authentication has also limited the distribution
of certain of our digital certificates outside of the U.S., where access to
such sources has been unavailable or limited.
 
  Additionally, accurate authentication of the identity of the individuals and
entities to which we issue digital certificates is necessary for such digital
certificates to provide security and trust. Therefore, if any authentication
information that we rely upon is inaccurate, it could adversely affect our
reputation and result in tort or warranty claims from customers relying upon
our digital certificates for trusted and secure electronic commerce and
communications. This could materially harm our business. See "--Our Internet-
based Trust Services Could Have Unknown Defects" and "Business--Products and
Services."
 
We Could Be Affected By Government Regulation
 
  Exports of software products utilizing encryption technology are generally
restricted by the U.S. and various non-U.S. governments. Although we have
obtained approval to export our Global Server digital certificate service and
none of our other Internet-based trust services are currently subject to
export controls under U.S. law, the list of products and countries for which
export approval is required could be revised in the future to include more
digital certificate products and related services. If we do not obtain
required approvals we may not be able to sell certain Internet-based trust
services in international markets. There are currently no federal laws or
regulations that specifically control CAs, but a limited number of states have
enacted legislation or regulations with respect to CAs. If the market for
digital certificates grows, the U.S. federal or state or non-U.S. governments
may choose to enact further regulations governing CAs or other providers of
digital certificate products and related services. Such regulations or the
costs of complying with such regulations could harm our business.
 
  Many companies conducting electronic commerce over IP networks do not
collect sales or other similar taxes with respect to shipments of goods into
other states or foreign countries or with respect to other transactions
 
                                      13
<PAGE>
 
conducted between parties in different states or countries. It is possible
that the U.S. federal or state or non-U.S. governments may seek to impose
sales taxes on companies that engage in electronic commerce over IP networks.
In the event that government bodies succeed in imposing sales or other taxes
on electronic commerce, the growth of the use of IP networks for electronic
commerce could slow substantially, which could materially harm our business.
 
  Due to the increasing popularity of IP networks, it is possible that laws
and regulations may be enacted covering issues such as user privacy, pricing,
content and quality of products and services. The increased attention focused
upon these issues as a result of the adoption of other laws or regulations may
reduce the rate of growth of IP networks, which in turn could result in
decreased demand for our Internet-based trust services or could otherwise
materially harm our business. See "Business--Industry Background."
 
Acquisitions Could Harm Our Business
 
  During 1998, we acquired SecureIT. If we are unable to successfully complete
the integration of SecureIT, our business could be materially harmed. We may
acquire additional businesses, technologies, product lines or service
offerings in the future. Acquisitions involve a number of risks including,
among others:
 
  .  the difficulty of assimilating the operations and personnel of the
     acquired businesses;
 
  .  the potential disruption of our business;
 
  .  our inability to integrate, train, retain and motivate key personnel of
     the acquired business;
 
  .  the diversion of our management from our day-to-day operations;
 
  .  our inability to incorporate acquired technologies successfully into our
     Internet-based trust services;
 
  .  the additional expense associated with completing an acquisition and
     amortizing any acquired intangible assets;
 
  .  the potential impairment of relationships with our employees, customers
     and strategic partners; and
 
  .  the inability to maintain uniform standards, controls, procedures and
     policies.
 
  If we are unable to successfully address any of these risks, our business
could be materially harmed.
 
We Face Risks Related to Intellectual Property Rights
 
  Our success depends on our internally developed technologies and other
intellectual property. Despite our precautions, it may be possible for a third
party to copy or otherwise obtain and use our intellectual property or trade
secrets without authorization. In addition, it is possible that others may
independently develop substantially equivalent intellectual property. If we do
not effectively protect our intellectual property, our business could be
materially harmed.
 
  In the future we may have to resort to litigation to enforce our
intellectual property rights, to protect our trade secrets or to determine the
validity and scope of the proprietary rights of others. Such litigation,
regardless of its outcome, could result in substantial costs and diversion of
management and technical resources.
 
  We also license third-party technology, such as public key cryptography
technology licensed from RSA and other technology that is used in our
products, to perform key functions. These third-party technology licenses may
not continue to be available to us on commercially reasonable terms or at all.
Our business could be materially harmed if we lost the rights to use these
technologies. A third party could claim that the licensed software infringes
any patent or other proprietary right. Litigation between the licensor and a
third party or between us and a third party could lead to royalty obligations
for which we are not indemnified or for which such indemnification is
insufficient, or we may not be able to obtain any additional license on
commercially reasonable terms or at all.
 
                                      14
<PAGE>
 
  The loss of, or our inability to obtain or maintain, any of these technology
licenses could delay the introduction of our Internet-based trust services
until equivalent technology, if available, is identified, licensed and
integrated. This could harm our business.
 
  From time to time, we have received, and may receive in the future, notice
of claims of infringement of other parties' proprietary rights. Infringement
or other claims could be made against us in the future. Any such claims, with
or without merit, could be time-consuming, result in costly litigation and
diversion of technical and management personnel, cause product shipment delays
or require us to develop non-infringing technology or enter into royalty or
licensing agreements. Such royalty or licensing agreements, if required, may
not be available on acceptable terms or at all. If a successful claim of
product infringement were made against us and we could not develop non-
infringing technology or license the infringed or similar technology on a
timely and cost-effective basis, our business could be harmed. See "Business--
Intellectual Property."
 
Year 2000 Issues Could Affect Our Business
 
  We are in the process of assessing and remediating any Year 2000 issues with
the computer communications, software and security systems that we use to
deliver and manage our Internet-based trust services and to manage our
internal operations. Despite our testing and remediating, our systems may
contain errors or faults with respect to the Year 2000. Our efforts to address
this issue are described in more detail in "Management's Discussion and
Analysis of Financial Condition and Results of Operations--Year 2000 Issues."
If our systems do not operate properly with regard to the Year 2000 and
thereafter we could incur unanticipated expenses to remedy any problems, which
could adversely affect our business.
 
  Customer's purchasing plans could be affected by Year 2000 issues as they
may need to expend significant resources to correct their existing systems.
This situation may result in reduced funds available to implement the
infrastructure needed to conduct trusted and secure electronic commerce and
communications over IP networks or to purchase our Internet-based trust
services. These factors could materially harm our business. See "Management's
Discussion and Analysis of Financial Condition and Results of Operations" and
"Business--Industry Background."
 
We Have Implemented Certain Anti-Takeover Provisions
 
  Certain provisions of our Amended and Restated Certificate of Incorporation
and Bylaws, as well as provisions of Delaware law could make it more difficult
for a third party to acquire us, even if doing so would be beneficial to our
stockholders. See "Description of Capital Stock."
 
Future Sales of Shares Could Affect Our Stock Price
   
  If our stockholders sell substantial amounts of our common stock in the
public market following this offering, the market price of our common stock
could fall. Based on shares outstanding as of December 31, 1998, upon
completion of this offering we will have outstanding 23,910,359 shares of
common stock (assuming no exercise of the underwriters' over-allotment option
and no exercise of outstanding options after December 31, 1998). Of these
shares 17,913,229 are currently eligible for sale in the public market. After
the lockup agreements with the underwriters of this offering expire 90 days
from the date of this prospectus, an additional 4,745,944 shares will be
eligible for sale in the public market. The remaining 1,251,186 shares will be
eligible for public sale after July 6, 1999, subject to the volume limitations
and other conditions of Rule 144.     
 
  In addition, the former shareholders of SecureIT have the right, after
January 30, 1999, to require us to file a registration statement to register
the resale of 418,093 shares.
 
  These share numbers exclude 4,129,444 shares subject to outstanding stock
options and 711,596 shares reserved for future issuance under our stock plans
as of December 31, 1998. See "Management--Employee Benefit Plans," "Shares
Eligible for Future Sale" and "Underwriters."
 
                                      15
<PAGE>
 
Our Stock Price May Be Volatile
 
  The market price of our common stock has fluctuated in the past and is
likely to fluctuate in the future. In addition, the market prices of
securities of other technology companies, particularly Internet-related
companies, have been highly volatile. Factors that may have a significant
effect on the market price of our common stock include:
 
  .  fluctuations in our operating results;
 
  .  announcements of technological innovations or new Internet-based trust
     services by us or new products or services by our competitors;
 
  .  analysts' reports and projections;
 
  .  regulatory actions; and
 
  .  general market, economic or political conditions in the U.S. or abroad.
 
  Investors may not be able to resell their shares of our common stock at or
above the offering price. See "Price Range of Common Stock."
 
Existing Stockholders Will Maintain Significant Influence
   
  The present executive officers, directors and their affiliates will
beneficially own approximately 25.5% of our outstanding common stock upon the
completion of this offering. As a result, these stockholders could
significantly influence our management and affairs and all matters requiring
stockholder approval, including the election of directors and approval of
significant corporate transactions such as a merger, consolidation or sale of
substantially all of our assets. See "Principal and Selling Stockholders."
    
Use of Proceeds Is Unspecified
 
  We plan to use the proceeds from this offering for general corporate
purposes. Therefore, we will have discretion as to how we will spend the
proceeds, which could be in ways with which the stockholders may not agree. We
cannot predict that the proceeds will be invested to yield a favorable return.
See "Use of Proceeds."
 
                                      16
<PAGE>
 
                                USE OF PROCEEDS
   
  We estimate that the net proceeds from the sale of the 835,000 shares we are
selling in this offering will be approximately $51.9 million, based on an
assumed public offering price of $66.25 per share, after deducting
underwriting discounts and commissions and estimated offering expenses. If the
Underwriters' over-allotment option is exercised in full, we estimate that our
net proceeds from this offering will be $74.5 million. VeriSign will not
receive any proceeds from the sale of the shares being sold by the Selling
Stockholders.     
 
  We intend to use our net proceeds from this offering primarily for working
capital and other general corporate purposes. We may also use a portion of the
net proceeds to acquire or invest in businesses, technologies, product lines
or service offerings that are complementary to our business. We have no
present plans or commitments and are not currently engaged in any negotiations
with respect to such transactions. As a result, we will have significant
discretion as to the use of the net proceeds. Pending such uses, we intend to
invest the net proceeds in short-term, interest-bearing, investment-grade
securities. See "Risk Factors--Acquisitions Could Harm Our Business" and "--
Use of Proceeds Is Unspecified."
 
                                DIVIDEND POLICY
 
  We have never declared or paid any cash dividends on our common stock or
other securities and do not anticipate paying any cash dividends in the
foreseeable future. In addition, the terms of our equipment line of credit
agreement prohibit the payment of dividends on our capital stock.
 
                          PRICE RANGE OF COMMON STOCK
 
  Our common stock has been traded on the Nasdaq National Market under the
symbol "VRSN" since January 29, 1998, the date of our initial public offering.
Prior to such time, there was no public market for our common stock. The
following table sets forth, for the periods indicated, the high and low sales
prices for our common stock as reported by the Nasdaq National Market.
 
<TABLE>   
<CAPTION>
                                                                  High     Low
                                                                 ------- -------
<S>                                                              <C>     <C>
Fiscal Year Ended December 31, 1998:
  First Quarter................................................. $46 7/8 $20 1/2
  Second Quarter................................................  49      26
  Third Quarter.................................................  44 7/8  21 7/8
  Fourth Quarter................................................  77 1/2  19 3/8
Fiscal Year Ending December 31, 1999:
  First Quarter (through January 13, 1999)......................  82      54
</TABLE>    
   
  On January 13, 1999, the last reported sale price for our common stock on
the Nasdaq National Market was $66.25 per share. As of December 31, 1998,
there were approximately 235 holders of record of our common stock, although
we estimate that there are in excess of 3,000 beneficial holders.     
 
                                      17
<PAGE>
 
                                CAPITALIZATION
   
  The following table sets forth VeriSign's capitalization as of September 30,
1998 and as adjusted to reflect the receipt by VeriSign of the estimated net
proceeds from selling 835,000 shares in this offering, based on an assumed
public offering price of $66.25 per share and after deducting underwriting
discounts and commissions and estimated offering expenses.     
 
<TABLE>   
<CAPTION>
                                                           September 30, 1998
                                                          ---------------------
                                                           Actual   As Adjusted
                                                          --------  -----------
                                                             (In thousands)
<S>                                                       <C>       <C>
Stockholders' equity:
 Preferred stock, $.001 par value; 5,000,000 shares
  authorized, no shares issued and outstanding .......... $     --   $     --
 Common stock, $.001 par value; 50,000,000 shares
  authorized; actual--22,732,876 shares issued and
  outstanding; As adjusted--23,567,876 shares issued and
  outstanding(1).........................................       23         24
 Additional paid-in capital..............................   91,496    143,360
 Notes receivable from stockholders......................     (582)      (582)
 Deferred compensation...................................     (302)      (302)
 Accumulated deficit.....................................  (48,279)   (48,279)
                                                          --------   --------
  Total stockholders' equity.............................   42,356     94,221
                                                          --------   --------
    Total capitalization................................. $ 42,356   $ 94,221
                                                          ========   ========
</TABLE>    
- --------
Note: (1)The number of shares of common stock issued and outstanding does not
include:
 
     .  1,686,587 shares issuable upon the exercise of options outstanding
        as of September 30, 1998, under the 1995 Stock Option Plan, with a
        weighted average exercise price of $2.46 per share;
 
     .  518,050 shares issuable upon the exercise of options outstanding as
        of September 30, 1998, under the 1997 Stock Option Plan, with a
        weighted average exercise price of $7.34 per share;
 
     .  145,098 shares issuable upon the exercise of options outstanding as
        of September 30, 1998, under the SecureIT 1997 Stock Option Plan,
        which was assumed by VeriSign, with a weighted average exercise
        price of $7.64 per share;
 
     .  1,116,910 shares issuable upon the exercise of options outstanding
        as of September 30, 1998, under our 1998 Equity Incentive Plan (the
        "Equity Incentive Plan"), with a weighted average exercise price of
        $29.09 per share, and 1,255,022 shares reserved for future issuance
        thereunder;
 
     .  441,775 shares reserved for issuance under our 1998 Employee Stock
        Purchase Plan (the "Purchase Plan");
 
     .  37,500 shares issuable upon the exercise of options outstanding as
        of September 30, 1998 under our 1998 Directors Stock Option Plan
        (the "Directors Plan"), with a weighted average exercise price of
        $39.25 per share, and 87,500 shares reserved for future issuance
        thereunder;
 
     .  15,000 shares that would be issued to a service provider if certain
        milestones are met; and
 
     .  17,500 shares subject to a warrant that would be issued in the
        event that VeriSign borrows funds under an equipment loan
        agreement.
 
  See "Management--Director Compensation," "--Employee Benefit Plans,"
"Description of Capital Stock" and Notes 6 and 8 of Notes to Consolidated
Financial Statements.
 
                                      18
<PAGE>
 
                                   DILUTION
   
  The net tangible book value of VeriSign's common stock as of September 30,
1998 was $42.4 million, or $1.86 per share. Net tangible book value per share
is equal to our total tangible assets less our total liabilities, divided by
the shares of common stock outstanding as of September 30, 1998. After giving
effect to our issuance and sale of 835,000 shares of common stock in this
offering, based on an assumed public offering price of $66.25 per share, and
after deducting underwriting discounts and commissions and estimated offering
expenses payable by VeriSign, our net tangible book value as of September 30,
1998 would have been $94.2 million, or $4.00 per share. This amount represents
an immediate increase in net tangible book value of $2.14 per share to
existing stockholders and an immediate dilution of $62.25 per share to new
public investors. The following table illustrates the per share dilution:     
 
<TABLE>   
   <S>                                                            <C>   <C>
   Assumed public offering price per share.......................       $66.25
     Net tangible book value per share at September 30, 1998..... $1.86
     Increase in net tangible book value per share attributable
      to new public investors....................................  2.14
                                                                  -----
   Net tangible book value per share after offering..............         4.00
                                                                        ------
   Dilution per share to new public investors....................       $62.25
                                                                        ======
</TABLE>    
   
  The table above assumes no exercise of any stock options outstanding as of
September 30, 1998, no exercise of a warrant to purchase 17,500 shares of
common stock that would be issued in the event that VeriSign borrows funds
under an equipment loan agreement, and no issuance of 15,000 shares of common
stock that would be issued to a service provider if certain milestones are
met. As of September 30, 1998, there were options outstanding to purchase a
total of 3,504,145 shares of common stock with a weighted average exercise
price of $12.27 per share. To the extent that any of these options or the
warrant are exercised, there will be further dilution to new public investors.
See "Capitalization," "Management--Director Compensation," "--Employee Benefit
Plans" and Notes 6 and 8 of Notes to Consolidated Financial Statements.     
 
                                      19
<PAGE>
 
                     SELECTED CONSOLIDATED FINANCIAL DATA
   
  The following selected consolidated financial data should be read in
conjunction with VeriSign's Consolidated Financial Statements and the notes
thereto and "Management's Discussion and Analysis of Financial Condition and
Results of Operations" appearing elsewhere in this prospectus. The selected
consolidated statement of operations data presented below for the period from
April 12, 1995 (inception) to December 31, 1995 and for each of the years in
the two-year period ended December 31, 1997, and the selected consolidated
balance sheet data as of December 31, 1996 and 1997, are derived from
consolidated financial statements that have been audited by KPMG LLP,
independent auditors, and are included elsewhere in this prospectus. The
selected consolidated balance sheet data as of December 31, 1995 are derived
from consolidated financial statements that have been audited by KPMG LLP,
independent auditors, but that are not included elsewhere in this prospectus.
The selected consolidated statement of operations data for the nine months
ended September 30, 1997 and 1998 and the selected consolidated balance sheet
data as of September 30, 1998 are derived from consolidated financial
statements that have not been audited. The unaudited consolidated financial
statements reflect all normal recurring adjustments that, in the opinion of
management, are necessary for a fair presentation on the financial position of
VeriSign at September 30, 1998 and the results of operations for the interim
periods ended September 30, 1997 and 1998. The results of operations for any
interim period are not necessarily indicative of the results of our operations
for any future interim period or for a full fiscal year.     
 
<TABLE>
<CAPTION>
                           Period from
                          April 12, 1995    Year Ended         Nine Months Ended
                          (Inception) to   December 31,          September 30,
                           December 31,  ------------------  -----------------------
                               1995        1996      1997      1997        1998
                          -------------- --------  --------  --------  -------------
                                   (In thousands, except per share data)
<S>                       <C>            <C>       <C>       <C>       <C>
Consolidated Statement
 of Operations Data:
Revenues ...............     $   382     $  1,356  $ 13,356  $  8,360    $ 25,719
                             -------     --------  --------  --------    --------
Costs and expenses:
  Cost of revenues......         412        2,791     9,689     6,172      13,467
  Sales and marketing...         790        4,885    11,826     7,732      16,449
  Research and
   development..........         642        2,058     5,303     3,643       6,242
  General and
   administrative.......         680        2,681     5,039     3,147       5,842
  Special charges.......          --           --     2,800     2,000       3,555
                             -------     --------  --------  --------    --------
   Total costs and
    expenses............       2,524       12,415    34,657    22,694      45,555
                             -------     --------  --------  --------    --------
   Operating loss.......      (2,142)     (11,059)  (21,301)  (14,334)    (19,836)
Other income (expense)..         148          (67)    1,174       872       1,677
                             -------     --------  --------  --------    --------
   Loss before minority
    interest............      (1,994)     (11,126)  (20,127)  (13,462)    (18,159)
Minority interest in net
 loss of subsidiary.....          --          838     1,538     1,194         950
                             -------     --------  --------  --------    --------
   Net loss.............     $(1,994)    $(10,288) $(18,589) $(12,268)   $(17,209)
                             =======     ========  ========  ========    ========
Basic and diluted net
 loss per share(1)......     $  (.43)    $  (2.07) $  (2.61) $  (1.54)   $   (.82)
                             =======     ========  ========  ========    ========
Shares used in per share
 computation(1).........       4,689        4,960     7,121     7,988      21,042
                             =======     ========  ========  ========    ========
<CAPTION>
                                                December 31,
                                         ----------------------------  September 30,
                                           1995      1996      1997        1998
                                         --------  --------  --------  -------------
                                                      (In thousands)
<S>                       <C>            <C>       <C>       <C>       <C>
Consolidated Balance
 Sheet Data:
Cash, cash equivalents
 and short-term
 investments............                 $  2,687  $ 30,006  $ 12,893    $ 42,468
Working capital.........                    2,284    24,788     6,160      33,299
Total assets............                    4,052    36,537    26,904      63,643
Stockholders' equity....                    3,376    28,520    13,541      42,356
</TABLE>
- --------
Note: (1) See Note 1 of Notes to Consolidated Financial Statements for an
          explanation of the determination of the number of shares used in per
          share computation.
 
                                      20
<PAGE>
 
                     MANAGEMENT'S DISCUSSION AND ANALYSIS
               OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
 
  You should read the following discussion in conjunction with the
Consolidated Financial Statements and notes thereto appearing elsewhere in
this prospectus. Except for historical information, the following discussion
contains forward-looking statements within the meaning of Section 27A of the
Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934.
Such forward-looking statements involve risks and uncertainties, including,
among other things, statements regarding our anticipated costs and expenses,
revenue mix and plans for addressing Year 2000 issues. Such forward-looking
statements include, among others, those statements including the words,
"expects," "anticipates," "intends," "believes" and similar language. Our
actual results may differ significantly from those projected in the forward-
looking statements. Factors that might cause future results to differ
materially from those discussed in the forward-looking statements include, but
are not limited to, those discussed in "Risk Factors" and elsewhere in this
prospectus.
 
Overview
 
  VeriSign is the leading provider of Internet-based trust services needed by
websites, enterprises and individuals to conduct trusted and secure electronic
commerce and communications over IP networks. We have established strategic
relationships with industry leaders, including AT&T, BT, Cisco, Microsoft,
Netscape, Network Associates, RSA, Security Dynamics and VISA, to enable
widespread utilization of our digital certificate services and to assure their
interoperability with a wide variety of applications and network equipment. We
have used our secure online infrastructure to issue over 100,000 of our
website digital certificates and over 3.5 million of our digital certificates
for individuals. We believe that we have issued more digital certificates than
any other company in the world. Our Website Digital Certificate services are
used by over 400 of the Fortune 500 companies and all of the top 25 electronic
commerce websites as listed by Jupiter Communications, an independent market
research firm. We also offer the VeriSign OnSite service, which allows an
organization to leverage our trusted service infrastructure to develop and
deploy customized digital certificate services for use by its employees,
customers and business partners. Over 300 enterprises have subscribed to the
OnSite service since its introduction in November 1997, including Bank of
America, Hewlett-Packard, the Internal Revenue Service, Kodak, Sumitomo Bank,
Texas Instruments and USWest.
 
  We have derived substantially all of our revenues to date from fees for
services rendered in connection with deploying Internet-based trust services.
Revenues from our Internet-based trust services consist of fees for the
issuance of digital certificates, fees for digital certificate software
modules and fees for consulting, training, support and maintenance services.
We defer revenues from the sale or renewal of digital certificates and
recognize this revenue ratably over the life of the digital certificate,
generally 12 months. We recognize revenues from the sale of digital
certificate software modules to distributors and affiliates upon delivery of
the software and signing of an agreement, provided the fee is fixed and
determinable, collectibility is probable and the arrangement does not require
significant production, modification or customization of the software. We
recognize revenues from consulting and training services using the percentage-
of-completion method for fixed-fee development arrangements, or as the
services are provided for time-and-materials arrangements. We recoginze
revenue ratably over the term of the agreement for support and maintenance
services.
 
  We market our Internet-based trust services worldwide through multiple
distribution channels, including the Internet, direct sales, telesales, VARs,
systems integrators and our affiliates. A significant portion of our revenues
to date has been generated through sales from our website, but we intend to
continue increasing our direct sales force, both in the U.S. and abroad, and
to continue to expand our other distribution channels.
 
  In connection with the formation of VeriSign Japan, we licensed certain
technology and contributed other assets to VeriSign Japan. Subsequent to its
formation, additional investors purchased minority interests in VeriSign
Japan. As of September 30, 1998, we owned 50.5% of the outstanding capital
stock of VeriSign Japan. Accordingly, our
 
                                      21
<PAGE>
 
consolidated financial statements include the accounts of VeriSign Japan and
our consolidated statements of operations reflect the minority shareholders'
share of the net losses of VeriSign Japan.
 
  In July 1998, we acquired SecureIT, a provider of Internet and enterprise
security solutions, including a range of products and services to help clients
assess, design and implement security solutions. In addition, SecureIT
provides training on related subjects. The acquisition added services and
technology complementary to our Internet-based trust services. We have
accounted for the acquisition as a pooling-of-interests. Accordingly, we have
restated all prior period consolidated financial statements to include the
results of operations, financial position and cash flows of SecureIT as though
it had always been a part of VeriSign.
 
  We have experienced substantial net losses in each fiscal period since our
inception. As of September 30, 1998, we had an accumulated deficit of $48.3
million. These net losses and accumulated deficit resulted from our lack of
substantial revenues and the significant costs incurred in the development and
sale of our Internet-based trust services and in the establishment and
deployment of our technology, infrastructure and practices. We intend to
increase our expenditures in all areas in order to execute our business plan.
As a result, we expect to incur substantial additional losses. Although our
revenues have grown in recent periods, we may be unable to sustain such
growth. Therefore, you should not consider our historical growth indicative of
future revenue levels or operating results. We may never achieve profitability
or, if we do, we may not be able to sustain it. A more complete description of
these and other risks relating to our business is set forth under the caption
"Risk Factors."
   
Recent Development     
   
  On January 19, 1999, VeriSign announced selected consolidated results of
operations for the fourth quarter of 1998 and for the year ended December 31,
1998. Our revenues were $13.2 million for the fourth quarter of 1998, compared
to revenues of $5.0 million for the fourth quarter of 1997. Net loss for the
fourth quarter of 1998 was $2.5 million, or $0.11 per share, compared to a net
loss of $6.3 million, or $0.82 per share, for the fourth quarter of 1997. For
the full year of 1998, our revenues were $38.9 million, compared to revenues
of $13.4 million for 1997. Net loss for 1998 was $19.7 million, or $0.95 per
share, compared to a net loss in 1997 of $18.6 million, or $2.61 per share.
Net loss for the full year of 1998 includes special charges of $3.6 million.
Net loss for the fourth quarter of 1997 includes a special charge of $800,000,
and net loss for the full year of 1997 includes special charges of $2.8
million. See "--Results of Operations for the Nine-Month Periods--Costs and
Expenses--Special Charges" and "--Annual Results of Operations--Costs and
Expenses--Special Charges."     
 
Results of Operations for the Nine-Month Periods
 
  Revenues
 
  Revenues increased from $8.4 million in the first nine months of 1997 to
$25.7 million in the first nine months of 1998. The growth in revenues
resulted from increased sales of our Internet-based trust services,
particularly our website digital certificates and VeriSign OnSite services,
delivery of more training and services and higher sales of certain third-party
products. In the third quarter of 1997, we increased our per-unit prices for
digital certificate services by approximately 15%. During the first nine
months of 1998, we also completed certain work required under various
contracts and recognized the related portion of revenues.
 
  We adopted the American Institute of Certified Public Accountants' Statement
of Position (SOP) No. 97-2, Software Revenue Recognition, for software
transactions entered into beginning January 1, 1998. SOP No. 97-2 generally
requires revenue earned on software arrangements involving multiple elements
to be allocated to each element based on its relative fair value. The fair
value of the element must be based on objective evidence that is specific to
the vendor. If a vendor does not have objective evidence of the fair value of
all elements in a multiple-element arrangement, all revenue from the
arrangement must be deferred until such evidence exists or until all elements
have been delivered. The adoption of SOP No. 97-2 did not have a material
effect on our operating results.
 
 
                                      22
<PAGE>
 
  No customer accounted for 10% or more of revenues during the first nine
months of 1998. VISA International accounted for 12% of revenues for the first
nine months of 1997. Revenues of VeriSign Japan together with revenues from
other international customers accounted for 10% of revenues in the first nine
months of 1997 and 11% of revenues in the first nine months of 1998.
 
  Costs and Expenses
 
  Cost of Revenues. Cost of revenues consists primarily of costs related to
providing digital certificate enrollment and issuance services, customer
support and training, consulting and development services and costs of
facilities and computer and communications equipment used in such activities.
Cost of revenues also includes fees paid to third parties to verify digital
certificate applicants' identities, insurance premiums for our service
warranty plans and errors and omissions insurance and the cost of software
resold to customers.
 
  Cost of revenues increased from $6.2 million in the first nine months of
1997 to $13.5 million in the first nine months of 1998. The increase was due
to a number of factors. We hired more employees to support the additional
volume of digital certificates issued and to support SecureIT's security
consulting and training activities. The cost of our service warranty plan
increased partly because of greater volume and partly because this plan was
not in effect during a portion of the nine-month period of 1997. In addition,
we incurred increased expenses for access to third-party databases, higher
support charges for our external disaster recovery program and for the cost of
certain third-party software products resold to customers as part of network
security solution implementations.
 
  Certain of our services require greater personnel involvement and therefore
have higher costs than other services. As a result, we anticipate that cost of
revenues will vary for the remainder of 1998 and in 1999 depending on the mix
of services sold during each period.
 
  Sales and Marketing. Sales and marketing expenses consist primarily of costs
related to sales and marketing and practices and external affairs. These
expenses include salaries, sales commissions and other personnel-related
expenses, travel and related expenses, cost of computer and communications
equipment and support services, facilities costs, consulting fees and costs of
marketing programs.
 
  Sales and marketing expenses increased from $7.7 million in the first nine
months of 1997 to $16.4 million in the first nine months of 1998. The increase
is a direct result of the continued growth of our direct sales force and the
expansion of our efforts, particularly in lead and demand generation
activities. The growth and expansion of the SecureIT sales and marketing
organization also contributed to the increase in these expenses.
 
  We anticipate that sales and marketing expenses will continue to increase in
absolute dollars as we expand our direct sales force, hire additional
marketing personnel and increase our marketing and promotional activities both
in the U.S. and abroad.
 
  Research and Development. Research and development expenses consist
primarily of costs related to research and development personnel, including
salaries and other personnel-related expenses, consulting fees and the cost of
facilities, computer and communications equipment and support services used in
service and technology development.
 
  Research and development expenses increased from $3.6 million in the first
nine months of 1997 to $6.2 million in the first nine months of 1998 as a
result of our investments in the design, testing and deployment of, and
technical support for, our expanded Internet-based trust service offerings and
technology. The increase reflects the expansion of our engineering staff and
related costs required to support our continued emphasis on the development of
new services, as well as enhancing existing services. During 1998, we
continued to make significant investments in development of all of our
services, including those targeted for the service provider market.
 
 
                                      23
<PAGE>
 
  We believe that timely development of new and enhanced Internet-based trust
services and technology are necessary to remain competitive in the
marketplace. Accordingly, we intend to continue to recruit experienced
research and development personnel and to make other investments in research
and development. As a result, we expect that research and development expenses
will continue to increase in absolute dollars. To date, we have expensed all
research and development expenditures as incurred.
 
  General and Administrative. General and administrative expenses consist
primarily of salaries and other personnel-related expenses for our
administrative, finance and human resources personnel, facilities and computer
and communications equipment, support services and professional services fees.
 
  General and administrative expenses increased from $3.1 million in the first
nine months of 1997 to $5.8 million in the first nine months of 1998. The
increase was primarily due to increased staffing levels required to support
our expanded operations and to implement additional management information
systems and related procedures. In addition, in 1998 we incurred additional
costs related to being a public company, including investor relations programs
and professional services fees.
 
  We expect to continue to invest in a more comprehensive executive and
administrative infrastructure and to add additional facilities as required. As
a result, we anticipate that general and administrative expenses will continue
to increase in absolute dollars.
 
  Special Charges. In September 1996, VeriFone, Inc., which subsequently
became a wholly-owned subsidiary of Hewlett-Packard, filed a lawsuit against
VeriSign alleging, among other things, trademark infringement. In November
1997, VeriSign, Hewlett-Packard and VeriFone reached an agreement, under
which, among other things, we issued 250,000 shares of our common stock, which
were transferred to Hewlett-Packard, and VeriSign and VeriFone settled all
claims. The settlement amount was recorded in the third quarter of 1997 as a
$2.0 million charge to operations.
 
  In connection with our acquisition of SecureIT, we recorded a special charge
of $3.6 million to operating expenses in the third quarter of 1998. The
expenses included $2.4 million for direct and other merger-related costs
pertaining to the merger transaction. Merger transaction costs consisted
primarily of fees for investment bankers, attorneys, accountants, filing fees
and other related charges. The remaining $1.2 million related to stock-based
compensation charges in connection with the acceleration of certain
performance stock options held by SecureIT employees.
 
  Other Income
 
  Other income consists primarily of interest earned on our cash, cash
equivalents and short-term investments, less interest expense on bank
borrowings of VeriSign Japan and the effect of foreign currency transaction
gains and losses.
 
  Other income increased from $872,000 in the first nine months of 1997 to
$1.7 million in the first nine months of 1998. This increase is primarily due
to a higher cash and short-term investment base as a result of the proceeds
from our initial public offering on January 29, 1998.
 
  Provision for Income Taxes
 
  We have not recorded any provision for federal and California income taxes
for either of the nine-month periods because we have experienced net losses
since inception. See "--Annual Results of Operations--Provision for Income
Taxes."
 
  Minority Interest in Net Loss of Subsidiary
 
  Minority interest in the net losses of VeriSign Japan was $1.2 million in
the first nine months of 1997 and $950,000 in the first nine months of 1998.
The decrease was primarily due to increased revenues from VeriSign
 
                                      24
<PAGE>
 
Japan in the 1998 period as compared to the same period of the prior year.
VeriSign Japan is still in the early stage of operations and, therefore, we
expect that the minority interest in net loss of subsidiary will continue to
fluctuate in future periods.
 
Annual Results of Operations
 
  We began operations on April 12, 1995, which is also referred to as
"inception." The discussion below compares the period from April 12, 1995 to
December 31, 1995 (which is also referred to as "the inception period" or
"1995"), 1996 and 1997.
 
  Revenues
 
  Revenues were $382,000 in 1995, $1.4 million in 1996 and $13.4 million in
1997. Revenues from inception through 1996 were primarily derived from sales
of our Secure Server digital certificate services. The increase in revenues
from 1995 to 1996 was due primarily to increased market acceptance of Secure
Server digital certificate services and, to a lesser extent, SET digital
certificate services. The increase in revenues from 1996 to 1997 was due to
increased sales of Secure Server digital certificate services, increased
services revenues, including revenues from digital certificate service
agreements, and sales of certain third-party products. Revenues from
Individual digital certificates were nominal because substantially all
individual digital certificates were issued free of charge on a promotional
basis.
 
  VISA accounted for approximately 21% of our revenues in 1996 and 10% of
revenues in 1997. No other customer accounted for 10% or more of our revenues
during 1995, 1996 or 1997. Revenues of VeriSign Japan and from other
international customers accounted for less than 10% of revenues in the
inception period, 1996 and 1997.
 
  Costs and Expenses
 
  VeriSign's costs and expenses increased in 1996 compared to 1995 and again
in 1997 compared to 1996, primarily due to our overall growth. The total
number of our employees increased from 26 at December 31, 1995 to 210 at
December 31, 1997. In addition, we opened several new offices, increased our
sales and marketing and research and development efforts and expanded our
headquarters and secure data centers during these time periods.
 
  Cost of Revenues. Cost of revenues was $412,000 in 1995, $2.8 million in
1996 and $9.7 million in 1997. Cost of revenues was not material in 1995
because of our minimal revenues in that period. The increases in 1996 and 1997
were due to a number of factors. Facilities costs and related overhead costs
increased as we built our operations infrastructure. We hired more full-time
and temporary employees to support the additional volume of digital
certificates issued and to support SecureIT's security consulting and training
activities. We also incurred costs related to the introduction of new services
as well as the costs related to certain third-party software products that
were resold to our customers as part of network security solution
implementations. Expenses related to our errors and omissions insurance and
access to third-party databases also increased. In addition, during 1997, we
implemented our service warranty program and our disaster recovery program.
 
  Sales and Marketing. Sales and marketing expenses were $790,000 in 1995,
$4.9 million in 1996 and $11.8 million in 1997. The increase in sales and
marketing expenses from 1995 through 1996 and 1997 was primarily due to
increased headcount and increased expenditures for marketing programs. The
increase in 1997 also reflects the growth and expansion of the SecureIT sales
and marketing organization.
 
  Research and development. Research and development expenses were $642,000 in
1995, $2.1 million in 1996 and $5.3 million in 1997. Our continued investment
in the design, testing and deployment of, and technical support for, our
expanded services and technology caused research and development expenses to
increase in each period from 1995 to 1996 and 1997. The increase reflects the
expansion of our engineering staff and related costs required to support our
continued emphasis on developing new, and enhancing existing, services and
technology.
 
 
                                      25
<PAGE>
 
  General and administrative. General and administrative expenses were
$680,000 in 1995, $2.7 million in 1996 and $5.0 million in 1997. The increase
in general and administrative expenses from 1995 through 1996 and 1997 was
primarily a result of hiring additional staff to manage and support our
expanding operations.
 
  Special Charges. The settlement amount for the VeriFone litigation was
recorded in 1997 as a $2.0 million charge to operations.
 
  In November 1997 we entered into a preferred provider agreement with
Microsoft whereby we agreed to jointly develop, promote and distribute a
variety of client-based and server-based digital certificate solutions. Under
this agreement, we have been designated as the premier provider of digital
certificates for Microsoft customers. In connection with the agreement, we
issued 100,000 shares of our common stock to Microsoft and recorded an
$800,000 charge to operations.
 
  Other Income (Expense)
 
  We had other income of $148,000 in 1995, other expense of $67,000 in 1996
and other income of $1.2 million in 1997. The increase in other income in 1997
was due to interest earned on the cash proceeds of our November 1996 Series C
preferred stock financing.
 
  Provision for Income Taxes
 
  We have not recorded any provision for federal and state income taxes
because we have experienced net losses since inception. As of December 31,
1997, we had federal net operating loss carryforwards of approximately $26.9
million and state net operating loss carryforwards of approximately $27.1
million. If we are not able to use them, the federal net operating loss
carryforwards will expire in 2010 through 2014 and the state net operating
loss carryforwards will expire in 2003. The Tax Reform Act of 1986 imposes
substantial restrictions on the utilization of net operating losses and tax
credits in the event of a corporation's ownership change, as defined in the
Internal Revenue Code. Our ability to utilize net operating loss carryforwards
may be limited as a result of such an ownership change. We do not anticipate
that a material limitation on our ability to use our carryforwards and credits
will result from this offering.
 
  We have provided a full valuation allowance on our deferred tax asset
because of the uncertainty regarding its realization. Our accounting for
deferred taxes under Statement of Financial Accounting Standards No. 109
involves the evaluation of a number of factors concerning the realizability of
our deferred tax assets. In concluding that a full valuation allowance was
required, we considered such factors as our history of operating losses and
expected future losses and the nature of our deferred tax assets. Although our
operating plans assume taxable and operating income in future periods, our
evaluation of all the available evidence in assessing the realizability of the
deferred tax assets indicates that such plans were not considered sufficient
to overcome the available negative evidence. See Note 9 of Notes to
Consolidated Financial Statements.
 
  Minority Interest in Net Loss of Subsidiary
 
  Minority interest in the net losses of VeriSign Japan was $838,000 in 1996
and $1.5 million in 1997. The increase was due to the increased expenses
incurred in establishing and expanding the operations of VeriSign Japan prior
to the generation of significant revenues as well as to an increasing
percentage of VeriSign Japan's capital stock being held by minority
shareholders.
 
                                      26
<PAGE>
 
Selected Quarterly Operating Results
 
  The following table sets forth certain consolidated statement of operations
data for each quarter of 1997 and the first three quarters of 1998. This
information has been derived from our unaudited consolidated financial
statements, which, in management's opinion, have been prepared on the same
basis as the annual consolidated financial statements and include all
adjustments, consisting only of normal recurring adjustments, necessary for a
fair presentation of the information for the quarters presented. This
information should be read in conjunction with the Consolidated Financial
Statements and notes thereto included elsewhere in this prospectus. The
operating results for any quarter are not necessarily indicative of the
results for any future period.
 
<TABLE>
<CAPTION>
                                                 Three Months Ended
                          ---------------------------------------------------------------------
                          Mar. 31,  June 30,  Sept. 30, Dec. 31,  Mar. 31,  June 30,  Sept. 30,
                            1997      1997      1997      1997      1998      1998      1998
                          --------  --------  --------- --------  --------  --------  ---------
                                                   (In thousands)
<S>                       <C>       <C>       <C>       <C>       <C>       <C>       <C>
Revenues................  $ 1,590   $ 2,931    $ 3,839  $ 4,996   $ 6,662   $ 8,552    $10,505
                          -------   -------    -------  -------   -------   -------    -------
Costs and expenses:
 Cost of revenues.......    1,517     2,081      2,574    3,517     4,020     4,257      5,190
 Sales and marketing....    2,344     2,805      2,583    4,094     4,720     5,612      6,117
 Research and
  development...........    1,029     1,260      1,354    1,660     1,671     2,019      2,552
 General and
  administrative........    1,020       942      1,185    1,892     1,735     2,434      1,673
 Special charges........       --        --      2,000      800        --        --      3,555
                          -------   -------    -------  -------   -------   -------    -------
   Total costs and
    expenses............    5,910     7,088      9,696   11,963    12,146    14,322     19,087
                          -------   -------    -------  -------   -------   -------    -------
   Operating loss.......   (4,320)   (4,157)    (5,857)  (6,967)   (5,484)   (5,770)    (8,582)
Other income ...........      469       167        236      302       392       657        628
                          -------   -------    -------  -------   -------   -------    -------
   Loss before minority
    interest............   (3,851)   (3,990)    (5,621)  (6,665)   (5,092)   (5,113)    (7,954)
Minority interest in net
 loss of subsidiary.....      305       482        407      344       389       324        237
                          -------   -------    -------  -------   -------   -------    -------
   Net loss.............  $(3,546)  $(3,508)   $(5,214) $(6,321)  $(4,703)  $(4,789)   $(7,717)
                          =======   =======    =======  =======   =======   =======    =======
</TABLE>
 
  Revenues
 
  We have experienced quarter-to-quarter sequential growth in revenues since
our inception. These quarterly increases were due to increases in all revenue
areas, including our Internet-based trust services and certain third-party
software products sold to our customers as part of network security solution
implementations. The increase in revenues related to digital certificate
services has been primarily due to the increased number of digital
certificates sold. However, in the third quarter of 1997, we increased our
per-unit prices for digital certificate services by approximately 15%.
Revenues from contracts for our services have increased each quarter because
the number of contracts has increased. Revenues related to our own and certain
third-party software products have increased as the number and size of network
security implementations has increased.
 
  Costs and Expenses
 
  Cost of Revenues. Cost of revenues has increased each quarter as revenues
have increased. Certain of our services require greater personnel involvement
and therefore have higher costs than other services. As a result, cost of
revenues will fluctuate each quarter depending on the mix of services sold in
each quarter. The primary reasons for the increased cost of revenues on a
quarterly basis, other than increased revenues, are:
     
  . hiring additional employees, particularly for customer support and
    information systems and to support SecureIT's security consulting and
    training activities;     
     
  . increased expenses for access to third-party databases to verify digital
    certificate applicants' identities; and     
     
  . costs related to certain third-party software products that were resold
    to our customers as part of network security solution implementations.
        
                                      27
<PAGE>
 
  In addition, we implemented our service warranty program and began the
implementation of our disaster recovery program in the second quarter of 1997.
 
  Sales and Marketing. The quarterly increases in sales and marketing expenses
resulted primarily from building our sales and marketing organization. The
addition of sales and marketing personnel resulted in higher recruiting,
benefits, travel and facilities costs. In addition, during the second quarter
of 1997, additional expenses were incurred as we pursued strategic
relationships in the U.S. and abroad, increased our public relations
activities and channel development activities. The fourth quarter of 1997
reflects expenses related to the continued development and expansion of our
direct sales force and increased spending for new marketing programs.
 
  Research and Development. The quarterly increases in research and
development expenses were due primarily to increased personnel and related
costs to support the design, testing and deployment of, and technical support
for, our expanded Internet-based trust service offerings and technology.
 
  General and Administrative. In addition to building an administrative
infrastructure in the fourth quarter of 1997, we increased our allowance for
doubtful accounts commensurate with the growth in accounts receivable. The
1998 quarters reflect costs related to increased staffing levels required to
support our expanded operations in the U.S. and abroad, costs to implement
additional management information systems and related procedures and the costs
of being a public company.
 
  Special Charges. Charges in the third and fourth quarters of 1997 and the
third quarter of 1998 are discussed above under "--Results of Operations--
Costs and Expenses--Special Charges."
 
  Our operating results have varied on a quarterly basis and may fluctuate
significantly in the future as a result of many factors outside of our
control. Period-to-period comparisons of our operating results should not be
relied upon as an indication of future performance. A more complete
description of factors affecting quarterly operating results is set forth in
"Risk Factors--Our Quarterly Operating Results May Fluctuate; Our Future
Revenue and Profitability Are Uncertain."
 
Year 2000 Issues
 
  Background of Year 2000 Issues
 
  Many currently-installed computer and communications systems and software
products are unable to distinguish between twentieth century dates and twenty-
first century dates. This situation could result in system failures or
miscalculations causing disruptions in the operations of any business,
including, among other things, a temporary inability to process transactions,
send invoices or engage in similar normal business activities. As a result,
many companies' software and computer and communications systems may need to
be upgraded or replaced to comply with such "Year 2000" requirements.
 
  Our State of Readiness
 
  Our business depends on the operation of numerous systems that could
potentially be impacted by Year 2000 related problems. The systems include:
computer and communications hardware and software systems used to deliver our
Internet-based trust services (including our proprietary software systems as
well as software supplied by third parties); communications networks such as
the Internet and private intranets; the internal systems of our customers and
suppliers; digital certificate services sold to customers; the computer and
communications hardware and software systems we use internally in the
management of our business; and non-information technology systems and
services we use to manage our business, such as telephone, security and
building management systems.
 
  Based on an analysis of all systems potentially impacted by conducting
business in the year 2000 and beyond, we are pursuing a phased approach to
making such systems, and accordingly our operations, ready for the year 2000.
Beyond awareness of the issues and scope of systems involved, the phases of
activities in progress
 
                                      28
<PAGE>
 
include: an assessment of specific underlying computer and communications
systems, programs and/or hardware; remediation or replacement of Year 2000
non-compliant technology; validation and testing of technologically-compliant
Year 2000 solutions; and implementation of Year 2000 compliant systems. The
table below provides the status and timing of such phased activities.
 
<TABLE>
<CAPTION>
                                                                                    Targeted
    Impacted Systems                              Status                         Implementation
    ----------------                              ------                         --------------
<S>                       <C>                                                    <C>
Internet-based trust
 services sold to         Digital certificates tested and available for customer
 customers..............  trial, testing and implementation completed...........   Completed
Non-information
 technology systems and   Systems upgraded or replaced as appropriate,
 services...............  testing and implementation completed..................   Completed
Hardware and software
 systems used to deliver  Assessment completed, remediation underway,
 services...............  conducting validation and testing.....................     Q1 1999
Communication networks
 used to provide          Assessment completed, conducting validation
 services...............  and testing...........................................     Q1 1999
Operability with
 internal systems of
 customers and            Assessment completed, conducting validation
 suppliers..............  and testing...........................................     Q1 1999
Hardware and software
 systems used to manage   Assessment completed, remediation underway,
 VeriSign's business....  conducting validation and testing.....................     Q1 1999
</TABLE>
 
  As a trusted third-party CA providing, among other services, digital
certificates and related lifecycle services, we depend on the hardware and
software products from third parties used to deliver such Internet-based trust
services. Inoperability of such services due to Year 2000 issues could harm
our business. We have completed our assessment of the underlying systems and
hardware. Certain components have been replaced and we are conducting
validation and testing.
 
  Costs to Address Year 2000 Issues
 
  We expect that costs directly related to Year 2000 issues will not exceed
approximately $500,000 for both costs incurred to date and future costs,
including cases where non-compliant information technology systems have been
or need to be replaced. We would have incurred the replacement cost of non-
information technology systems regardless of the Year 2000 issue due to
technology obsolescence and/or our growth. We have and will continue to
expense all costs arising from Year 2000 issues, funding them from working
capital.
 
  We do not believe that future expenditures to upgrade internal systems and
applications will materially harm our business. In addition, while we do not
know the potential costs of redeployment of personnel and any delays in
implementing other projects, we anticipate the costs to be immaterial and we
expect minimal adverse impact to the business.
 
  Risks of the Year 2000 Issues
 
  We believe our digital certificates and Internet-based trust services are
Year 2000 compliant; however, success of our Year 2000 compliance efforts may
depend on the success of our customers in dealing with Year 2000 issues. We
sell our Internet-based trust services to companies in a variety of industries
each with different issues and Year 2000 compliance challenges. Customer
difficulties with Year 2000 issues could interfere with the use of Year 2000
compliant digital certificates which might require us to devote additional
resources to resolve underlying problems. If problems exists within our
digital certificate technology as it relates to customers' management systems
and applications, our business, financial condition and results of operations
could be materially harmed. This risk is minimized by our current offering of
Year 2000 compliant test digital certificates which can validate the Year 2000
operation of customer applications and systems. However, there is no method to
determine which customers will validate their applications and systems for
Year 2000 compliance with our technology.
 
                                      29
<PAGE>
 
  Furthermore, the purchasing patterns of these customers or potential
customers may be affected by Year 2000 issues as companies expend significant
resources to become Year 2000 compliant. The costs of becoming Year 2000
compliant for current or potential customers may result in fewer funds being
available to purchase and implement our Internet-based trust services.
 
  Contingency Plans
 
  With the assistance of an independent consulting firm, we developed a Year
2000 project plan template. Of the template's Year 2000 recommendations,
beyond those already identified through our internal review, no additional
work was required. We have not yet developed a contingency plan for handling
Year 2000 problems that are not detected and corrected prior to their
occurrence. However, we have a comprehensive business resumption plan in the
event of a failure of our digital certificate services delivered from our
secure data centers. Upon completion of testing and implementation activities,
we will be able to assess additional areas requiring contingency planning and
we expect to institute appropriate contingency planning at that time. Any
failure to address any unforeseen Year 2000 issue could harm our business.
 
Liquidity and Capital Resources
 
  Prior to our initial public offering, we financed our operations primarily
through private sales of equity securities, raising approximately $46.1
million. Our initial public offering, which closed in February 1998, yielded
net proceeds of approximately $43.7 million. At September 30, 1998, our
principal source of liquidity was $42.5 million of cash, cash equivalents and
short-term investments, consisting principally of commercial paper, medium
term notes, foreign government bonds, corporate bonds and money market funds.
We also have an equipment loan agreement under which we may borrow up to $3.0
million for purchases of equipment. This equipment loan agreement expires on
March 31, 1999. Any amounts borrowed under this equipment loan agreement would
bear interest at the rate of 7.5% per annum and would be secured by the
equipment purchased with the loan proceeds. In the event that we borrow under
this loan agreement, we would be obligated to issue to the lender a warrant to
purchase 17,500 shares of our common stock. We have no current plans to borrow
any amounts under this loan agreement.
 
  We have had significant negative cash flows from operating activities in
each period to date. Net cash used in operating activities was $1.5 million in
1995, $6.0 million in 1996, $12.8 million in 1997 and $11.6 million in the
first nine months of 1998. Net cash used in operating activities in each of
these periods was primarily the result of net losses and increases in accounts
receivable. These amounts were partially offset in all periods by non-cash
charges and increases in accounts payable, accrued liabilities and deferred
revenue.
 
  On July 6, 1998, we issued approximately 1,666,000 shares of our common
stock in exchange for all of the outstanding common stock of SecureIT, a
provider of Internet security products and services. The business combination
was accounted for as a pooling-of-interests, and we incurred approximately
$3.6 million for direct and other merger-related costs pertaining to the
merger transaction and certain stock-based compensation charges.
 
  Net cash used in investing activities was $1.0 million in 1995, $4.4 million
in 1996, $15.3 million in 1997 and $20.0 million in the first nine months of
1998. Net cash used in investing activities in these periods was primarily the
result of capital expenditures for computer and communications equipment,
purchased software, office equipment, furniture, fixtures and leasehold
improvements. In addition, cash used in investing activities included net
purchases of short-term investments of $8.0 million in 1997 and $16.4 million
in the first nine months of 1998. Capital expenditures for property and
equipment totaled $1.0 million in 1995, $4.2 million in 1996, $6.8 million in
1997 and $3.5 million in the first nine months of 1998. Our planned capital
expenditures for the final three months of 1998 are approximately $1.5 million
and for 1999 are approximately $5 million to $7 million, primarily for
computer and communications equipment and leasehold improvements. As of
September 30, 1998, we also had commitments under noncancelable operating
leases for our facilities for various terms through 2005. See Note 10 of Notes
to Consolidated Financial Statements.
 
                                      30
<PAGE>
 
  Net cash provided by financing activities was $5.3 million in 1995,
$37.8 million in 1996, $3.1 million in 1997 and $44.8 million in the first
nine months of 1998. In 1995 and 1996, cash was provided primarily from net
proceeds from the sale of preferred stock. In addition, net cash provided by
financing activities of VeriSign Japan was $4.2 million in 1996 and $2.5
million in 1997, resulting from the sale of capital stock to minority
investors and from the proceeds of bank borrowings. In the first nine months
of 1998, net cash provided by financing activities included $43.7 million from
our initial public offering.
 
  We believe that the net proceeds from this offering, together with existing
cash, cash equivalents and short-term investments, will be sufficient to meet
our working capital and capital expenditure requirements for the foreseeable
future. However, at some time, we may need to raise additional funds through
public or private financing, strategic relationships or other arrangements.
Such additional funding, if needed, might not be available on terms attractive
to us, or at all. If we have to enter into strategic relationships to raise
additional funds we might be required to relinquish rights to certain of our
technologies. Our failure to raise capital when needed could materially harm
our business. If additional funds are raised through the issuance of equity
securities, the percentage of our stock owned by our then-current stockholders
would be reduced. Furthermore, such equity securities might have rights,
preferences or privileges senior to those of our common stock.
 
Recent Accounting Pronouncements
 
  In March 1998, the AICPA issued SOP No. 98-1, Accounting for the Costs of
Computer Software Developed or Obtained for Internal Use. SOP No. 98-1
requires entities to capitalize certain costs related to internal-use software
once certain criteria have been met. We expect that the adoption of
SOP No. 98-1 will not have a material impact on our financial position,
results of operations or cash flows. We will be required to implement SOP No.
98-1 for the year ending December 31, 1999.
 
  In April 1998, the AICPA issued SOP No. 98-5, Reporting on the Costs of
Start-Up Activities. SOP No. 98-5 requires that all start-up costs related to
new operations must be expensed as incurred. In addition, all start-up costs
that were capitalized in the past must be written off when SOP No. 98-5 is
adopted. We expect that the adoption of SOP No. 98-5 will not have a material
impact on our financial position, results of operations or cash flows. We will
be required to implement SOP No. 98-5 for the year ending December 31, 1999.
 
  In June 1998, the Financial Accounting Standards Board issued SFAS No. 133,
Accounting for Derivative Instruments and Hedging Activities. SFAS No. 133
establishes methods for derivative financial instruments and hedging
activities related to those instruments, as well as other hedging activities.
Because we do not currently hold any derivative instruments and do not engage
in hedging activities, we expect that the adoption of SFAS No. 133 will not
have a material impact on our financial position, results of operations or
cash flows. We will be required to implement SFAS No 133 for the year ending
December 31, 2000.
 
                                      31
<PAGE>
 
                                   BUSINESS
 
  VeriSign is the leading provider of Internet-based trust services needed by
websites, enterprises and individuals to conduct trusted and secure electronic
commerce and communications over IP networks. We have established strategic
relationships with industry leaders, including AT&T, BT, Cisco, Microsoft,
Netscape, Network Associates, RSA, Security Dynamics and VISA, to enable
widespread utilization of our digital certificate services and to assure their
interoperability with a wide variety of applications and network equipment. We
have used our secure online infrastructure to issue over 100,000 of our
website digital certificates and over 3.5 million of our digital certificates
for individuals. We believe that we have issued more digital certificates than
any other company in the world. Our Website Digital Certificate services are
used by over 400 of the Fortune 500 companies and all of the top 25 electronic
commerce websites as listed by Jupiter Communications. We also offer the
VeriSign OnSite service, which allows an organization to leverage our trusted
service infrastructure to develop and deploy customized digital certificate
services for use by its employees, customers and business partners. Over 300
enterprises have subscribed to the OnSite service since its introduction in
November 1997, including Bank of America, Hewlett-Packard, the Internal
Revenue Service, Kodak, Sumitomo Bank, Texas Instruments and USWest. We market
our Internet-based trust services worldwide through multiple distribution
channels, including the Internet, direct sales, telesales, VARs, systems
integrators and our affiliates.
 
Industry Background
 
  Over the last three years, the Internet has become a widely-accepted
platform for many consumer-oriented transactions such as retail purchases,
auctions, online banking and brokerage. Companies such as Amazon.com, Bank of
America, Cisco, Dell, eBay, E*Trade and Charles Schwab have enjoyed dramatic
growth in their online customer bases and revenues as consumers have executed
an increasing number of their transactions over the Internet. The Internet's
ease of use, 24-hour availability, global reach and ability to simplify
product and vendor comparisons is fueling this growth. A recent industry
report from International Data Corporation (IDC) estimates that the number of
Internet users will grow from 97 million in 1998 to 320 million by 2002 with
commensurate growth in electronic commerce from $32 billion to $426 billion
over that same period.
 
  Consumer concerns about the trustworthiness and security of the Internet
have been one of the main impediments to even faster growth of electronic
commerce and communications. Many of these concerns are caused by the
Internet's lack of physical signposts that have traditionally created trust in
everyday commerce such as face-to-face interaction, the brick and mortar of
commercial buildings and officially recognized credentials such as a business
license or a credit card. Without these signposts, consumers have worried
about the potential for merchant impersonation and fraud or the theft of
personal data, such as credit card or bank account information, as it is
transmitted over the Internet. In order for electronic commerce to overcome
these concerns, the Internet needs a cost-effective solution that can give
consumers the same sense of trust that they have when conducting commerce in
the physical world. In a manner similar to the use of physical credentials,
this solution must irrefutably verify the identity of a business over the
Internet and ensure that the information being transmitted between the
consumer and the business is kept private.
 
  Digital certificates can provide these authentication and privacy
capabilities for consumers and businesses conducting commerce over the
Internet. Based on the principles of public key cryptography, digital
certificates are specially prepared software files that act as electronic
credentials and are unique to an individual or entity. When installed on a
website's server, a digital certificate can work with the industry standard
Secure Sockets Layer, or SSL, protocol now supported in virtually all web
browser and server applications, to confirm the identity of the business that
operates the website and to enable encryption of all information transmitted
between the website and the consumer. Website digital certificates have
already become the standard for establishing trust in retail transactions over
the Internet with more than 100,000 issued to merchants, banks and other
organizations over the last three years. There are now more than 3 million web
addresses registered in Network Solutions' "dot-com" domain name system, with
more than 1.3 million new addresses added in the first nine months of 1998.
Therefore, we believe that the need for digital certificates for website
authentication is vast.
 
                                      32
<PAGE>
 
  Businesses have also begun to use IP networks for advanced interactions with
their employees, business partners and customers. As a result, there is a need
to use digital certificates as electronic credentials to verify the identity,
authority and privileges of those individuals and entities before allowing
them to access confidential information or transact new business. For example,
enterprises can issue digital certificates to individuals in order to enable
(1) employees to access privileged information on an intranet or a virtual
private network, or VPN, (2) trading partners to access an extranet for
business-to-business electronic commerce transactions or (3) customers to
access confidential account information. In addition to authentication and
privacy, many of these commercial applications also require a verifiable way
to prove that a given transaction or communication occurred. Digital
certificates are becoming the preferred solution for this need through their
capability to support the creation and use of "digital signatures." These
digital signatures are analogous to physical signatures and are viewed as a
mechanism for supporting non-repudiation in electronic commerce and
communications. This capability further strengthens the value of digital
certificates in supporting electronic commerce and communications over IP
networks.
 
  Digital certificates provide the technological foundation of trust for
electronic commerce and communications on the Internet. There are now hundreds
of software applications and network management devices that support digital
certificates for authentication, privacy and non-repudiation. Digital
certificates are also enabled in e-mail applications, electronic payment
applications, security products and hardware devices such as routers, switches
and smart cards. Some of the industry leaders that have enabled digital
certificates in their products include 3Com, CheckPoint, Cisco, GemPlus, IBM,
Lotus, Microsoft, Netscape, Network Associates, Security Dynamics and
VeriFone. Given the cost-effective, convenient and robust nature of digital
certificates and the wide variety of software applications and network
equipment that support digital certificates, many individuals and
organizations may have multiple digital certificates issued to them. Each
digital certificate would validate their identity and authority for each of
the digital relationships they maintain (e.g. employee, customer, citizen,
account holder, etc.). As a result, there could be a need over time for
hundreds of millions of digital certificates to be issued and managed for
individuals and business entities.
 
  Digital certificates are issued and managed by CAs. The level of trust that
can be associated with a digital certificate is ultimately tied to the
technology, infrastructure and practices used by the CA to prepare, issue and
manage the digital certificate over its lifecycle. CAs generally are divided
into two categories--public and private. Public CAs are independent third
parties that perform the appropriate due diligence to ensure that a digital
certificate subscriber's identity is valid. For example, a public CA may issue
digital certificates for website authentication after validating the
authenticity of the business and the ownership of its Internet domain name.
Private CAs generally issue digital certificates to closed communities of
users. For example, an enterprise may issue, or have issued on its behalf,
digital certificates which authenticate the authority and privilege of its
employees, business partners or customers for use in intranet, extranet and
electronic commerce applications.
 
  In order to become a CA, an entity must have a combination of technology,
infrastructure and digital certificate management practices. Technology
requirements include knowledge and applied use of public key cryptography,
digital signatures, relational database technology, electronic messaging and
web-based programming techniques. In addition, a CA must provide full support
for the lifecycle of digital certificate services, including subscriber
enrollment, renewal, revocation and directory services. Infrastructure
requirements include computer systems, networking equipment,
telecommunications and Internet access services, 24 hour, 7 days per week
availability, customer support and substantial physical and network security
protections. Depending on the volume of digital certificates needed and the
critical nature of their use, the CA infrastructure may also need to support
high levels of scalability and redundancy, as well as disaster recovery. A
CA's requirements for the policies and practices that it uses are highly
dependent on the intended use of the digital certificates that it issues and
may include personnel screening, published operating and security policies,
periodic external and internal audits, data archiving and conformance to one
or more industry-recognized operating standards.
 
  For organizations that need to support large quantities of digital
certificates, doing so themselves can be extremely expensive, requiring
substantial human resources and taking years and millions of dollars to
 
                                      33
<PAGE>
 
implement. As a result, enterprises and other organizations need a better
solution for digital certificate deployment. The ideal solution would be a
complete CA service offering that could provide businesses with a scalable and
reliable CA utility to support all of their digital certificate needs
including website, intranet, extranet, VPN and electronic commerce
authentication. Such a service would provide significant advantages over an
enterprise developing and implementing its own CA service. These advantages
include faster time-to-market for digital certificate-protected services,
lower start-up and on-going costs of ownership of the CA solution, fewer
internal personnel requirements and higher overall reliability of the CA
service. In order to support the hundreds of millions of digital certificates
that may be issued globally by the many enterprises it would need to support,
the CA service provider would need to deploy and operate a robust
infrastructure, with extremely high availability, scalability, security and
performance. Given the mission critical nature of the technology and its
complexity, the service provider would also need to offer comprehensive design
and customization services, as well as training and ongoing support.
 
The VeriSign Solution
 
  VeriSign is the leading provider of Internet-based trust services needed by
websites, enterprises and individuals to conduct trusted and secure electronic
commerce and communications over IP networks. VeriSign provides both public
and private CA services to organizations needing digital certificates for
website authentication, intranet and extranet access control, electronic
commerce services and VPN connections. These services are delivered over the
Internet from secure data centers that are operated by VeriSign and its
network of global affiliates, which includes as BT, CertPlus (a joint venture
among France Telecom, Gemplus and Matra Hautes Technologies) and Acer HiTrust
in Taiwan. We have used our secure online infrastructure to issue over 100,000
of our website digital certificates and over 3.5 million of our digital
certificates for individuals. We believe that we have issued more digital
certificates than any other company in the world. Our Website Digital
Certificate services are used by over 400 of the Fortune 500 companies and all
of the top 25 electronic commerce websites as listed by Jupiter
Communications. We also offer the VeriSign OnSite service, which allows an
organization to leverage our trusted service infrastructure to develop and
deploy customized digital certificate services for use by its employees,
customers and business partners. Over 300 enterprises have subscribed to the
OnSite service since its introduction in November 1997, including Bank of
America, Hewlett-Packard, the Internal Revenue Service, Kodak, Sumitomo Bank,
Texas Instruments and US West.
 
  As the leading provider of Internet-based trust services, we have
established strategic relationships with industry leaders, including AT&T, BT,
Cisco, Microsoft, Netscape, Network Associates, RSA, Security Dynamics and
VISA, to enable the widespread utilization of our digital certificate services
and to assure their interoperability with a wide variety of applications and
network equipment. As a result, VeriSign services can be utilized with a wide
variety of software applications and network devices including millions of
deployed copies of Microsoft and Netscape browsers and tens of thousands of
copies of popular web servers, as well as network management devices such as
Cisco routers and 3Com switches. In addition, both Microsoft and Netscape have
integrated enrollment for our digital certificates into the registration
process for their web browsers and prominently feature VeriSign and our
digital certificate services in certain of their products and online service
offerings.
 
  VeriSign has developed and deployed proprietary software, a scalable systems
infrastructure and trusted operating practices that have enabled us to provide
a CA service platform designed for the rapid deployment of large volumes of
digital certificates and the ongoing management of such digital certificates
throughout their lifecycles. These components include:
 
  . Our Modular Software Platform. We have designed our proprietary
    WorldTrust platform to provide the scalability necessary to support the
    issuance and management of millions of digital certificates for distinct
    communities ranging from individual corporations to the entire population
    of Internet users. The WorldTrust platform automates many of the
    processes for digital certificate issuance and lifecycle
 
                                      34
<PAGE>
 
    management, including subscriber enrollment, authentication and
    administration services. This software platform is also distributable over
    one or many computer systems to enhance scalability and redundancy while
    allowing certain functions of digital certificate issuance and lifecycle
    management to be deployed at customer or affiliate locations. In all
    configurations, the WorldTrust platform maintains a secure and reliable link
    to VeriSign's data centers for digital certificate processing.
 
  . Our Highly Reliable and Secure Operations. Our secure data centers, which
    are located in Mountain View, California and Kawasaki, Japan, as well as
    our international affiliates located in the U.K., France, Taiwan and
    South Africa, operate on a 24 hour, 7 days per week basis and support all
    aspects of issuance and management of our digital certificate services.
    Through the use of state-of-the-art computer, telecommunications,
    networking and security equipment, our data centers are designed to
    provide the high levels of availability, security and scalability
    necessary to meet the needs of customers for high volume digital
    certificate issuance and lifecycle management.
 
  . Our Comprehensive Security and Trust Practices. We have been instrumental
    in defining comprehensive, industry-endorsed practices and procedures for
    the legal and business frameworks in which digital certificate
    relationships are established, as well as the physical security and
    controls that are essential to operate secure, large-scale digital
    certificate management operations. We believe that these practices and
    procedures are a critical component to the creation of a digital
    certificate services infrastructure.
 
Strategy
 
  As the leading provider of Internet-based trust services, VeriSign's
objective is to enable secure electronic commerce and communications through a
global trusted online services infrastructure. Our strategy to achieve this
objective includes the following key elements:
 
  . Leverage Our Leadership Position to Drive Market Penetration. We believe
    that VeriSign has become the leading provider of Internet-based trust
    services by being the first to market with a variety of digital
    certificate services for consumers, websites, enterprises and Internet-
    based service providers. We have built key strategic relationships with
    industry leaders, issued more digital certificates to a broader base of
    customers than any other company and enabled the interoperability of our
    digital certificates in a broad variety of Internet software applications
    and networking and security hardware. We have invested significant
    resources in developing our comprehensive trust infrastructure. We intend
    to leverage this leadership position to drive further adoption and
    deployment of our digital certificate services across industries such as
    telecommunications, financial services, healthcare, government and
    manufacturing. In addition, we intend to maintain our first-to-market
    position by applying our knowledge and experience to new services that
    will leverage our trusted infrastructure and which we believe will have
    significant market potential.
 
  . Leverage and Expand Our Strategic Relationships with Industry Leaders. We
    have established strategic relationships with industry leaders. We
    believe that these relationships, as well as others that we intend to
    pursue, will enable the widespread deployment of our Internet-based trust
    services by allowing us to capitalize on the brand recognition and broad
    customer bases of such strategic partners. For example, most Microsoft
    and Netscape browsers and certain Cisco routers are enabled to operate
    with our digital certificate services and each company prominently
    features VeriSign and our digital certificate services in their sales and
    marketing efforts. We believe that these types of relationships
    significantly enhance market awareness of VeriSign and provide a powerful
    endorsement of our digital certificate services. Certain of our strategic
    relationships also involve joint marketing activities which enhance our
    ability to target large customers and expand overall brand awareness. We
    intend to pursue additional strategic relationships that we believe will
    enhance the marketing and distribution of our digital certificate
    services.
 
  . Maintain Our Leadership in Technology, Infrastructure and Practices. We
    have developed technical, operational and procedural expertise for the
    widespread implementation of secure digital certificate solutions. We
    intend to continue to enhance our technology, infrastructure and
    distributed product architecture to provide digital certificate solutions
    for a variety of industries. This includes our recently
 
                                      35
<PAGE>
 
    released solutions targeted at major electronic commerce and communication
    service providers with extremely high volume digital certificate issuance
    requirements. In order to ensure the alignment of our technology with
    emerging trends, we actively participate in industry consortia, standards-
    setting organizations and other trade groups. In addition, we are
    continually enhancing our internal "best practices" and controls to maintain
    the physical security of our facilities, ensure quality in the execution of
    our operations, verify the quality and consistency of our services and
    promote the global acceptance of our digital certificate solutions.
 
  . Continue to Build the VeriSign Brand. We will continue to promote the
    VeriSign brand as synonymous with trusted and secure electronic commerce
    and communications over IP networks. In order to accelerate the
    acceptance and penetration of our Internet-based trust services, we have
    developed joint marketing relationships with brand leaders and intend to
    pursue additional relationships with entities whose brands are well known
    and widely respected. We also utilize a variety of marketing programs to
    promote market awareness of VeriSign and the VeriSign brand.
 
  . Expand Our Global Marketing and Distribution. We will continue to expand
    our global marketing and distribution efforts to address the range of
    markets and applications for Internet-based trust services. We intend to
    add direct sales personnel and expand indirect channels, both in the U.S.
    and abroad. We have leveraged our technology infrastructure to establish
    digital certificate processing or service centers to date in France,
    Japan, South Africa, Taiwan and the U.K. We have recently entered into an
    agreement to establish an additional center in Germany. We are
    aggressively pursuing additional international opportunities throughout
    Europe, Asia and Latin America. We believe that this strategy affords the
    opportunity to create a global VeriSign Trust Network of digital
    certificate service providers operating under common technology,
    operations and legal practices to provide the standard for global
    interoperability.
 
Trust Services
 
  VeriSign's Internet-based trust services are built upon its proprietary
WorldTrust software platform, scalable operations infrastructure and
comprehensive security and trust practices. Our secure data centers, designed
to provide carrier-class reliability with advanced security procedures, allow
the issuance and management of millions of digital certificates. Furthermore,
because we have worked with industry leaders to embed our digital certificate
interface technology into a wide range of software applications and network
equipment, such as Netscape and Microsoft browsers and servers and Cisco
routers, our services are interoperable with a wide range of IP-based
applications. By providing a trusted platform for commerce and communications,
we are able to offer services to customers with a wide range of needs. Our
service offerings are targeted towards three primary areas: Website Digital
Certificate services, Enterprise Digital Certificate services and VeriSign
Affiliate Certificate services.
 
  Website Digital Certificate Services
 
  VeriSign's family of Website Digital Certificate services allows
organizations to implement and operate secure websites that utilize the SSL
protocol to establish their identity to customers and other websites during
electronic commerce transactions and communications over the Internet. Prior
to issuing a digital certificate for a website's server, we establish the
authenticity of the website through a series of background checks, including
corroborating an organization's authority to do business under a given name
and their authority to operate a server with a specific domain name or URL.
These practices protect organizations against another entity impersonating
their identity and allow online visitors and customers to conduct private
transactions and communications. Without a digital certificate installed on
the website server the SSL protocol cannot be utilized.
 
  Our Website Digital Certificate services are utilized by a broad range of
merchant, financial and government websites as well as for intranet
applications. We currently offer several distinct versions of our website
digital certificate services, each differentiated by the target application of
the server that hosts the digital certificate.
 
 
                                      36
<PAGE>
 
  .  Secure Server digital certificates constitute the core service offering
     and enable websites to implement basic SSL security features between
     their sites and individual end-user browsers.
 
  .  Global Server digital certificates allow U.S. corporations and certain
     global financial services enterprises to offer stronger 128-bit
     encrypted SSL sessions between their websites and specially configured
     end-user browsers from Netscape and Microsoft.
 
  .  Financial Server digital certificates are used by financial institutions
     for authentication of their websites and to enable the secure exchange
     of data between these organizations and home banking, brokerage or
     insurance customers.
 
  .  EDI Server digital certificates are designed for organizations or
     individuals who participate in large online trading networks, support a
     variety of Electronic Data Interchange (EDI) standards and potentially
     require each transaction to be digitally signed to ensure non-
     repudiation.
 
  .  Content Signing digital certificates enable content providers,
     publishers and vendors to digitally sign their content or Internet
     subscription "channels" in order to ensure authenticity and integrity of
     the content delivered to end-users.
 
  Our Website Digital Certificate services are offered on an annual
subscription basis for prices between $250 and $1,200 per server per year,
depending on the version of digital certificate requested and the overall
volume of website digital certificates used by the customer. Customers can
subscribe to the Website Digital Certificate services through the VeriSign
website, through selected international service providers or through
VeriSign's Enterprise Digital Certificate services.
 
  Enterprise Digital Certificate Services
 
  VeriSign's Enterprise Digital Certificate services, sold predominantly under
the VeriSign OnSite brand, are tailored to meet the specific needs of
corporations, financial institutions, government agencies and other
organizations that wish to issue digital certificates to employees, customers,
citizens or trading partners. Our OnSite service is designed to support a wide
range of digital certificate needs for both small and large user communities.
OnSite can be used by customers to provide digital certificates for a variety
of applications, including: controlling access to sensitive data and account
information, enabling digitally-signed e-mail, creating an online electronic
trading community, managing supply chain interaction or facilitating and
protecting online credit card transactions. The OnSite service is designed to
offer customers ease of use at a low initial investment combined with broad
flexibility and scalability. OnSite services vary based on the nature and
complexity of the application and the degree of control customers desire to
maintain.
 
  To expand and complement OnSite, VeriSign's professional services group
employs experts in digital certificate architecture and application
integration. Our professional services group provides a variety of design,
development and implementation services. These services include integration
with existing applications and databases, consulting on policies and
procedures related to the management and deployment of digital certificates,
training classes on the latest developments in security technology and the
selection of enabled software and hardware to complement a digital certificate
solution.
 
  The OnSite service is offered as an annual subscription service with pricing
dependent upon the number of users to be supported, the complexity of the
applications and the number of additional services provided. Pricing typically
ranges from $10,000 to $500,000 per year. Customers can subscribe to the
OnSite service through the VeriSign website, the direct sales force, selected
international service providers or system integrators.
 
  VeriSign Affiliate Certificate Services
 
  VeriSign Affiliate Certificate Services are targeted at a wide variety of
organizations that provide large-scale electronic commerce and communications
services over IP networks. Examples include telecommunications companies,
Internet Service Providers, or ISPs, financial and other professional services
firms and businesses
 
                                      37
<PAGE>
 
that operate Internet-based "communities of interest," such as a web portal.
These companies typically desire to offer digital certificate services to
their customers under either the VeriSign brand or a co-branding relationship.
In many cases, these digital certificate services are integrated with other
value-added services offered by the organization. For example, an ISP may
offer website digital certificates in conjunction with its website hosting
services for small and medium size businesses, while a community of interest
operator may offer digital certificates to each member of the community in
order to support user authentication and secure messaging services. VeriSign
designates these types of organizations "VeriSign Affiliates" and provides
them with a combination of technology, support and marketing services to
facilitate their initial deployment and on-going delivery of digital
certificate services.
 
  VeriSign Affiliate Certificate Services are delivered through either the
VeriSign Service Center or VeriSign Processing Center offerings. Both
offerings are based on the WorldTrust software platform and enable a licensed
VeriSign Affiliate to offer one or more types of digital certificate services.
 
    VeriSign Service Center. The VeriSign Service Center provides a VeriSign
  Affiliate with all of the capabilities needed to perform subscriber
  enrollment and authentication, digital certificate issuance, directory
  hosting, customer support, billing integration and report generation from
  within their facilities while leveraging VeriSign's secure data centers for
  back-end processing.
 
    VeriSign Processing Center. The VeriSign Processing Center provides a
  VeriSign Affiliate with all of the capabilities of the Service Center plus
  the WorldTrust modules required to perform all certificate processing
  functions from within their own secure data center.
 
  VeriSign also provides each VeriSign Affiliate with the appropriate business
readiness services to facilitate the efficient and timely roll-out of their
digital certificate offerings. These readiness services may include Service or
Processing Center installation and integration services, facility and network
design consulting, technical and customer support documentation and training,
sales and marketing support, operating practice templates and local market
customization.
 
  VeriSign Affiliates that agree to conform to certain standards are also
offered membership in the global VeriSign Trust Network, an international
network of digital certificate service providers that operate with common
technology, infrastructure and practices to enable digital certificate
interoperability on a worldwide basis. Current VeriSign Trust Network members
include BT in the U.K., CertPlus in France, Acer HiTrust in Taiwan, VeriSign
Japan in Japan, and the South African Certification Authority (SACA) in South
Africa. VeriSign has also recently entered into a similar agreement with an
organization in Germany.
 
  VeriSign Affiliates typically enter into a technology licensing and revenue
sharing agreement with VeriSign whereby VeriSign receives up-front licensing
fees for the Service Center or Processing Center technology, as well as
ongoing royalties for each digital certificate issued by the VeriSign
Affiliate. Initial licensing fees typically range from $250,000 to $2 million,
and royalties can range from 20% to 50% of the net revenue received by the
VeriSign Affiliate for each digital certificate.
 
                                      38
<PAGE>
 
Customers and Markets
 
  VeriSign has a broad customer base from a variety of industry groups that
require trusted and secure electronic commerce and communications over IP
networks. Following is a representative list of customers that have purchased
VeriSign's services:
 
<TABLE>
<S>  <C> <C>
  Financial Services       Telecommunications      Manufacturing/Transportation
  American Skandia         AT&T                    CSX
   Insurance               BellSouth               Eastman Kodak
  Barclay's Bank           British                 Ford Motor Company
  Bank of America           Telecommunications     Gillette
  Deutsche Bank            Japan Communication     Miller Brewing
  First Union Bank         MCI--Worldcom            Company
  First USA Paymentech     NTT Communications      United Parcel
  Merrill Lynch            US West                  Service
  Morgan Stanley Dean
   Witter
  Royal Bank of Canada     Technology              Government
  Sumitomo Bank            EDS                     Department of
  TransUnion               Hewlett-Packard          Agriculture
  VISA                     Intuit                  Department of
                           Netscape                 Justice
                           NEC                     Federal Bureau of
                           NTT Data                 Investigation
                           Texas Instruments       Internal Revenue
                                                    Service
                                                   National Security
                                                    Agency
                                                   Patent & Trademark
                                                    Office
                                                   Social Security
                                                    Administration
                                                   U.S. Army
                                                   Veteran's
</TABLE>                                            Administration
 
  VISA accounted for approximately 21% of our revenues in 1996 and 10% of our
revenues in 1997. No other customer accounted for 10% or more of our revenues
during 1995, 1996 or 1997. No customer accounted for 10% or more of our
revenues during the first nine months of 1998. VISA accounted for 12% of our
revenues for the first nine months of 1997.
 
  The following examples illustrate how certain organizations use our
Internet-based trust services to enable trusted and secure electronic commerce
and communications. These customers have purchased VeriSign OnSite,
integration modules and professional services from VeriSign and are able to
issue digital certificates to their clients, customers or employees to
communicate and conduct transactions over IP networks.
 
  Banking. A large U.S.-based bank provides a variety of services for
consumers, corporations and governments. The bank is utilizing IP networks and
digital certificates to provide its services to existing customers as well as
reaching new customers where physical branch locations do not exist. These
services include cash management and treasury applications for its corporate
clients, consumer-based home banking services for its customers and secure e-
mail for its employees over the Internet. We believe that providing such
services securely over IP networks will allow the bank to generate additional
revenue, reduce operating costs and improve customer service.
 
  Global Automobile Manufacturer. A global automobile manufacturer intends to
use IP networks and digital certificates for a variety of applications
including: automating its requisition systems to eliminate paperwork;
providing single sign-on capabilities to employees for all its disparate
computer systems; participation in the Automotive Network Exchange enabling
electronic transactions with global automotive parts suppliers; and connecting
its retail dealer network to a centralized information system providing order
information and inventory status.
 
  Global Semiconductor Manufacturer. A global semiconductor manufacturer
intends to use IP networks and digital certificates for a variety of
applications including: enabling customers to check order status; providing
 
                                      39
<PAGE>
 
customers and design consultants secure remote access to its proprietary
design tools for the design of application specific integrated circuits; the
integration of its logistics management software with a web-based interface
enabling centralized monitoring of its global manufacturing operations; and
the implementation of secure e-mail for all of that company's global
employees.
 
Technology
 
  VeriSign employs a modular set of software applications and toolkits, which
collectively make up its proprietary WorldTrust platform, as the core platform
for all of its Internet-based trust services. The modular design of the
WorldTrust platform enables our trust services to be distributed over one or
many co-located or dispersed computer systems, allowing certain functions of
the certification process, such as registration, authentication, issuance,
revocation, renewal or replacement, to be deployed at customer or affiliate
locations while maintaining a secure and reliable link to one of our secure
data centers for back-end processing. These modules can also be replicated in
order to handle increased volumes of digital certificates. Digital certificate
service modules incorporated in the WorldTrust platform include:
 
  Subscriber Services Module. Our subscriber services module supports requests
for digital certificate issuance, revocation, renewal and replacement.
Software toolkits are provided to permit rapid customization and integration
of digital certificate services with a customer's business-specific web-based
solutions.
 
  Authentication Services Module. Our authentication services module supports
manual, automated and delegated authentication of subscribers by designated
sources prior to digital certificate issuance. We provide software toolkits
and programming interfaces to allow for integration with various process
models and database systems.
 
  Administration and Support Modules. Our administration and support modules
provide lifecycle services such as digital certificate revocation, renewal and
reissuance, as well as a customer support knowledge base to facilitate general
reporting of CA activity, and web-based and e-mail-based support for customers
and end users.
 
  Directory Services Module. Our directory services module utilizes database
applications typically hosted at one of our secure data centers to support the
storage of and access to digital certificates and associated information for a
particular customer. VeriSign OnSite customers and our affiliates can also
download updated copies of their directory information to their systems.
 
  Service Control Module. Our service control module is hosted at one of our
secure data centers and acts as a gatekeeper, decoding and routing all digital
certificate service requests based on customer type, application type,
security protocol, authentication policies, certificate content and billing
rules. This module utilizes a proprietary, data-driven programming model to
define each service and dispatch the appropriate control and error commands to
other modules.
 
  Digital Certificate Processing Module. Our digital certificate processing
module is hosted at one of our secure data centers and creates digital
certificates with digital signatures on each certificate, delivers digital
certificates to subscribers and stores a copy of each digital certificate for
archive, audit and directory purposes.
 
Infrastructure
 
  VeriSign believes that its highly reliable and scalable operations
infrastructure represents a strategic advantage in providing Internet-based
trust services. Our secure data centers are located in Mountain View,
California and Kawasaki, Japan. Our international affiliates also operate
secure data centers in their geographic areas. These centers operate on a 24
hour, 7 days per week basis and support all aspects of our Internet-based
trust services. VeriSign guarantees that a customer's services are operational
on a 24 hour, 7 days per week basis, except for scheduled downtime. By
leveraging our WorldTrust platform, we can distribute certain functionality
 
                                      40
<PAGE>
 
of our secure data centers in optimum configurations based on customer
requirements for availability and capacity. Key features of our infrastructure
include:
 
  Distributed Servers. We deploy a large number of high-speed servers to
support capacity and availability demands. We can add additional servers to
support increases in digital certificate volumes, new services introductions,
new customers and higher levels of redundancy without service interruptions or
response time degradation. The WorldTrust platform provides automatic fail-
over, load balancing and threshold monitoring on critical servers.
 
  Advanced Telecommunications. We deploy and maintain redundant
telecommunications and routing hardware and maintain high-speed connections to
multiple ISPs and throughout our internal network to ensure that our mission
critical services are readily accessible to customers at all times.
 
  Network Security. We incorporate advanced architectural concepts such as
protected domains, restricted nodes and distributed access control in our
system architecture. We have also developed proprietary communications
protocols within and between the WorldTrust platform modules that we believe
can prevent most known forms of electronic attacks. In addition, we employ the
latest network security technologies including firewalls and intrusion
detection software, and contract with security consultants who perform
periodic attacks and security risk assessments. We will continue to evaluate
and deploy new technological defenses as they become available. See "Risk
Factors--System Interruptions and Security Breaches Could Harm Our Business."
 
  Call Center and Help Desk. We provide a wide range of customer support
services through a phone-based call center, e-mail help desk and web-based
self-help system. Our call center is staffed from 5 a.m. to 6 p.m. PST and
employs an automated call director system. The web-based support services are
available on a 24 hour, 7 days per week basis, utilizing customized auto
response systems to provide self-help recommendations and a staff of trained
customer support agents.
 
  Disaster Recovery Plans. Although we believe our operations facilities are
highly resistant to systems failure and sabotage, we have developed a disaster
recovery and contingency operation plan. We also have an agreement with
Comdisco Corporation to provide replication of customer data, facilities and
systems at another site so that all of our services can be re-instated within
24 hours of a failure. In addition, all of our digital certificate services
are linked to advanced storage systems that provide data protection through
techniques such as mirroring and replication. See "Risk Factors--System
Interruption and Security Breaches Could Harm Our Business."
 
  International Affiliates. VeriSign's international affiliates are required
to build, implement and maintain their infrastructure according to VeriSign's
requirements. VeriSign currently has affiliates located in France (CertPlus),
Japan (VeriSign Japan), South Africa (SACA), Taiwan (Acer HiTrust) and the
United Kingdom (BT). We have also recently entered into an agreement with an
affiliate in Germany.
 
Security and Trust Practices
 
  VeriSign believes that its perceived level of trustworthiness will continue
to be a significant determining factor in the acceptance of its Internet-based
trust services. We believe that our reputation as a trusted party is based, to
a large extent, on both the security of our physical infrastructure and the
special practices used in our operations, which include our secure data
centers incorporating state-of-the-art physical and network security. We
believe we have established a leadership role in defining and adhering to
industry-endorsed trust practices and policies, a role we believe enhances our
perceived trustworthiness as a provider of Internet-based trust services. Over
the past three years, we have invested, and continue to invest, capital and
human resources in the following key areas:
 
  Employees. We use stringent hiring and personnel management practices for
all operations and certain engineering personnel as well as all executive
management. We utilize a licensed private investigation firm to
 
                                      41
<PAGE>
 
conduct background checks into potential employees' criminal and financial
histories and conduct periodic investigations of such personnel on an ongoing
basis.
 
  Security Monitoring Systems. We have sophisticated access control and
monitoring systems that help prevent unauthorized access to secure areas and
provide 24 hour, 7 days per week monitoring and logging of activities within
our facilities. These systems include electronic key and biometric access
control devices, video monitoring and recording devices, deployment and
automatic arming of motion detectors, glass breakage detectors and remote
alarm system monitoring.
 
  Site Construction. Our secure data centers have been built using
construction techniques modeled after U.S. Army specifications for facilities
accredited to handle classified information and contain a robust set of
physical and environmental defenses. These defenses include double layer,
slab-to-slab wall design, self-closing and locking metal doors at all secure
entrances, man traps, tamper proof enclosures for cryptographic materials and
fire prevention systems.
 
  Back-up Power Systems. We have invested in back-up power systems that
automatically activate in the event of a failure in our primary power sources.
These include uninterruptible power supply systems and a diesel generator and
fuel supply. To ensure reliability, these systems are tested on a periodic
basis.
 
  Audits. Our Practices and External Affairs Department periodically performs,
and retains accredited third parties to perform, audits of our operational
procedures under both internally-developed procedures and externally-
recognized standards.
 
  Practices. Our Practices and External Affairs Department is responsible for
the development of VeriSign's practices for issuing and managing digital
certificates. These practices are set forth in our Certification Practice
Statement, which we provide in order to assure potential customers and
strategic partners as to the trustworthiness of our Internet-based trust
services. The Practices and External Affairs Department is also responsible
for our accountability and security controls and regularly monitors all
aspects of our secure data centers.
 
  Policy Making Activities. The Practices and External Affairs Department also
takes a leading role in a variety of organizations that are defining standards
for trusted and secure electronic commerce and communications over IP
networks. For example, we actively participate in the United Nations
Commission on International Trade Law, which created the United Nations Model
Law on Electronic Commerce, the American Bar Association's Information
Security Committee, Section of Science and Technology, which has drafted
digital signature guidelines, the International Chamber of Commerce ETERM
Working Party, which is chaired by VeriSign's Vice President of Practices and
External Affairs, and the U.S. State Department Advisory Committee on
Electronic Commerce.
 
Strategic Relationships
 
  VeriSign has established strategic relationships with leading companies
across a number of industry segments. We currently maintain strategic
relationships with AT&T, BT, Cisco, Microsoft, Netscape, Network Associates,
Security Dynamics and VISA.
 
  AT&T. We have an agreement with AT&T in which AT&T offers our digital
certificates in conjunction with AT&T's Internet services. AT&T acts as a CA
and issues digital certificates on a co-branded basis.
 
  British Telecommunications. BT is a member of our international affiliate
program. BT issues digital certificates and provides a range of services for
secure Internet access and electronic commerce on a co-branded basis. With our
support, BT has established CA infrastructure in the U.K., including the
creation of a secure data center that adheres to our site construction
specifications. We have agreed to collaborate to develop legal practices and
policies to maintain compliance with U.K. and European-based regulations and
standards as they emerge.
 
                                      42
<PAGE>
 
  Cisco. Our technology is incorporated in Cisco's Internetwork Operating
System through the use of the jointly developed Certificate Request Syntax
(CRS) protocol, which enables digital certificate functionality in a variety
of Cisco's networking products. As a result, IP networks utilizing Cisco
network devices such as routers and firewalls support applications that rely
on VeriSign digital certificates for authentication and network management. We
also engage in a variety of joint marketing efforts with Cisco. Cisco is one
of our stockholders.
 
  Microsoft. We work with Microsoft to develop, promote and distribute a
variety of client-based and server-based digital certificate services and we
have been designated as the preferred provider of digital certificates for
Microsoft customers. Our technology has been embedded in Microsoft's Internet
Explorer since version 2.0, allowing users to uniquely identify themselves to
web servers and securely access information over the Internet. In addition,
users can easily obtain their own digital certificate for use with Explorer by
registering on our website for our digital certificates. We also provide
Secure Server digital certificates for Microsoft's Internet Information Server
product. VeriSign's services can be used in conjunction with Microsoft Outlook
98 to enable the delivery of secure email in extranet applications. In
addition, in September 1998, VeriSign and Microsoft announced plans for
enhanced integration of our digital certificate services with Microsoft
Exchange Server 5.5. The new capability offers a secure email extranet
"gateway" service which will allow Exchange Server customers to issue and
manage digital certificates within the global VeriSign Trust Network. VeriSign
and Microsoft also jointly promote a set of technologies and security policies
for the secure authentication and distribution of software over the Internet
and engage in other joint marketing activities. Microsoft is one of our
stockholders.
 
  Netscape. We work with Netscape on a variety of technology projects and
joint marketing activities. Our technology has been embedded in Netscape's
Navigator since version 1.1 and in Netscape's Communicator since version 4.0.
We also have an agreement with Netscape that provides that Netscape feature us
as a premier provider of digital certificates on the Netscape website and also
provides for VeriSign to have a first right of participation for any new
Netscape products incorporating digital certificate technology. Users of
Netscape browsers can easily enroll for standard VeriSign digital certificates
using Netscape products. Netscape's SuiteSpot product, including versions with
128-bit encryption capabilities, can also utilize our Secure Server and Global
Server digital certificates. We also support Netscape's object-signing
technology, enabling software developers to digitally sign Java and JavaScript
objects in order to authenticate the developer's identity and assure end users
that the downloaded objects have not been tampered with or modified.
 
  Network Associates. We have a strategic relationship with Network Associates
with the goal of enabling cross product support and promotion of each
company's digital certificate-based enterprise security solutions. Network
Associates' Net Tools Secure products will be able to communicate securely
with each other using our Internet-based trust services and will be enabled to
automatically administer the essential functions of running a digital
certificate infrastructure. Our digital certificate services will be used with
Network Associates' applications to allow customers to deploy and manage a
security solution in which their firewalls, security vulnerability scanners,
encryption applications and virtual private network products are integrated to
more effectively prevent security breaches. Customers utilizing this joint
product integration will be able to use our services to manage digital
certificates for Network Associates' Net Tools Secure product suite, thereby
allowing enterprise customers to establish themselves as a CA. We also engage
in a variety of joint marketing efforts with Network Associates. We currently
have no written agreement with Network Associates.
 
  Security Dynamics. We have an agreement with Security Dynamics under which
Security Dynamics will incorporate custom digital certificate technology
developed by VeriSign into Security Dynamics' future products. Security
Dynamics has also agreed to be a reseller of certain VeriSign OEM technology.
We believe Security Dynamics is a market leader in enterprise security and
that, by including our technology in Security Dynamics' products, we will have
a broader potential market for our digital certificate services. Security
Dynamics, through a controlled entity, holds more than 5% of our common stock.
See "Certain Transactions" and "Principal and Selling Stockholders."
 
  VISA. We have an agreement with VISA under which we provide SET digital
certificate services to VISA on behalf of its member banks, enabling them to
offer branded SET-compliant digital certificates to their cardholders and
merchants. VISA is a stockholder of VeriSign.
 
                                      43
<PAGE>
 
Marketing, Sales and Distribution
 
  Marketing
 
  VeriSign utilizes a variety of marketing programs to increase brand
awareness. In addition to joint marketing arrangements, we also engage in a
variety of direct marketing programs focused on owners of web servers, home
and business PC users and enterprise professionals in mid-sized and large
organizations. We address these customers through outbound e-mail,
telemarketing and printed mail campaigns to stimulate product trial, purchase
and usage. We also use banner ads that link to our website and participate in
industry-specific events, trade shows, executive seminars, industry
association activities and various national and international standards
bodies.
 
  Sales and Distribution
 
  VeriSign markets its Internet-based trust services worldwide through
multiple distribution channels. These sales and service groups are based in
our headquarters in Mountain View, California, and in several field offices in
the United States. We also market our Internet-based trust services through
other distribution channels, including telesales, VARs, systems integrators
and our affiliates.
 
  Outside the United States, VeriSign markets its Internet-based trust
services directly over the Internet and through reseller and affiliate
relationships--the global VeriSign Trust Network. Except for VeriSign Japan,
the members of the global VeriSign Trust Network sell and support VeriSign
Internet-based trust services both within their local countries and certain
other foreign countries where we do not operate through a direct sales
subsidiary. In Japan, we market our Internet-based trust services through
VeriSign Japan, which maintains a secure data center in Kawasaki, Japan, and
employed 30 persons as of September 30, 1998. Revenues from VeriSign Japan and
other international customers were 4% in 1996, 9% in 1997 and 11% for the
first nine months of 1998, respectively. See Note 12 of the Notes to the
Consolidated Financial Statements of this prospectus for a summary of
operations by geographic region.
 
  Internet Sales. VeriSign distributes many of its Internet-based trust
services through its website. We believe that Internet distribution is
particularly well-suited for sales of certain of our website authentication
products and Internet-based trust services. We also use our website to assist
in disseminating services information and in generating services trials.
 
  Direct Sales. VeriSign's direct sales force targets mid-sized and large
corporations, financial institutions, commercial Web sites and federal and
state government agencies. We believe that these organizations have a
substantial installed base of PCs, web servers, IP networks and high-speed
access to the Internet and are most likely to be able to benefit quickly from
the use of digital certificates. The direct sales force also targets
international organizations that we believe are the most suitable to act as
VeriSign affiliates. As of September 30, 1998, we had 90 direct sales and
sales support employees in the United States, while the international direct
sales and sales support groups consisted of 14 employees.
 
  Telesales. During 1998 we commenced our own internal telemarketing operation
that is responsible for customer prospecting, lead generation and lead follow-
up. This marketing activity qualifies leads for further follow up by the
direct sales force or inside sales team or leads the prospect to our website
so that the prospect can access information and enroll for our Internet-based
trust services.
 
  VARs and Systems Integrators. VeriSign works with VARs and systems
integrators to package and sell its Internet-based trust services. We also
have a VeriSign Business Partner Program that allows ISPs to offer Secure
Server digital certificates as an integral part of their secure web hosting
services.
 
Research and Development
 
  We believe that our future success will depend in large part on our ability
to continue to maintain and enhance our current technologies and Internet-
based trust services. To this end, we leverage the modular nature
 
                                      44
<PAGE>
 
of our WorldTrust platform to enable us to develop enhancements rapidly and to
deliver complementary new Internet-based trust services. In the past, we have
developed Internet-based trust services both independently and through efforts
with leading application developers and major customers. We have also, in
certain circumstances, acquired or licensed technology from third parties,
including public key cryptography technology from RSA. Although we will
continue to work closely with developers and major customers in our
development efforts, we expect that most of our future enhancements to
existing services and new Internet-based trust services will be developed
internally.
 
  As of September 30, 1998, VeriSign had 66 employees dedicated to research
and development. We also employ independent contractors for documentation,
usability, artistic design and editorial review. Research and development
expenses were $642,000 in the period from our inception to December 31, 1995,
$2.1 million in 1996, $5.3 million in 1997 and $6.2 million in the first nine
months of 1998. To date, all development costs have been expensed as incurred.
We believe that timely development of new and enhanced Internet-based trust
services and technology are necessary to remain competitive in the
marketplace. Accordingly, VeriSign intends to continue recruiting and hiring
experienced research and development personnel and to make other investments
in research and development.
 
  The market for digital certificate products and related services is an
emerging market characterized by rapid technological developments, frequent
new product introductions and evolving industry standards. The emerging nature
of this market and its rapid evolution will require that we continually
improve the performance, features and reliability of our Internet-based trust
services, particularly in response to competitive offerings and that we
introduce new Internet-based trust services or enhancements to existing
Internet-based trust services as quickly as possible and prior to our
competitors. The success of new introductions is dependent on several factors,
including proper new definition, timely completion and introduction of new
services, differentiation of new services from those of our competitors and
market acceptance of our new Internet-based trust services. There can be no
assurance that we will be successful in developing and marketing new Internet-
based trust services that respond to competitive and technological
developments and changing customer needs.
 
  Our failure to develop and introduce new Internet-based trust services
successfully on a timely basis and to achieve market acceptance for such
Internet-based trust services could have a material adverse effect on our
business, operating results and financial condition. In addition, the
widespread adoption of new Internet, networking or telecommunication
technologies or standards or other technological changes could require that we
make substantial expenditures to modify or adapt our Internet-based trust
services. To the extent that a specific method other than digital certificates
is adopted to enable trusted and secure electronic commerce and communications
over IP networks, sales of VeriSign's existing and planned Internet-based
trust services would be adversely affected and our Internet-based trust
services could be rendered unmarketable or obsolete, which would have a
material adverse effect on our business, operating results and financial
condition. We believe that there is a time-limited opportunity to achieve
market share. We may not be successful in achieving widespread acceptance of
our Internet-based trust services or in achieving market share before
competitors offer products and services with features similar to our current
offerings. Any such failure by us could materially harm our business. See
"Risk Factors--Technological Changes Will Affect Our Business."
 
Customer Support
 
  We believe that a high level of customer support for customers as well as
end users of digital certificates is necessary to achieve acceptance of our
Internet-based trust services. We provide a wide range of customer support
services through a staff of customer service personnel, call center, e-mail
help desk and a web-based self-help system. Since we first introduced our
Internet-based trust services over three years ago, we have developed a
substantial knowledge base of customer support information based on our
customer interactions and we believe that this offers us a competitive
advantage. Our call center is staffed from 5 a.m. to 6 p.m. PST and employs an
automated call director system to provide self-help services and, if
necessary, to route support calls to available support personnel. We also
offer web-based support services that are available on a 24 hour, 7 days
 
                                      45
<PAGE>
 
per week basis and that are frequently updated to improve existing information
and to support new services. Our e-mail customer support service utilizes
customized auto response systems to provide self-help recommendations and also
utilizes a staff of trained customer support agents who typically respond to
customer inquiries within 24 hours. As of September 30, 1998, we had 79
employees in our customer support organization.
 
  We also employ technical support personnel who work directly with our direct
sales force, distributors and customers of our electronic commerce and
enterprise solutions. Our annual maintenance agreements for our electronic
commerce and enterprise solutions include technical support and upgrades. We
also provide training programs for enterprise customers of our Internet-based
trust services.
 
Competition
 
  Our Internet-based trust services are targeted at the new and rapidly
evolving market for trusted and secure electronic commerce and communications
over IP networks. Although the competitive environment in this market has yet
to develop fully, we anticipate that it will be intensely competitive, subject
to rapid change and significantly affected by new product and service
introductions and other market activities of industry participants.
 
  Our principal competitors generally fall within one of three categories: (1)
companies such as Entrust Technologies which offer software applications and
related digital certificate products that customers operate themselves; (2)
companies such as Digital Signature Trust Company (a subsidiary of Zions
Bancorporation) that primarily offer digital certificate and CA related
services; and (3) companies focused on providing a bundled offering of
products and services such as GTE CyberTrust and IBM (working jointly with
Equifax). We also experience competition from a number of smaller companies,
and we believe that our primary long-term competitors may not yet have entered
the market. Netscape has introduced software products that enable the issuance
and management of digital certificates, and we believe that other companies
could introduce such products. Additional companies could offer digital
certificate solutions that are competitive with ours.
 
  Several of our current and potential competitors have longer operating
histories and significantly greater financial, technical, marketing and other
resources than we do and therefore may be able to respond more quickly than we
can to new or changing opportunities, technologies, standards and customer
requirements. Many of these competitors also have broader and more established
distribution channels that may be used to deliver competing products or
services directly to customers through bundling or other means. If such
competitors were to bundle competing products or services for their customers,
the demand for our products and services might be substantially reduced and
our ability to distribute our products successfully and the utilization of our
services would be substantially diminished. In addition, browser companies
that embed our interface technologies or otherwise feature VeriSign as a
provider of digital certificate solutions in their web browsers or on their
websites could also promote our competitors or charge VeriSign substantial
fees for such promotions in the future. New technologies and the expansion of
existing technologies may increase the competitive pressures on us. There can
be no assurance that competing technologies developed by others or the
emergence of new industry standards will not adversely affect our competitive
position or render our Internet-based trust services or technologies
noncompetitive or obsolete. In addition, the market for digital certificates
is nascent and is characterized by announcements of collaborative
relationships involving our competitors. The existence or announcement of such
relationships could adversely affect our ability to attract and retain
customers. As a result of the foregoing and other factors, we may not be able
to compete effectively with current or future competitors and competitive
pressures that we face could materially harm our business.
 
  In connection with our first round of financing, RSA contributed certain
technology to us and entered into a noncompetition agreement with us pursuant
to which RSA agreed that it would not compete with our CA business for a
period of five years. This noncompetition agreement will expire in April 2000.
We believe that, because RSA, which is now a wholly-owned subsidiary of
Security Dynamics, has already developed expertise in the area of
cryptography, its barriers to entry would be lower than those that would be
encountered by our
 
                                      46
<PAGE>
 
other potential competitors should it choose to enter any of our markets. If
RSA were to enter into the digital certificate market, our business could be
materially harmed.
 
Intellectual Property
 
  We rely primarily on a combination of copyrights, trademarks, trade secret
laws, restrictions on disclosure and other methods to protect our intellectual
property and trade secrets. We also enter into confidentiality agreements with
our employees and consultants, and generally control access to and
distribution of our documentation and other proprietary information. Despite
these precautions, it may be possible for a third party to copy or otherwise
obtain and use our intellectual property or trade secrets without
authorization. In addition, there can be no assurance that others will not
independently develop substantially equivalent intellectual property. There
can be no assurance that the precautions we take will prevent misappropriation
or infringement of our technology. We have also filed five applications for
patents with respect to certain of our technology. However, the U.S. Patent
and Trademark Office may not award any patents with respect to these
applications. Even if patents are issued, they may not adequately protect this
technology from infringement or prevent others from claiming our technology
infringes that of third parties. Our failure to protect our intellectual
property in a meaningful manner could materially harm our business. In
addition, litigation may be necessary in the future to enforce our
intellectual property rights, to protect our trade secrets or to determine the
validity and scope of the proprietary rights of others. Such litigation could
result in substantial costs and diversion of management and technical
resources, either of which could materially harm our business.
 
  We also rely on certain licensed third-party technology, such as public key
cryptography technology licensed from RSA and other technology that is used in
our Internet-based trust services to perform key functions. In particular, RSA
has granted VeriSign a perpetual, royalty free, nonexclusive, worldwide
license to distribute Internet-based trust services we develop that contain or
incorporate the RSA BSAFE and TIPEM products and that relate to digital
certificate issuing software, software for the management of private keys and
for digitally signing computer files on behalf of others, software for
customers to preview and forward digital certificate requests to us, or such
other services that, in RSA's reasonable discretion, are reasonably necessary
for the implementation of a digital certificate business. Our agreement with
RSA also requires RSA to provide us maintenance and technical support for
these services. RSA's BSAFE product is a software tool kit that allows for the
integration of encryption and authentication features into software
applications. TIPEM is a secure e-mail development tool kit that allows for
secure e-mail messages to be sent using one vendor's e-mail product and read
by another vendor's e-mail product. These third-party technology licenses may
not continue to be available to VeriSign on commercially reasonable terms or
at all. The loss of any of these technologies could materially harm our
business. Moreover, in our current license agreements, the licensor has agreed
to defend, indemnify and hold VeriSign harmless with respect to any claim by a
third party that the licensed software infringes any patent or other
proprietary right. Although these licenses are fully paid, there can be no
assurance that the outcome of any litigation between the licensor and a third
party or between VeriSign and a third party will not lead to obligations for
us to pay royalties for which we are not indemnified or for which such
indemnification is insufficient, or that we will be able to obtain any
additional license on commercially reasonable terms or at all. In the future,
we may seek to license additional technology to incorporate in our Internet-
based trust services. Third party technology licenses that we may need to
obtain in the future may not be available to us on commercially reasonable
terms or at all. The loss of or inability to obtain or maintain any of these
technology licenses could result in delays in introduction of our Internet-
based trust services until equivalent technology, if available, is identified,
licensed and integrated. This could materially harm our business.
 
  From time to time, we have received, and may receive in the future, notice
of claims of infringement of other parties' proprietary rights. Infringement
or other claims could be asserted or prosecuted against us in the future, and
it is possible that past or future assertions or prosecutions could harm our
business. Any such claims, with or without merit, could be time-consuming,
result in costly litigation and diversion of technical and management
personnel, cause delays in the release of new Internet-based trust services or
require us to develop non-infringing technology or enter into royalty or
licensing agreements. Such royalty or licensing agreements, if
 
                                      47
<PAGE>
 
required, may not be available on terms acceptable to us, or at all. In the
event of a successful claim of infringement against VeriSign and our failure
or inability to develop non-infringing technology or license the infringed or
similar technology on a timely basis, our business could be materially harmed.
See "Risk Factors--There are Risks Related to Intellectual Property Rights."
 
Employees
 
  As of September 30, 1998, VeriSign had 302 full-time employees. Of the
total, 104 were employed in sales and marketing, 66 in research and
development, 79 in customer support, five in practices and external affairs,
four in federal markets and 44 in finance and administration, including
information services personnel. We have never had a work stoppage, and no
employees are represented under collective bargaining agreements. We consider
our relations with our employees to be good. Our ability to achieve our
financial and operational objectives depends in large part upon our continued
ability to attract, integrate, train, retain and motivate highly qualified
sales, technical and managerial personnel, and upon the continued service of
our senior management and key sales and technical personnel, none of whom is
bound by an employment agreement. Competition for such qualified personnel in
our industry and geographical location in the San Francisco Bay Area is
intense, particularly in software development and product management
personnel. See "Risk Factors--We Depend on Key Personnel."
 
Facilities
 
  VeriSign's principal administrative, sales, marketing, research and
development and operations facilities are located in two adjacent buildings in
Mountain View, California, where we occupy approximately 44,000 square feet
under leases expiring in 2001. We have leased through June 30, 2005,
additional office space contiguous to our headquarters that will be available
for occupancy in the first quarter of 1999. We believe that with this
additional space of approximately 52,000 square feet, our office space will be
adequate to meet our needs for the foreseeable future.
 
  VeriSign also leases space for sales and support offices in Norcross,
Georgia; Rosemont, Illinois; Linthicum, Maryland; Wakefield, Massachusetts;
Novi, Michigan; Uniondale, New York; and Irving, Texas. In addition, we lease
space in Kawasaki, Japan for our offices and secure data center and we lease
space for sales and support in Upplands Vasby, Sweden. VeriSign's success is
largely dependent on the uninterrupted operation of its secure data centers
and computer and communication systems. See "Risk Factors--System
Interruptions and Security Breaches Could Harm Our Business."
 
                                      48
<PAGE>
 
                                   MANAGEMENT
 
Executive Officers and Directors
 
  The following table sets forth certain information regarding the executive
officers and directors of VeriSign as of December 31, 1998.
 
<TABLE>   
<CAPTION>
 Name                               Age Position
 ----                               --- --------
 <C>                                <C> <S>
 D. James Bidzos (1)..............   43 Chairman of the Board
 Stratton D. Sclavos..............   37 President, Chief Executive Officer and
                                         Director
 Jagtar S. Chaudhry...............   40 Vice President and General Manager of
                                         Security Services
 Dana L. Evan.....................   39 Vice President of Finance and
                                         Administration
                                         and Chief Financial Officer
 Quentin P. Gallivan..............   41 Vice President of Worldwide Sales
 Arnold Schaeffer.................   35 Vice President of Engineering
 Richard A. Yanowitch.............   42 Vice President of Marketing
 Timothy Tomlinson (2)............   48 Secretary and Director
 William Chenevich (1)(2).........   55 Director
 Kevin R. Compton (2).............   40 Director
 David J. Cowan (1)...............   33 Director
</TABLE>    
- --------
Notes: (1) Member of the Compensation Committee
       (2) Member of the Audit Committee
 
  D. James Bidzos has served as Chairman of the Board of VeriSign since its
founding in April 1995 and served as Chief Executive Officer of VeriSign from
April 1995 to July 1995. He has also served as President and Chief Executive
Officer of RSA since 1986. RSA was acquired by Security Dynamics in July 1996
and has been a wholly-owned subsidiary of Security Dynamics since that time.
Mr. Bidzos has been an Executive Vice President and a director of Security
Dynamics since its acquisition of RSA.
 
  Stratton D. Sclavos has served as President and Chief Executive Officer and
as a director of VeriSign since he joined VeriSign in July 1995. From October
1993 to June 1995, he was Vice President, Worldwide Marketing and Sales of
Taligent, Inc., a software development company that was a joint venture among
Apple Computer, Inc., IBM and Hewlett-Packard. From May 1992 to September 1993,
Mr. Sclavos was Vice President of Worldwide Sales and Business Development of
GO Corporation, a pen-based computer company. Prior to that time, he served in
various sales and marketing capacities for MIPS Computer Systems, Inc. and
Megatest Corporation. Mr. Sclavos is also a director and a member of the
compensation committee of Network Solutions, Inc. Mr. Sclavos holds a B.S.
degree in Electrical and Computer Engineering from the University of California
at Davis.
   
  Jagtar S. Chaudhry has served as Vice President and General Manager of
Security Services of VeriSign since VeriSign acquired SecureIT in July 1998.
Mr. Chaudhry founded SecureIT in January 1997 and served as its President and
Chief Executive Officer until it was acquired by VeriSign. Prior to founding
SecureIT, from January 1995, Mr. Chaudhry served as Vice President of Worldwide
Marketing at IQ Software, a database reporting tools company. Mr. Chaudhry was
the Vice President of Sales and Marketing--Software Products Group at Unisys
from March 1993 to January 1995. Mr. Chaudhry holds a B.S. degree in Electrical
Engineering from Institute of Technology, Varanasi, India and two M.S. degrees
in Computer Engineering and Industrial Engineering, and an M.B.A. from the
University of Cincinnati.     
 
  Dana L. Evan has served as Vice President of Finance and Administration and
Chief Financial Officer of VeriSign since she joined VeriSign in June 1996.
From 1988 to June 1996, she worked as a financial consultant in the capacity of
chief financial officer, vice president of finance or corporate controller for
various public and private companies and partnerships, including VeriSign from
November 1995 to June 1996, Delphi Bioventures, a venture capital firm, from
1988 to June 1995, and Identix Incorporated, a manufacturer of biometric
identity
 
                                       49
<PAGE>
 
   
verification and imaging products, from 1991 to August 1993. Prior to 1988,
she was employed by KPMG LLP, most recently as a senior manager. Ms. Evan is a
certified public accountant and holds a B.S. degree in Commerce with a
concentration in Accounting and Finance from the University of Santa Clara.
    
  Quentin P. Gallivan has served as Vice President of Worldwide Sales of
VeriSign since he joined VeriSign in October 1997. From April 1996 to October
1997, he was Vice President for Asia Pacific and Latin America of Netscape, a
software company. Prior to that time, Mr. Gallivan was with General Electric
Information Services, an electronic commerce services company, most recently
as Vice President, Sales and Services for the Americas.
 
  Arnold Schaeffer has served as Vice President of Engineering of VeriSign
since he joined VeriSign in January 1996. From March 1992 to December 1995, he
was employed by Taligent, most recently as Vice President of Engineering,
CommonPoint Products. Prior to working at Taligent, he served as a software
engineer for Apple, Intellicorp and Hewlett-Packard. Mr. Schaeffer holds a
B.S. degree in Information and Computer Science from the Georgia Institute of
Technology and an M.B.A. degree from the University of California at Berkeley.
 
  Richard A. Yanowitch has served as Vice President of Marketing of VeriSign
since he joined VeriSign in May 1996. From July 1995 to May 1996, he was a
management consultant to private software companies. From 1989 to June 1995,
he held a series of marketing positions with Sybase, Inc., a software company,
most recently as Vice President of Corporate Marketing. Prior to that time, he
held various sales, marketing and operating positions with The Santa Cruz
Operation, Inc., Digital Equipment Corporation, Lanier Harris Corporation and
Brooks International Corporation. Mr. Yanowitch holds a B.A. degree in History
from Swarthmore College and an M.B.A. degree in Entrepreneurial Management and
Marketing from Harvard Business School.
 
  Timothy Tomlinson has been Secretary and a director of VeriSign since its
founding in April 1995. He has been a partner of Tomlinson Zisko Morosoli &
Maser LLP, a law firm, since 1983. Mr. Tomlinson is also a director of Portola
Packaging, Inc. and Oak Technology, Inc. Mr. Tomlinson holds a B.A. degree in
Economics, an M.B.A. degree and a J.D. degree from Stanford University.
 
  William Chenevich has been a director of VeriSign since its founding in
April 1995. He has been the Group Executive Vice President, Data Processing
Systems of VISA, a financial services company, since October 1993. From May
1992 to October 1993, he was Executive Vice President and Chief Information
Officer of Ahmanson Corporation, a financial services company. Mr. Chenevich
holds a B.B.A. degree in Business and an M.B.A. degree in Management from the
City College of New York.
 
  Kevin R. Compton has been a director of VeriSign since February 1996. He has
been a general partner of Kleiner Perkins Caufield & Byers, a venture capital
firm, since January 1990. Mr. Compton is also a director of Citrix Systems,
Inc., Corsair Communications, Inc., Digital Generation Systems, Inc. and One
World Systems, Inc. (formerly Global Village Communication, Inc.). Mr. Compton
holds a B.S. degree in Business Management from the University of Missouri.
 
  David J. Cowan has been a director of VeriSign since its founding in April
1995. He has been a general partner of Bessemer Venture Partners, a venture
capital investment firm, since August 1996. Mr. Cowan has also been a manager
of Deer IV & Co. LLC, a venture capital investment firm, since August 1996.
Previously he was an associate with Bessemer Venture Partners from August 1992
to August 1996. Mr. Cowan also served as President and Chief Executive Officer
of Visto Corporation, a computer software and service firm, from August 1996
to April 1997, and as Chief Financial Officer of VeriSign from April 1995 to
June 1996. Mr. Cowan is also a director of Worldtalk Communications
Corporation. Mr. Cowan holds an A.B. degree in Mathematics and Computer
Science and an M.B.A. degree from Harvard University.
 
  VeriSign's Amended and Restated Bylaws currently authorize no fewer than
five and no more than seven directors. VeriSign's Board of Directors (the
"Board") is currently comprised of six directors. One class of directors is
elected by the stockholders at each annual meeting of stockholders to serve a
three-year term or until
 
                                      50
<PAGE>
 
their successors are duly elected and qualified. The existing directors were
elected pursuant to the provisions of the Stockholders' Agreement which has
terminated. VeriSign's Amended and Restated Bylaws divide the Board into three
classes, Class I, Class II and Class III, with members of each class serving
staggered three-year terms. The Class I directors, Messrs. Sclavos and
Tomlinson, will stand for reelection or election at the 1999 annual meeting of
stockholders. The Class II directors, Messrs. Compton and Cowan will stand for
reelection or election at the 2000 annual meeting of stockholders and the
Class III directors, Messrs. Bidzos and Chenevich will stand for reelection or
election at the 2001 annual meeting of stockholders. Executive officers are
elected by, and serve at the discretion of, the Board.
 
Board Committees
 
  The Board has established an Audit Committee to meet with and consider
suggestions from members of management, as well as VeriSign's independent
accountants, concerning the financial operations of VeriSign. The Audit
Committee also has the responsibility to review audited financial statements
of VeriSign and consider and recommend the employment of, and approve the fee
arrangements with, independent accountants for both audit functions and for
advisory and other consulting services. The Audit Committee is currently
comprised of Messrs. Chenevich, Compton and Tomlinson. The Board has also
established a Compensation Committee to review and approve the compensation
and benefits for VeriSign's key executive officers, administer VeriSign's
stock purchase, equity incentive and stock option plans and make
recommendations to the Board regarding such matters. The Compensation
Committee is currently comprised of Messrs. Bidzos, Chenevich and Cowan.
 
Director Compensation
 
  Directors do not receive any cash fees for their service on the Board or any
Board committee, but they are entitled to reimbursement of all reasonable out-
of-pocket expenses incurred in connection with their attendance at Board and
Board committee meetings. All Board members are eligible to receive stock
options under VeriSign's stock option plans, and outside directors receive
stock options pursuant to automatic grants of stock options under the 1998
Directors Stock Option Plan, or the Directors Plan.
 
  In October 1997, the Board adopted, and in January 1998 the stockholders
approved, the Directors Stock Option Plan and reserved a total of 125,000
shares of VeriSign's common stock for issuance thereunder. As of December 31,
1998, options to purchase 37,500 shares of common stock had been granted under
the Directors' Plan and 87,500 shares remained available for future grant.
Members of the Board who are not employees of VeriSign, or any parent,
subsidiary or affiliate of VeriSign, are eligible to participate in the
Directors Plan. The option grants under the Directors Plan are automatic and
nondiscretionary, and the exercise price of the options is 100% of the fair
market value of the common stock on the date of grant. Each new director who
is eligible to participate will initially be granted an option to purchase
15,000 shares on the date such director first becomes a director. These grants
are referred to as "Initial Grants." On each anniversary of a director's
Initial Grant or most recent grant if such director did not receive an Initial
Grant, each eligible director will automatically be granted an additional
option to purchase 7,500 shares if such director has served continuously as a
member of the Board since the date of such director's Initial Grant or most
recent grant if such director did not receive an Initial Grant. The term of
such options is ten years. They will terminate seven months following the date
the director ceases to be a director or, if VeriSign so specifies in the
grant, a consultant of VeriSign (twelve months if the termination is due to
death or disability). All options granted under the Directors Plan will vest
as to 6.25% of the shares each quarter after the date of grant, provided the
optionee continues as a director or, if VeriSign so specifies in the grant, as
a consultant of VeriSign. Additionally, immediately prior to the dissolution
or liquidation of VeriSign or a "change in control" transaction, all options
granted pursuant to the Directors Plan will accelerate and will be exercisable
for a period of up to six months following the transaction, after which period
any unexercised options will expire. In July 1998, VeriSign granted to each of
Messrs. Bidzos, Chenevich, Compton, Cowan and Tomlinson an option to purchase
7,500 shares of its common stock under the Directors Plan with an exercise
price of $39.25 per share.
 
  Prior to the adoption of the Directors Plan, outside directors received
stock options pursuant to automatic grants under the 1995 Stock Option Plan.
In June 1997, VeriSign granted to each of Messrs. Bidzos, Compton, Cowan and
Tomlinson an option to purchase 3,500 shares of common stock under VeriSign's
1995 Stock Option
 
                                      51
<PAGE>
 
Plan with an exercise price of $8.00 per share. In July 1996, VeriSign granted
to each of Messrs. Bidzos, Chenevich, Compton, Cowan and Tomlinson an option
to purchase 10,000 shares of common stock under VeriSign's 1995 Stock Option
Plan with an exercise price of $8.00 per share.
 
Compensation Committee Interlocks and Insider Participation
 
  Mr. Bidzos, a member of the Compensation Committee, is an Executive Vice
President and a director of Security Dynamics, which, with its wholly-owned
subsidiaries, beneficially owns approximately 19.5% of VeriSign's common
stock, and also served as VeriSign's Chief Executive Officer from April to
July 1995. See "Certain Transactions." No interlocking relationship exists
between the Board or Compensation Committee and the board of directors or
compensation committee of any other company, nor has any such interlocking
relationship existed in the past.
 
Executive Compensation
 
  The following table sets forth certain summary information concerning the
compensation awarded to, earned by, or paid for services rendered to VeriSign
in all capacities during 1997 and 1998 by VeriSign's Chief Executive Officer
and the four most highly compensated executive officers, other than the Chief
Executive Officer, who were serving as executive officers at the end of 1998
(collectively, the "Named Executive Officers").
 
                          Summary Compensation Table
 
<TABLE>
<CAPTION>
                                                                       Long-Term
                                                                      Compensation
                                                                      ------------
                                         Annual Compensation             Awards
                                    --------------------------------- ------------
                                                                       Securities
                                                         Other Annual  Underlying
 Name and Principal Position   Year  Salary   Bonus      Compensation  Options(#)
 ---------------------------   ---- -------- --------    ------------ ------------
 <S>                           <C>  <C>      <C>         <C>          <C>
 Stratton D. Sclavos.........  1998 $250,000 $122,813(1)      --        400,000
  President and Chief
   Executive Officer           1997  200,000  183,022         --        100,000
 Quentin P. Gallivan.........  1998  150,000  150,000         --         45,000
  Vice President of Worldwide
   Sales                       1997   40,866       --         --        115,000
 Richard A. Yanowitch........  1998  166,667   67,070(1)      --         45,000
  Vice President of Marketing  1997  140,000   59,084         --             --
 Dana L. Evan................  1998  167,708   65,046(1)      --         60,000
  Vice President of Finance    1997  145,000   46,349         --         45,000
   and Administration and
   Chief Financial Officer
 Arnold Schaeffer............  1998  167,708   41,611(1)      --         90,000
  Vice President of
   Engineering                 1997  145,000   30,226         --         58,000
</TABLE>
- --------
Note: (1) Reflects actual bonuses earned and paid for the first three quarters
          of 1998 and an estimate of the bonus earned for the fourth quarter
          of 1998.
 
                                      52
<PAGE>
 
                         Option Grants in Fiscal 1998
 
  The following table sets forth certain information regarding stock options
granted to each of the Named Executive Officers during the year ended December
31, 1998.
 
<TABLE>
<CAPTION>
                                         Individual Grants(1)
                         ----------------------------------------------------
                                                                                Potential Realizable
                                                                                  Value at Assumed
                         Number of     Percent  of                                 Annual Rates of
                         Securities   Total Options                           Stock Price Appreciation
                         Underlying    Granted to       Exercise                 For Option Terms(2)
                          Options     Employees in       Price     Expiration -------------------------
Name                      Granted   Fiscal Year(%)(3) Per Share(4)    Date         5%          10%
- ----                     ---------- ----------------- ------------ ---------- ------------ ------------
<S>                      <C>        <C>               <C>          <C>        <C>          <C>
Stratton D. Sclavos.....  100,000          4.1%          $30.69     10/30/05  $  1,249,390 $  2,911,376
                          100,000          4.1            49.25     12/15/05     2,004,970    4,672,432
                          200,000          8.2            51.13     12/18/05     5,363,008    9,701,582
Quentin P. Gallivan.....   45,000          1.8            30.69     10/30/05       562,180    1,310,119
Richard A. Yanowitch....   45,000          1.8            30.69     10/30/05       562,180    1,310,119
Dana L. Evan............   60,000          2.5            30.69     10/30/05       749,574    1,746,825
Arnold Schaeffer........   90,000          3.7            30.69     10/30/05     1,124,360    2,620,238
</TABLE>
- --------
Notes: (1) Options granted in 1998 were granted under VeriSign's 1998 Equity
           Incentive Plan. These options become exercisable with respect to
           25% of the shares covered by the option on the first anniversary of
           the date of grant and with respect to an additional 6.25% of these
           shares each quarter thereafter. These options have a term of seven
           years. Upon certain changes in control of VeriSign, this vesting
           schedule will accelerate as to 50% of any shares that are then
           unvested. See "--Employee Benefit Plans" and "--Compensation
           Arrangements" for a description of the material terms of these
           options.
       (2) Potential realizable values are net of exercise price but before
           taxes, and are based on the assumption that the common stock of
           VeriSign appreciates at the annual rate shown (compounded annually)
           from the date of grant until the expiration of the seven-year term.
           These numbers are calculated based on Securities and Exchange
           Commission requirements and do not reflect VeriSign's projection or
           estimate of future stock price growth.
       (3) VeriSign granted options to purchase 2,433,756 shares of common
           stock to employees during 1998.
       (4) Options were granted at an exercise price equal to the fair market
           value per share of VeriSign common stock, as quoted on the Nasdaq
           National Market System.
 
                                      53
<PAGE>
 
  Aggregate Option Exercises in Fiscal 1998 and Fiscal Year-End Option Values
 
  The following table sets forth for each of the Named Executive Officers the
shares acquired and the value realized on each exercise of stock options
during the year ended December 31, 1998 and the year-end number and value of
exercisable and unexercisable options:
 
<TABLE>
<CAPTION>
                                             Number of Securities      Value of Unexercised
                          Shares            Underlying Unexercised     In-the-Money Options
                         Acquired           Options at 12/31/98(1)        at 12/31/98(2)
                            on     Value   ------------------------- -------------------------
Name                     Exercise Realized Exercisable Unexercisable Exercisable Unexercisable
- ----                     -------- -------- ----------- ------------- ----------- -------------
<S>                      <C>      <C>      <C>         <C>           <C>         <C>
Stratton D. Sclavos.....      --  $     --   25,000       475,000    $1,303,125   $9,340,625
Quentin P. Gallivan.....  28,744   745,184        6       131,250           319    5,861,719
Richard A. Yanowitch....      --        --       --        45,000            --    1,279,688
Dana L. Evan............      --        --   11,250        93,750       597,656    3,499,219
Arnold Schaeffer........   7,000   202,988    7,500       133,500       398,438    4,870,313
</TABLE>
- --------
Notes: (1)  Options shown were granted under VeriSign's 1995 Stock Option
            Plan, 1997 Stock Option Plan and 1998 Equity Incentive Plan, and
            are subject to vesting as described in footnote (1) to the option
            grant table above. See "--Employee Benefit Plans" and "--
            Compensation Arrangements" for a description of the material terms
            of these options.
       (2)  Based on a value of $59.13, the closing price per share of
            VeriSign's common stock on The Nasdaq National Market on December
            31, 1998, net of the option exercise price.
 
  No compensation intended to serve as incentive for performance to occur over
a period longer than one year was paid pursuant to a long-term incentive plan
during 1998 to any Named Executive Officer. VeriSign does not have any defined
benefit or actuarial plan under which benefits are determined primarily by
final compensation and years of service with any of the Named Executive
Officers.
 
Employee Benefit Plans
 
  1995 Stock Option Plan. At December 31, 1998, options to purchase 1,421,684
shares of common stock were outstanding under the 1995 Stock Option Plan. The
1995 Stock Option Plan was terminated on January 29, 1998, the effective date
of VeriSign's initial public offering, at which time the 1998 Equity Incentive
Plan became effective. As a result, no options have been granted under the
1995 Stock Option Plan since VeriSign's initial public offering. However,
termination did not affect any outstanding options, all of which will remain
outstanding until exercised or until they terminate or expire in accordance
with their terms. Options granted under the 1995 Stock Option Plan are subject
to terms substantially similar to those described below with respect to
options to be granted under the 1998 Equity Incentive Plan.
 
  1997 Stock Option Plan. At December 31, 1998, options to purchase 467,751
shares of common stock were outstanding under the 1997 Stock Option Plan. The
1997 Stock Option Plan was terminated on January 29, 1998, the effective date
of VeriSign's initial public offering, at which time VeriSign's 1998 Equity
Incentive Plan became effective. As a result, no options have been granted
under the 1997 Stock Option Plan since VeriSign's initial public offering.
However, termination did not affect any outstanding options, all of which will
remain outstanding until exercised or until they terminate or expire in
accordance with their terms. Options granted under the 1997 Stock Option Plan
are subject to terms substantially similar to those described below with
respect to options granted under the Equity Incentive Plan.
 
  1998 Equity Incentive Plan. In October 1997, the Board adopted, and in
January 1998 the stockholders approved, the Equity Incentive Plan. In addition
to the 2,000,000 shares reserved for issuance under the Equity Incentive Plan,
all shares remaining available under the 1995 Stock Option Plan and the 1997
Stock Option Plan were transferred to the Equity Incentive Plan. As of
December 31, 1998, options to purchase 2,187,456 shares of common stock had
been granted under the 1998 Equity Incentive Plan and 269,831 shares remained
available for future grant. The Equity Incentive Plan will terminate in
October 2007, unless sooner terminated in
 
                                      54
<PAGE>
 
accordance with the terms of the Equity Incentive Plan. The Equity Incentive
Plan authorizes the award of options, restricted stock awards and stock
bonuses (each an "Award"). No person will be eligible to receive more than
400,000 shares in any calendar year pursuant to Awards under the Equity
Incentive Plan other than a new employee of VeriSign who will be eligible to
receive no more than 1,000,000 shares in the calendar year in which such
employee commences employment. The Equity Incentive Plan is administered by
the Compensation Committee. The Compensation Committee has the authority to
construe and interpret the Equity Incentive Plan and any agreement made
thereunder, grant Awards and make all other determinations necessary or
advisable for the administration of the Equity Incentive Plan.
 
  The Equity Incentive Plan provides for the grant of both incentive stock
options ("ISOs") that qualify under Section 422 of the Internal Revenue Code,
and nonqualified stock options ("NQSOs"). ISOs may be granted only to
employees of VeriSign or of a parent or subsidiary of VeriSign. All Awards
other than ISOs may be granted to employees, officers, directors and
consultants. The exercise price of ISOs must be at least equal to the fair
market value of the common stock on the date of grant. The exercise price of
NQSOs must be at least equal to 85% of the fair market value of the common
stock on the date of grant. The maximum term of options granted under the
Equity Incentive Plan is ten years. Awards granted under the Equity Incentive
Plan generally vest as to 25% of the shares on the first anniversary of the
date of grant and as to 6.25% of the shares each of the next 12 quarters.
 
  Options granted under the Equity Incentive Plan generally expire three
months after the termination of the optionee's service, except in the case of
death or disability, in which case the options generally may be exercised for
up to 12 months following the date of death or termination of service due to
disability. Options will generally terminate immediately upon termination for
cause. In the event of the dissolution or liquidation of VeriSign or a "change
in control" transaction, outstanding Awards may be assumed or substituted by
the successor corporation (if any). If a successor corporation does not assume
or substitute the Awards, they will expire upon the effectiveness of the
transaction. The Committee, in its discretion, may provide that the vesting of
any or all Awards will accelerate prior to the effectiveness of the
transaction.
 
  1998 Employee Stock Purchase Plan. In December 1997, the Board adopted, and
in January 1998 the stockholders approved, the Purchase Plan and reserved
500,000 shares of common stock for issuance thereunder. As of December 31,
1998, 58,225 shares had been issued under the Purchase Plan and 441,775 shares
remained available for future issuance under the Purchase Plan. The Purchase
Plan is administered by the Compensation Committee of the Board. The
Compensation Committee has the authority to construe and interpret the
Purchase Plan. Employees generally will be eligible to participate in the
Purchase Plan if they are customarily employed by VeriSign for more than 20
hours per week and more than five months in a calendar year and are not 5%
stockholders of VeriSign. These employees may select a rate of payroll
deduction between 2% and 10% of their compensation and are subject to certain
maximum purchase limitations. Participation in the Purchase Plan will end
automatically upon termination of employment for any reason. Except for the
first offering, each offering under the Purchase Plan will be for a period of
24 months (the "Offering Period") and will consist of six-month purchase
periods (each a "Purchase Period"). The first Offering Period began on January
29, 1998 and will last until January 31, 2000. Offering Periods thereafter
will begin on February 1 and August 1. Each participant will be granted an
option on the first day of the Offering Period and such option will be
automatically exercised on the last day of each Purchase Period during the
Offering Period. The purchase price for the common stock purchased under the
Purchase Plan is 85% of the lesser of the fair market value of the common
stock on the first day of the applicable Offering Period and on the last day
of the applicable Purchase Period. The Committee will have the power to change
the duration of Offering Periods and Purchase Periods without stockholder
approval, if such change is announced at least 15 days prior to the beginning
of the Offering or Purchase Period to be affected.
 
  The Purchase Plan is intended to qualify as an "employee stock purchase
plan" under Section 423 of the Internal Revenue Code. Rights granted under the
Purchase Plan are not transferable by a participant other than by will or the
laws of descent and distribution. The Purchase Plan provides that, in the
event of the proposed dissolution or liquidation of VeriSign, the Offering
Period will terminate immediately prior to the consummation of such proposed
action, provided that the Compensation Committee may fix a different date for
termination of
 
                                      55
<PAGE>
 
the Purchase Plan and may give each participant the opportunity to purchase
shares under the Purchase Plan prior to such termination. The Purchase Plan
provides that, in the event of certain "change of control" transactions, the
Purchase Plan will continue for all Offering Periods that began prior to the
transaction and shares will be purchased based on the fair market value of the
surviving corporation's stock on each Purchase Date.
 
  The Purchase Plan will terminate in December 2007, unless earlier terminated
pursuant to the terms of the Purchase Plan. The Board has the authority to
amend, terminate or extend the term of the Purchase Plan, except that no such
action may adversely affect any outstanding options previously granted under
the Purchase Plan and stockholder approval is required to increase the number
of shares that may be issued or change the terms of eligibility under the
Purchase Plan.
 
  401(k) Plan. The Board maintains the VeriSign, Inc. 401(k) Plan (the "401(k)
Plan"), a defined contribution plan intended to qualify under Section 401 of
the Internal Revenue Code. All eligible employees who are at least 18 years
old and have been employed by VeriSign for one month may participate in the
401(k) Plan. An eligible employee of VeriSign may begin to participate in the
401(k) Plan on the first day of January, April, July or October of the plan
year coinciding with or following the date on which such employee meets the
eligibility requirements. In connection with the acquisition of SecureIT,
VeriSign added an additional enrollment date in August 1998. A participating
employee may make pre-tax contributions of a whole percentage (not more than
15%) of his or her eligible compensation and up to 100% of any cash bonus,
subject to limitations under the federal tax laws ($10,000 in 1998). Employee
contributions and the investment earnings thereon are fully vested at all
times. The 401(k) Plan permits, but does not require, additional matching and
profit-sharing contributions by VeriSign on behalf of the participants.
VeriSign has not made matching or profit-sharing contributions. Contributions
by employees or VeriSign to the 401(k) Plan, and income earned on plan
contributions, are generally not taxable to employees until withdrawn, and
contributions by VeriSign, if any, should be deductible by VeriSign when made.
The trustee under the 401(k) Plan, at the direction of each participant,
invests the assets of the 401(k) Plan in selected investment options.
 
  Executive Loan Program of 1996. In November 1996, the Compensation Committee
adopted VeriSign's Executive Loan Program of 1996 (the "Executive Loan
Program"). Pursuant to the Executive Loan Program, VeriSign's Chief Executive
Officer and each Vice President (each a "Qualified Borrower") are each
entitled to borrow an aggregate of up to $250,000 from VeriSign. Each loan
made under the Executive Loan Program is a full recourse loan and bears
interest at the then-minimum interest rate to avoid imputation of income under
federal, state and local tax laws. Interest on any loan made under the
Executive Loan Program is due and payable on December 31 of each year in which
such loan is outstanding. Principal and accrued interest are payable in full
on any such loan upon the earlier of December 31, 2005 or 90 days after the
termination of the Qualified Borrower's employment, unless extended by a
separate written agreement approved by the Board. Each loan made under the
Executive Loan Program must be secured by collateral represented by common
stock or other marketable securities acceptable to the Board having a fair
market value equaling or exceeding the principal amount of the loan.
 
Compensation Arrangements
 
  Mr. Sclavos's employment offer letter of June 1995, as amended in October
1995, provided for an initial annual salary of $175,000 and an initial annual
bonus of up to $50,000 per year. In addition, it provided for a loan to Mr.
Sclavos of $48,000 which was to be forgiven after the first anniversary of Mr.
Sclavos's employment with VeriSign. This loan was forgiven by the Board in
October 1996. Mr. Sclavos was also granted an option to purchase 616,000
shares of common stock with an exercise price of $.12 per share. In October
1996, this option was amended such that it became immediately exercisable. Mr.
Sclavos exercised this option in full in November 1996. In connection with
this exercise, VeriSign loaned Mr. Sclavos $73,920 pursuant to the terms of
the Executive Loan Program, representing the full exercise price of such
option. As of December 31, 1998, 115,500 of the shares Mr. Sclavos received
upon exercise of the option were subject to a right of repurchase on behalf of
VeriSign. Mr. Sclavos has repaid in full his loan under the Executive Loan
Program. This right lapses as to 38,500 shares per quarter. Mr. Sclavos's
employment is "at will" and thus can be terminated at any time, with or
without cause.
 
                                      56
<PAGE>
 
  Dana L. Evan, Arnold Schaeffer and Richard A. Yanowitch were granted options
to purchase 170,000, 200,000 and 290,000 shares, respectively, of common stock
under the 1995 Stock Option Plan, at exercise prices ranging from $.12 to
$6.00. Each of these options is subject to the standard four-year vesting
schedule under the 1995 Stock Option Plan or, in certain circumstances, is
immediately exercisable, subject to VeriSign's right to repurchase shares
subject to such options, which repurchase right lapses on a schedule similar
to the vesting schedule for options granted under the 1995 Stock Option Plan.
However, upon the occurrence of certain change-in-control transactions, 50% of
each such Named Executive Officer's then-unvested options will become vested
or, if applicable, the right of repurchase will lapse as to 50% of the shares
covered by such right of repurchase.
 
Indemnification of Directors and Executive Officers and Limitation of
Liability
 
  As permitted by the Delaware General Corporation Law (the "DGCL"),
VeriSign's Certificate of Incorporation, includes a provision that eliminates
the personal liability of its directors for monetary damages for breach of
fiduciary duty as a director, except for liability:
 
  .  for any breach of the director's duty of loyalty to VeriSign or its
     stockholders;
 
  .  for acts or omissions not in good faith or that involve intentional
     misconduct or a knowing violation of law;
 
  .  under section 174 of the DGCL (regarding unlawful dividends and stock
     purchases); or
 
  .  for any transaction from which the director derived an improper personal
     benefit.
 
  As permitted by the DGCL, VeriSign's Amended and Restated Bylaws provide
that:
 
  .  VeriSign must indemnify its directors and officers to the fullest extent
     permitted by the DGCL, subject to certain very limited exceptions;
 
  .  VeriSign may indemnify its other employees and agents to the extent that
     it indemnifies its officers and directors, unless otherwise required by
     law, its Certificate of Incorporation, its Amended and Restated Bylaws,
     or agreement;
 
  .  VeriSign is required to advance expenses, as incurred, to its directors
     and executive officers in connection with a legal proceeding to the
     fullest extent permitted by the DGCL, subject to certain very limited
     exceptions; and
 
  .  the rights conferred in the Amended and Restated Bylaws are not
     exclusive.
 
  VeriSign has entered into Indemnification Agreements with each of its
current directors and certain of its executive officers and intends to enter
into such Indemnification Agreements with each of its other executive officers
to give such directors and executive officers additional contractual
assurances regarding the scope of the indemnification set forth in the
Certificate of Incorporation and Amended and Restated Bylaws and to provide
additional procedural protections. At present, there is no pending litigation
or proceeding involving a director, officer or employee of VeriSign regarding
which indemnification is sought, nor is VeriSign aware of any threatened
litigation that may result in claims for indemnification.
 
                                      57
<PAGE>
 
                             CERTAIN TRANSACTIONS
 
  In April 1995, VeriSign sold an aggregate of 4,688,333 shares of common
stock at a purchase price of $.12 per share to certain individuals and
entities. Among the purchasers was RSA, which acquired 4,000,000 shares. In
consideration for these shares, RSA assigned and transferred to VeriSign
equipment, assets and technology, which assets and technology included certain
specified software developed or under development by RSA relating to digital
certificate issuance and management, certain tangible personal property,
consisting mostly of computer and communications equipment, and all of RSA's
right, title and interest in certain specified agreements to provide digital
certificate services.
 
  In connection with the contribution of these assets to VeriSign, RSA entered
into a BSAFE/TIPEM OEM Master License Agreement with VeriSign. VeriSign was
granted a perpetual, royalty free, nonexclusive, worldwide license to other
services that VeriSign develops that contain or incorporate the RSA BSAFE and
TIPEM products and that relate to digital certificate issuing software,
software for the management of private keys and for digitally signing computer
files on behalf of others, software for customers to preview and forward
digital certificate requests to VeriSign, or such other products that, in
RSA's reasonable discretion, are reasonably necessary for the implementation
of a digital certificate business. RSA is also required to provide VeriSign
with maintenance and technical support for these products. RSA's BSAFE product
is a software tool kit that allows for the integration of encryption and
authentication features into software applications and TIPEM is a secure
e-mail development tool kit that allows for secure e-mail messages to be sent
using one vendor's e-mail product and read by another vendor's e-mail product.
In December 1998, VeriSign and RSA amended the BSAFE/TIPEM OEM Master License
Agreement to provide that VeriSign will subscribe to RSA's maintenance program
and pay to RSA a yearly maintenance fee equal to 50% of RSA's standard
published maintenance fees. In addition, RSA will have the right to include
root keys other than VeriSign's in products manufactured by third parties that
include RSA products which process digital certificates.
 
  Also in connection with this contribution of assets, RSA entered into a Non-
Compete and Non-Solicitation Agreement pursuant to which RSA agreed, for a
five-year period, not to compete with VeriSign's CA business.
 
  Since January 1, 1996, there has not been nor is there currently proposed,
any transaction or series of similar transactions to which VeriSign or any of
its subsidiaries was or is to be a party in which the amount involved exceeded
or will exceed $60,000 and in which any director, executive officer, holder of
more than 5% of the common stock of VeriSign or any member of the immediate
family of any of the foregoing persons had or will have a direct or indirect
material interest other than (1) compensation agreements and other
arrangements, which are described where required in "Management," and (2) the
transactions described below.
 
Transactions with Directors, Executive Officers and 5% Stockholders
 
  Prior to its initial public offering, VeriSign financed operations through a
series of private common stock and preferred stock financings. All shares of
preferred stock converted into shares of common stock at a conversion rate of
one share of common stock for each share of preferred stock upon the closing
of VeriSign's initial public offering in February 1998.
 
  Series B Preferred Stock. In February 1996, VeriSign sold an aggregate of
2,099,123 shares of Series B Preferred Stock at a cash purchase price of $2.45
per share to 12 entities. Among the purchasers were the following 5%
stockholders and entities affiliated with directors of VeriSign, who purchased
the number of shares set forth opposite their respective names: Kleiner
Perkins Caufield & Byers VII--1,153,207 shares; Bessemer Venture Partners
DCI--187,819 shares; KPCB VII Founders Fund--125,947 shares; Security
Dynamics-- 72,026 shares; KPCB Information Science Zaibatsu Fund II--32,799
shares; and First TZMM Investment Partnership--17,554 shares. Mr. Compton, a
director of VeriSign, is a general partner of the general partner of Kleiner
Perkins Caufield & Byers VII, KPCB VII Founders Fund and KPCB Information
Science Zaibatsu Fund II.
 
 
                                      58
<PAGE>
 
  Co-Sale Agreement. In February 1996, VeriSign, each of the purchasers of
Series B Preferred Stock and RSA entered into a Co-Sale Agreement, pursuant to
which the holders of Series B Preferred Stock were granted rights to
participate in certain sales of capital stock of VeriSign owned by RSA. Such
co-sale rights terminated upon the closing of VeriSign's initial public
offering.
 
  Investors' Rights Agreement. In November 1996, VeriSign, all of the current
holders of preferred stock and the purchasers of common stock in April 1995
entered into an Amended and Restated Investors' Rights Agreement (the
"Investors' Rights Agreement") pursuant to which the holders of all such
preferred or common stock (the "Investors") have certain registration rights
with respect to their shares of common stock following this offering. See
"Description of Capital Stock--Registration Rights." Pursuant to the terms of
the Investors' Rights Agreement, each of the Investors and Stratton Sclavos,
VeriSign's President and Chief Executive Officer and a director of VeriSign,
were granted a right of first offer with respect to certain future sales of
securities by VeriSign.
 
  Officer Loans. In November 1996, in connection with the exercise of stock
options granted under the 1995 Stock Option Plan, VeriSign permitted three
executive officers, Richard A. Yanowitch, Dana L. Evan and Stratton D. Sclavos
to purchase shares of common stock in exchange for promissory notes issued
under its Executive Loan Program in the amounts of $217,500, $93,750 and
$73,920, respectively. See "Management--Employee Benefit Plans--Executive Loan
Program of 1996." Each note is a recourse note that is secured by the shares
purchased with that note. The notes bear interest at the rate of 6.95% per
annum, payable on December 31 of each year, and are due and payable on the
earlier of December 31, 2005 or the date the borrowers' employment
relationship with VeriSign is terminated, unless otherwise extended by a
separate written agreement approved by the Board. During 1997 and 1998,
VeriSign paid bonuses in the amount of the interest accrued under each such
executive officer's promissory note. Mr. Yanowitch received bonuses of $23,603
in 1997 and $19,857 in 1998. Ms. Evan received bonuses of $10,174 in 1997 and
$6,904 in 1998. Mr. Sclavos received bonuses of $8,022 in 1997 and $5,625 in
1998. Mr. Sclavos and Ms. Evan have repaid their loans in full.
 
  Development Agreement. In September 1997, VeriSign and Security Dynamics,
the parent company of RSA, entered into a Master Development and License
Agreement (the "Development Agreement"). Mr. Bidzos, the Chairman of the Board
of VeriSign, is also a director of Security Dynamics. Pursuant to the
Development Agreement, VeriSign will develop a customized CA service based
upon VeriSign's WorldTrust platform in order to enable Security Dynamics to
offer a product with encryption and digital certificate functionality.
VeriSign has retained the ownership rights to the technology developed under
this agreement, except to the extent such technology constitutes derivatives
of Security Dynamics's pre-existing technology or such technology is solely
created by Security Dynamics. However, VeriSign granted Security Dynamics a
non-exclusive, royalty-free, perpetual, worldwide license to VeriSign's
intellectual property rights in VeriSign technology to the extent that the
technology is incorporated in the customized product being developed for
Security Dynamics, for the purpose of facilitating Security Dynamics'
derivative works or distributing the customized product to end users.
 
  In December 1998, VeriSign and Security Dynamics amended the Development
Agreement to grant Security Dynamics an exclusive license to incorporate the
developed technology into original equipment manufacturers', or OEMs, products
in order to create products incorporating the technology and to sublicense the
technology to licensees of the OEMs. In addition, VeriSign will use its best
efforts to transfer customer support services to Security Dynamics and to
assist in transferring its sales prospects to Security Dynamics.
 
  The Development Agreement provides that Security Dynamics will pay VeriSign
an aggregate of $2.7 million as an initial license fee, $900,000 of which was
paid in October 1997 and $1.4 million of which was paid during 1998. The
remaining $360,000 is scheduled to be paid upon completion of a milestone
during early 1999. At the time of the execution of the amendment in December
1998, Security Dynamics paid VeriSign $500,000. Once Security Dynamics has
received net revenues of $2.8 million from OEMs, it will pay VeriSign a
royalty equal to 18% of net revenues from the sale to OEMs or, if it is
greater, 18% of 60% of the current list price for the product. Security
Dynamics will not be obligated to pay any royalties to VeriSign with respect
to sales to VARs.
 
                                      59
<PAGE>
 
  In order for Security Dynamics to maintain its exclusivity rights, it must
make aggregate annual payments, which will be paid on a quarterly basis, of:
(1) $1.1 million during the first year of the agreement; (2) $2.3 million
during the second year of the agreement; (3) $3.0 million during the third
year of the agreement; and (4) $4.0 million during each of the fourth and
fifth years of the agreement.
 
  Security Dynamics may also elect not to maintain the exclusivity so long as
it gives 90 days notice prior to the end of a year and also pays to VeriSign
an amount equal to the remaining pre-payments to be made during that year as
well as an amount equal to the first two quarterly payments due for the
subsequent year.
 
  In addition VeriSign will be obligated to pay Security Dynamics an amount
equal to 8% of net revenue recognized by VeriSign during a VeriSign OnSite
customer's first year using VeriSign OnSite if the new VeriSign OnSite
customer had previously purchased products from Security Dynamics which
incorporate the developed technology.
 
  Commencing in March 1998, Security Dynamics is also required to pay VeriSign
a monthly product support fee for a three-year period, and thereafter for
successive annual terms. Either of the parties may elect to terminate such
product support within 60 days prior to the end of the term. Security Dynamics
may terminate support services at any time on 60 days prior written notice to
VeriSign. For a yearly fee, Security Dynamics can purchase product maintenance
services. During 1998 Security Dynamics paid both support and maintenance
fees, which were $105,000 in the aggregate. If Security Dynamics pays both
support and maintenance fees in future periods, such fees would aggregate
approximately $195,000 for a one-year period. For so long as Security Dynamics
is paying such maintenance fees, VeriSign will be obligated, at no additional
cost, to provide Security Dynamics with updates and enhancements that VeriSign
develops to the customized product and with non-exclusive first-to-market
access to new technologies developed by VeriSign that are relevant to the
business of providing enterprise security solutions or solutions for secure
business communications. VeriSign is also obligated, upon the request of
Security Dynamics, to make VeriSign's other technology available to Security
Dynamics and to offer maintenance after the term of the agreement on certain
"most favored pricing" terms.
 
  VeriSign believes that the terms of the Development Agreement, taken as a
whole, were no less favorable to VeriSign than VeriSign could have obtained
from unaffiliated third parties.
 
  Sublease with Security Dynamics. Since September 1996, VeriSign has sublet
approximately 12,700 square feet of space for its offices in Cambridge,
Massachusetts. This space is subleased from Security Dynamics pursuant to a
sublease that expired in March 1998. VeriSign made lease payments to Security
Dynamics of $17,646 during 1996, $179,000 during 1997 and $4,825 during 1998.
VeriSign also paid all electricity, heating, ventilation and air conditioning
costs for the subleased premises.
 
  Acquisition of SecureIT, Inc. In July 1998, VeriSign acquired SecureIT. In
connection with this acquisition, VeriSign issued approximately 1,666,000
shares of its common stock in exchange for all of the issued and outstanding
capital stock of SecureIT. Jagtar S. Chaudhry, the Vice President and General
Manager of Security Services of VeriSign, received 210,951 shares of
VeriSign's common stock in exchange for his shares of SecureIT stock. P. Jyoti
Chaudhry, his wife, received 1,071,239 shares of VeriSign common stock in
exchange for her shares of SecureIT stock. Three Chaudhry Family Trusts
received 65,922 shares of VeriSign common stock in exchange for their SecureIT
stock and a fourth Chaudhry Family Trust received 3,296 shares of VeriSign
common stock in exchange for its shares of SecureIT stock. In addition,
VeriSign granted the former shareholders of SecureIT certain registration
rights with respect to the VeriSign common stock they received in the
transaction. See "Description of Capital Stock--Registration Rights."
 
  Of the 1,666,186 shares issued in the SecureIT acquisition, 176,619 shares
are being held in escrow to secure the indemnification obligations under the
Agreement and Plan of Reorganization relating to the acquisition of SecureIT.
Of these shares, 10,000 are being held to secure an indemnification obligation
with respect to income taxation, which we refer to as the "Tax Escrow." These
escrow shares were withheld from the shares distributed to the former SecureIT
shareholders on a pro-rata basis based on their ownership of SecureIT
 
                                      60
<PAGE>
 
   
shares. This escrow will terminate on May 1, 1999. However, the escrow will
terminate with respect to the Tax Escrow when the applicable statute of
limitations pertaining to any taxes due expires.     
 
  VeriSign also entered into an Employment and Non-Competition Agreement with
Mr. Chaudhry. This employment agreement, which became effective on July 6,
1998, has a term of one-year and provides for a minimum annual base salary of
$125,000. In addition, Mr. Chaudhry will be eligible to receive an annual
bonus in an amount up to 30% of his base salary. Mr. Chaudhry was also granted
an option to purchase 100,000 shares of common stock at an exercise price of
$27.50 per share. In the event Mr. Chaudhry's employment is terminated without
cause or upon a "constructive termination" of his employment, he will be
entitled to receive the base salary remaining to be paid to him for the term
of the employment agreement. Once the initial term of this employment
agreement expires, Mr. Chaudhry's employment will be on an "at-will" basis.
 
Certain Business Relationships
 
  Legal Fees. During 1996, 1997 and 1998, the law firm of Tomlinson Zisko
Morosoli & Maser LLP, of which Mr. Tomlinson is a partner, provided legal
services to VeriSign on a variety of matters. VeriSign paid to or accrued for
Tomlinson Zisko Morosoli & Maser LLP an aggregate of $344,120 in 1996,
$239,051 in 1997 and approximately $617,000 in 1998.
 
  VeriSign believes that the terms of each of the transactions described
above, taken as a whole, were no less favorable to VeriSign than VeriSign
could have obtained from unaffiliated third parties.
 
                                      61
<PAGE>
 
                      PRINCIPAL AND SELLING STOCKHOLDERS
 
  The following table sets forth certain information with respect to the
beneficial ownership of VeriSign's common stock as of December 31, 1998 and as
adjusted to reflect the sale of the shares of common stock offered hereby by:
(i) each person who is known by VeriSign to own beneficially more than 5% of
VeriSign's common stock, (ii) each director of VeriSign, (iii) each of the
Named Executive Officers, (iv) all directors and executive officers of
VeriSign as a group and (v) each Selling Stockholder.
 
<TABLE>   
<CAPTION>
                                              Shares Beneficially                      Shares Beneficially
                                            Owned Prior to Offering        Number of   Owned After Offering
                                            ----------------------------    Shares     --------------------
Name of Beneficial Owner                      Number        Percent(1)   Being Offered  Number   Percent(2)
- ------------------------                    -------------- ------------- ------------- --------- ----------
Named Executive Officers, Directors and 5%
Stockholders
- ------------------------------------------
<S>                                         <C>            <C>           <C>           <C>       <C>
D. James Bidzos (3).......................       3,811,674         16.5%      20,000   2,791,674    11.7%
Security Dynamics Technologies, Inc. (3)..       3,611,591         15.7    1,000,000   2,611,591    10.9
Jagtar Chaudhry (4).......................       1,483,252          6.4      269,436   1,113,816     4.7
William Chenevich (5).....................         604,115          2.6           --     604,115     2.5
Stratton D. Sclavos (6)...................         502,250          2.2       53,153     449,097     1.9
Kevin R. Compton (7)......................         462,360          2.0           --     462,360     1.9
David J. Cowan (8)........................         284,189          1.2           --     284,189     1.2
Richard A. Yanowitch (9)..................         229,997          1.0       23,153     206,844       *
Arnold Schaeffer (10).....................         115,625            *       23,153      92,472       *
Dana L. Evan (11).........................         107,963            *       23,153      84,810       *
Quentin P. Gallivan (12)..................          13,438            *        7,388       6,050       *
Timothy Tomlinson (13)....................          23,269            *           --      23,269       *
All officers and directors as a group
 (11 persons) (14)........................       7,638,132         32.9    1,419,436   6,118,696    25.5
<CAPTION>
Other Selling Stockholders
- --------------------------
<S>                                         <C>            <C>           <C>           <C>       <C>
P. Jyoti Chaudhry (4).....................       1,483,252          6.4      100,000   1,113,816     4.7
Jay W. Johnson ...........................          97,531            *       22,040      75,491       *
George and Lana Valente Foundation .......          82,403            *       20,524      61,879       *
Messiah Lutheran Church...................           3,000            *        3,000          --       *
</TABLE>    
- --------
  *  Less than 1% of VeriSign's outstanding common stock
   
Notes: (1) Percentage ownership is based on 23,075,359 outstanding as of
           December 31, 1998, and 23,910,359 shares outstanding after the
           offering. Shares of common stock subject to options currently
           exercisable or exercisable within 60 days of December 31, 1998, are
           deemed outstanding for the purpose of computing the percentage
           ownership of the person holding such options but are not deemed
           outstanding for computing the percentage ownership of any other
           person. Unless otherwise indicated below, the persons and entities
           named in the table have sole voting and sole investment power with
           respect to all shares beneficially owned, subject to community
           property laws where applicable.     
 
       (2) Assumes the underwriters' over-allotment option to purchase 375,000
           shares of common stock is not exercised.
 
       (3) Represents 3,611,591 shares held of record by Security Dynamics or
           by wholly-owned subsidiaries thereof, 93,000 shares held of record
           by D. James Bidzos, 83,750 shares held of record by Kairdos L.L.C.
           and 23,333 shares subject to options held of record by D. James
           Bidzos that are exercisable within 60 days of December 31, 1998.
           The number of shares being offered represents 10,000 shares offered
           for the account of Mr. Bidzos and 10,000 shares offered for the
           account of Kairdos L.L.C. Mr. Bidzos, the Chairman of the Board of
           VeriSign, is the President of RSA, an Executive Vice President and
           a director of Security Dynamics and the General Manager and a
           member of Kairdos L.L.C. Mr. Bidzos disclaims beneficial ownership
           of the shares held by Kairdos L.L.C. except for
 
                                      62
<PAGE>
 
           his proportional interest therein, and disclaims beneficial ownership
           of the shares held by Security Dynamics or its wholly-owned
           subsidiaries. The address for Mr. Bidzos and Security Dynamics is
           20 Crosby Drive, Bedford, Massachusetts 01730.
 
       (4) Represents 60,951 shares held by Jagtar Chaudhry, 921,239 shares
           held by P. Jyoti Chaudhry, his wife, 300,000 shares held by
           Chaudhry Enterprises and 65,922, 65,922, 65,922 and 3,296 shares
           held by four Chaudhry Family Trusts for the benefit of Simran D.
           Chaudhry, Yash P. Chaudhry, Samir R. Chaudhry and Manpreet Bains,
           respectively. Jagtar Chaudhry is the Vice President of and General
           Manager of Security Services of VeriSign.
 
           Includes an aggregate of 519,000 shares subject to the "zero-cost
           collar" arrangements described below. Mr. Chaudhry's wife and the
           trusts for the benefit of Simran Chaudhry, Yash P. Chaudhry and
           Samir R. Chaudhry entered into "zero-cost collar" arrangements
           pursuant to which such person wrote a call option and purchased a
           put option. These options become exercisable on January 5, 2000 and
           also expire on that date. Only one of the options can be "in the
           money" on the expiration date, at which time, the "in the money"
           option will be exercised and settled for cash and the other option
           will expire. If neither option is "in the money," both options will
           expire. Mr. Chaudhry's wife entered into such an arrangement with
           respect to 342,198 shares and each of the trusts entered into an
           arrangement with respect to 58,934 shares.
 
           Also includes 143,238 shares held by Mr. and Mrs. Chaudhry, the
           Chaudhry Family Trusts and Chaudhry Enterprises which are subject to
           the escrow to secure the indemnification obligations contained in
           the Agreement and Plan of Reorganization relating to the acquisition
           of SecureIT. The escrow is described under "Certain Transactions."
           The address for P. Jyoti and Jagtar Chaudhry, Chaudhry Enterprises
           and the Chaudhry Family Trusts is c/o SecureIT, 5550 Triangle
           Parkway Suite 100, Norcross, Georgia 30092.
   
           The number of shares being offered represents 100,000 shares offered
           for the account of Mrs. Chaudhry, 266,489 shares offered for the
           account of Chaudhry Enterprises and 2,947 shares offered for the
           account of the Chaudhry Family Trust for the benefit of Manpreet
           Bains.     
 
       (5) Represents 594,052 shares held by VISA International Service
           Association, 7,563 shares subject to options held of record by VISA
           International Service Association that are exercisable with 60 days
           of December 31, 1998, and 2,500 shares held of record by William
           Chenovich, director of VeriSign. Mr. Chenevich is the Group
           Executive Vice President, Data Processing Systems of VISA.
 
       (6) Includes 5,000 shares held of record by Stratton or Jody Sclavos as
           Custodians under UTMA for Nicholas L. Sclavos, 5,000 shares held of
           record by Stratton or Jody Sclavos as Custodians under UTMA for
           Alexandra C. Sclavos and an aggregated 2,010 shares held in trust
           for the six nieces and nephews of Stratton Sclavos. Also includes
           31,250 shares subject to options held of record by Stratton D.
           Sclavos that are exercisable within 60 days of December 31, 1998.
           Mr. Sclavos is President, Chief Executive Officer and a director of
           VeriSign. Of the shares shown in the table, as of December 31,
           1998, 115,500 were subject to a repurchase right that lapses as to
           38,500 of the shares each quarter.
   
           The number of shares being offered represents 43,143 shares offered
           for the account of Mr. Sclavos, 4,000 shares offered for the account
           of Stratton or Jody Sclavos as Custodians under UTMA for Alexandra
           C. Sclavos, 4,000 shares offered for the account of Stratton or Jody
           Sclavos as Custodians under UTMA for Nicholas L. Sclavos and an
           additional 2,010 shares, representing 335 shares offered for the
           accounts of each of the six nieces and nephews of Mr. Sclavos.     
 
       (7) Represents 437,318 shares held of record by Kleiner Perkins
           Caufield & Byers VII L.P., 16,541 shares held of record by Kevin
           Compton, 6,250 shares subject to options held of record by Kevin
           Compton that are exercisable within 60 days of December 31, 1998,
           and 2,251 shares subject to options held of record by Kleiner
           Perkins Caufield & Byers VII L.P. that are exercisable within 60
           days of December 31, 1998. Mr. Compton, a director of VeriSign, is
           a general partner of the general partner of each of these entities.
           Mr. Compton disclaims beneficial ownership of shares held by such
 
                                      63
<PAGE>
 
           entities except for his proportional interest therein. The address
           for Mr. Compton and these entities is c/o Kleiner Perkins Caufield &
           Byers, 2750 Sand Hill Road, Menlo Park, California 94025.
 
       (8) Represents 247,966 shares held of record by Bessemer Venture
           Partners DCI, 3,750 shares held by Deer III & Co. and 7,563 shares
           subject to options held of record by Deer III & Co. LLC that are
           exercisable within 60 days of December 31, 1998. Mr. Cowan, a
           director of VeriSign, is a general partner of the general partner
           of Bessemer Venture Partners DCI and is a manager of Deer III & Co.
           LLC. Mr. Cowan disclaims beneficial ownership of shares held by
           Bessemer Venture Partners DCI except for his proportional interest
           therein. The address for Mr. Cowan and Bessemer Venture Partners
           DCI is 535 Middlefield Road, Menlo Park, California 94025.
 
       (9) Mr. Yanowitch is Vice President of Marketing of VeriSign. Of the
           shares shown in the table, as of December 31, 1998, 108,750 were
           subject to a repurchase right that lapses as to 18,125 of the
           shares each quarter.
 
      (10) Includes 11,125 shares subject to options held of record by Arnold
           Schaeffer that are exercisable within 60 days of December 31, 1998.
           Mr. Schaeffer is Vice President of Engineering of VeriSign. Of the
           shares shown in the table, as of December 31, 1998, 45,000 were
           subject to a repurchase right that lapses as to 8,875 of the shares
           each quarter.
 
      (11) Includes 5,000 shares held of record by Ms. Evan as Custodian under
           UTMA for Christopher Thomas Evan, 5,000 shares held of record by
           Ms. Evan as Custodian under UTMA for Ryan Joseph Evan and 14,063
           shares subject to options held of record by Dana Evan that are
           exercisable within 60 days of December 31, 1998. Ms. Evan is Vice
           President of Finance and Administration and Chief Financial Officer
           of VeriSign. Of the shares shown in the table, as of December 31,
           1998, 46,875 were subject to a repurchase right that lapses as to
           7,812 of the shares each quarter.
 
      (12) Includes 7,194 shares subject to options held of record by Quentin
           Gallivan that are exercisable within 60 days of December 31, 1998.
           Mr. Gallivan is Vice President of Worldwide Sales of VeriSign.
 
      (13) Includes 500 shares held of record by the Joy E. Tomlinson 1996
           Trust, 500 shares held of record by the Tucker Tomlinson 1996 Trust
           and 3,813 shares subject to options held of record by TZM
           Investment Fund that are exercisable within 60 days of December 31,
           1998. Mr. Tomlinson is a general partner of TZM Investment Fund and
           a trustee of each trust.
 
      (14) Includes the shares described in footnotes (3)-(13).
 
                                      64
<PAGE>
 
                         DESCRIPTION OF CAPITAL STOCK
 
  As of December 31, 1998, there were outstanding 23,075,359 shares of common
stock, each with a par value of $.001, held of record by approximately 235
stockholders, and outstanding options to purchase 4,129,444 shares of common
stock.
 
  The following summary of certain provisions of the common stock and
preferred stock does not purport to be complete and is subject to, and
qualified in its entirety by, the provisions of VeriSign's Certificate of
Incorporation, which is included as an exhibit to the registration statement,
of which this prospectus forms a part, and by the provisions of applicable
law.
 
Common Stock
 
  VeriSign is authorized to issue 50,000,000 shares of common stock. Subject
to preferences that may be applicable to any preferred stock outstanding at
the time, the holders of outstanding shares of common stock are entitled to
receive dividends out of assets legally available therefor at such times and
in such amounts as the Board from time to time may determine. Holders of
common stock are entitled to one vote for each share held on all matters
submitted to a vote of stockholders. Cumulative voting for the election of
directors is authorized by the Certificate of Incorporation, which means that
the holders of a majority of the shares voted can elect all of the directors
then standing for election. The common stock is not entitled to preemptive
rights and is not subject to conversion or redemption. Upon liquidation,
dissolution or winding-up of VeriSign, the assets legally available for
distribution to stockholders are distributable ratably among the holders of
the common stock and any participating preferred stock outstanding at that
time after payment of liquidation preferences, if any, on any outstanding
preferred stock and payment of other claims of creditors. Each outstanding
share of common stock is, and all shares of common stock to be outstanding
upon completion of this offering will be upon payment therefor, duly and
validly issued, fully paid and nonassessable.
 
Preferred Stock
 
  VeriSign is authorized to issue up to 5,000,000 shares of "blank check"
preferred stock. The Board is authorized, subject to any limitations
prescribed by Delaware law, to provide for the issuance of preferred stock in
one or more series, to establish from time to time the number of shares to be
included in each such series, to fix the rights, preferences and privileges of
the shares of each wholly unissued series and any qualifications, limitations
or restrictions thereon, and to increase or decrease the number of shares of
any such series (but not below the number of shares of such series then
outstanding), without any further vote or action by the stockholders. The
Board may authorize the issuance of preferred stock with voting or conversion
rights that could adversely affect the voting power or other rights of the
holders of common stock. The issuance of preferred stock may have the effect
of delaying, deferring or preventing a change in control of VeriSign and may
adversely affect the market price of the common stock, and the voting and
other rights of the holders of common stock. VeriSign has no current plan to
issue any shares of preferred stock.
 
Registration Rights
 
  The holders of approximately 5,132,218 shares of common stock (the
"Holders") have certain rights to cause VeriSign to register those shares (the
"Registrable Securities") under the Securities Act. The holders of at least a
majority of the Registrable Securities may require that VeriSign use best
efforts to effect up to two registrations. Holders not part of the initial
registration demand are entitled to notice of such registration and are
entitled to include shares of Registrable Securities therein. These
registration rights are subject to certain conditions and limitations,
including the right, under certain circumstances, of the underwriters of an
offering to limit the number of shares included in such registration and the
right of VeriSign to delay the filing of a registration statement for not more
than 120 days after receiving the registration demand. VeriSign is obligated
to pay all registration expenses incurred in connection with such
registration, other than underwriters' discounts and commissions, and the
reasonable fees and expenses of a single counsel to the selling Holders.
 
                                      65
<PAGE>
 
  In addition, if VeriSign proposes to register any securities under the
Securities Act in connection with the sale of such securities solely for cash,
the Holders are entitled to notice of such registration and are entitled to
include Registrable Securities therein. These rights do not apply to a
registration relating to securities to be sold under one of VeriSign's stock
plans or common stock issuable upon conversion of debt securities. These
rights are subject to certain conditions and limitations, including the right
of the underwriters of an offering to limit the number of shares included in
such registration under certain circumstances. VeriSign is obligated to pay
all registration expenses incurred in connection with such registration other
than underwriters' discounts and commissions.
 
  The Holders may also require VeriSign, on no more than two occasions in any
twelve-month period, to register all or a portion of their Registrable
Securities on Form S-3 under the Securities Act when such form becomes
available for use by VeriSign, if the securities to be so registered represent
an aggregate selling price to the public of not less than $1.0 million. The
Holders who are not part of the initial registration demand are entitled to
notice of such registration and are entitled to include shares of Registrable
Securities therein. These registration rights are subject to certain
conditions and limitations, including the right of VeriSign to delay the
filing of a registration statement on Form S-3 for a period of not more than
60 days after receiving the registration demand. VeriSign is obligated to pay
all registration expenses incurred in connection with such registration, other
than underwriters' discounts and commissions.
 
  Each stockholder's registration rights will expire upon the earlier of
February 4, 2003, or at such time as the stockholder can sell all of its
securities under Rule 144(k).
 
  The former shareholders of SecureIT have certain registration rights with
respect to the approximately 1,666,000 shares of VeriSign common stock issued
to them in connection with the acquisition of SecureIT. These stockholders
have "piggy back registration rights" which require VeriSign to use its best
efforts to include up to 416,547 shares in any registration statement filed
prior to January 30, 1999. In addition, anytime after January 30, 1999, these
stockholders may require VeriSign to file a registration statement on Form S-3
and keep such registration statement continuously effective until July 6,
1999. This registration statement could cover up to 833,094 shares of VeriSign
common stock, less any shares for which these holders have exercised piggyback
registration rights. Since these holders have elected to exercise their
piggyback registration rights with respect to 415,000 shares in this offering,
VeriSign would be required to include 418,094 shares, plus any shares included
in the registration statement of which this prospectus is a part which remain
unsold.
 
Delaware Anti-Takeover Law and Certain Charter and Bylaw Provisions
 
  VeriSign is subject to the provisions of Section 203 of the Delaware General
Corporation Law (the "Anti-Takeover Law") regulating corporate takeovers. The
Anti-Takeover Law prevents certain Delaware corporations from engaging, under
certain circumstances, in a "business combination," which includes a merger or
sale of more than 10% of the corporation's assets with any "interested
stockholder." An "interested stockholder" is a stockholder who owns 15% or
more of the corporation's outstanding voting stock, as well as affiliates and
associates of any such persons. This restriction applies for three years
following the date that such stockholder became an "interested stockholder"
unless:
 
  .  the transaction is approved by the Board of Directors prior to the date
     the "interested stockholder" attained such status;
 
  .  upon consummation of the transaction that resulted in the stockholder's
     becoming an "interested stockholder," the "interested stockholder" owned
     at least 85% of the voting stock of the corporation outstanding at the
     time the transaction commenced (excluding those shares owned by (1)
     persons who are directors and also officers and (2) employee stock plans
     in which employee participants do not have the right to determine
     confidentially whether shares held subject to the plan will be tendered
     in a tender or exchange offer); or
 
                                      66
<PAGE>
 
  .  if on or subsequent to that date the "business combination" is approved
     by the Board of Directors and authorized at an annual or special meeting
     of stockholders by the affirmative vote of at least two-thirds of the
     outstanding voting stock that is not owned by the "interested
     stockholder."
 
  A Delaware corporation may "opt out" of the Anti-Takeover Law with the
approval of a majority of the corporation's outstanding shares, however
VeriSign has not done so. The statute could prohibit or delay mergers or other
takeover or change-in-control attempts with respect to VeriSign and,
accordingly, may discourage attempts to acquire VeriSign.
 
  VeriSign's Certificate of Incorporation and Amended Restated Bylaws provide
for the division of the Board into three classes as nearly equal in size as
possible with staggered three-year terms. The classification of the Board
could have the effect of making VeriSign more difficult for a third party to
acquire, or of discouraging a third party from acquiring, control of VeriSign.
In addition, the Amended and Restated Bylaws provide that any action required
or permitted to be taken by the stockholders at an annual meeting or special
meeting of stockholders may only be taken if it is properly brought before
such meeting and may not be taken by written action in lieu of a meeting. The
Amended and Restated Bylaws provide that special meetings of the stockholders
may only be called by the Chairman of the Board, the Chief Executive Officer
or, if none, VeriSign's President or by the Board.
 
  VeriSign's Certificate of Incorporation and Amended and Restated Bylaws
provide that VeriSign will indemnify officers and directors against losses
that they may incur in investigations and legal proceedings resulting from
their services to VeriSign, which may include services in connection with
takeover defense measures. Such provisions may have the effect of preventing
changes in the management of VeriSign.
 
Transfer Agent and Registrar
 
  The Transfer Agent and Registrar for VeriSign's common stock is ChaseMellon
Shareholder Services, L.L.C.
 
                                      67
<PAGE>
 
                        SHARES ELIGIBLE FOR FUTURE SALE
 
  Future sales of substantial amounts of common stock in the public market
could adversely affect prevailing market prices from time to time.
   
  Upon completion of this offering, VeriSign will have outstanding an
aggregate of 23,910,359 shares of common stock, assuming no exercise of the
underwriters' over-allotment option and no exercise of outstanding options. Of
these shares, 17,913,229 shares, including all of the shares sold in the
offering, are freely tradeable without restriction or further registration
under the Securities Act, unless such shares are purchased by "affiliates" of
VeriSign as that term is defined in Rule 144 under the Securities Act (the
"Affiliates"). As a result of certain contractual restrictions described
below, 4,745,944 additional shares will be eligible for sale 90 days after the
date of this prospectus, with all of such shares subject to the volume
limitations and other conditions of Rule 144 described below; and the
remaining 1,251,186 of the shares will become eligible for sale in July 1999,
subject to the volume limitations and other conditions of Rule 144.     
 
  All executive officers and certain directors and stockholders of VeriSign
have agreed not to offer, pledge, sell, contract to sell, sell any option or
contract to purchase, purchase any option or contract to sell, grant any
option, right or warrant to purchase, or otherwise transfer or dispose of,
directly or indirectly (or enter into any swap or other arrangement that
transfers to another, in whole or in part, any of the economic consequences of
ownership of), any shares of common stock or any securities convertible into
or exercisable or exchangeable for shares of common stock, for a period of 90
days after the date of this prospectus, without the prior written consent of
Morgan Stanley & Co. Incorporated. Morgan Stanley & Co. Incorporated may in
its sole discretion choose to release a certain number of these shares from
such restrictions prior to the expiration of such 90 day period.
 
  In general, under Rule 144 as currently in effect, a person (or persons
whose shares are aggregated) who has beneficially owned Restricted Shares for
at least one year including the holding period of any prior owner except an
Affiliate would be entitled to sell within any three-month period a number of
shares that does not exceed the greater of: (i) 1% of the number of shares of
common stock then outstanding (which will equal approximately 238,253 shares
immediately after this offering); or (ii) the average weekly trading volume of
the common stock on the Nasdaq National Market during the four calendar weeks
preceding the filing of a notice on Form 144 with respect to such sale. Sales
under Rule 144 are also subject to certain manner of sale provisions and
notice requirements and to the availability of current public information
about VeriSign.
 
  Upon completion of this offering, the holders of approximately 5,132,218
shares of common stock will be entitled to certain rights with respect to the
registration of such shares under the Securities Act. Of these holders, the
former shareholders of SecureIT have the right to require VeriSign to file a
registration statement on Form S-3 to register for resale an aggregate of
approximately 418,000 shares of common stock held by them. See "Description of
Capital Stock--Registration Rights." Registration of such shares under the
Securities Act would result in such shares becoming freely tradable without
restriction under the Securities Act immediately upon the effectiveness of
such registration.
 
  VeriSign filed registration statements under the Securities Act covering
5,461,389 shares of common stock subject to outstanding options or reserved
for future issuance under its stock plans. See "Management--Employee Benefit
Plans." VeriSign also filed a registration statement on Form S-8 with respect
to the 208,809 shares of common stock subject to stock options assumed in
connection with the acquisition of SecureIT. As of December 31, 1998, options
to purchase a total of 4,129,444 shares were outstanding and 711,596 shares
were reserved for future issuance under VeriSign's stock plans. Accordingly,
shares registered under such registration statements will, subject to Rule 144
volume limitations applicable to Affiliates, be available for sale in the open
market, beginning 90 days after the date of the prospectus, unless such shares
are subject to vesting restrictions.
 
                                      68
<PAGE>
 
                                 UNDERWRITERS
 
  Under the terms and subject to the conditions contained in an Underwriting
Agreement dated the date hereof (the "Underwriting Agreement"), the
underwriters named below, for whom Morgan Stanley & Co. Incorporated,
Hambrecht & Quist LLC, Dain Rauscher Wessels, a division of Dain Rauscher
Incorporated ("Dain Rauscher Wessels") and BancBoston Robertson Stephens are
acting as representatives, have severally agreed to purchase, and VeriSign and
the Selling Stockholders have agreed to sell to them, severally, the
respective number of shares of common stock set forth opposite the names of
such underwriters below:
 
<TABLE>
<CAPTION>
                                                                       Number of
    Name                                                                Shares
    ----                                                               ---------
<S>                                                                    <C>
Morgan Stanley & Co. Incorporated.....................................
Hambrecht & Quist LLC.................................................
Dain Rauscher Wessels ................................................
BancBoston Robertson Stephens.........................................
                                                                       ---------
    Total............................................................. 2,400,000
                                                                       =========
</TABLE>
 
  The Underwriting Agreement provides that the obligations of the several
underwriters to pay for and accept delivery of the shares of common stock
offered hereby are subject to the approval of certain legal matters by their
counsel and to certain other conditions. The underwriters are obligated to
take and pay for all of the shares of common stock offered hereby (other than
those covered by the underwriters' over-allotment option described below) if
any such shares are taken.
 
  The underwriters initially propose to offer part of the shares of common
stock directly to the public at the public offering price set forth on the
cover page hereof and part to certain dealers at a price that represents a
concession not in excess of $   a share under the public offering price. Any
underwriter may allow, and such dealers may reallow, a concession not in
excess of $   a share to other underwriters or to certain dealers. After the
initial offering of the shares of common stock, the offering price and other
selling terms may from time to time be varied by the representatives.
 
  VeriSign has granted to the underwriters an option, exercisable for 30 days
from the date of this prospectus, to purchase up to an aggregate of 360,000
additional shares of common stock at the public offering price set forth on
the cover page hereof, less underwriting discounts and commissions. The
underwriters may exercise such option solely for the purpose of covering over-
allotments, if any, made in connection with the offering of the shares of
common stock offered hereby. To the extent such option is exercised, each
underwriter will become obligated, subject to certain conditions, to purchase
approximately the same percentage of such additional shares of common stock as
the number set forth next to such underwriter's name in the preceding table
bears to the total number of shares of common stock set forth next to the
names of all underwriters in the preceding table.
 
  Each of VeriSign and the directors, executive officers and certain other
stockholders of VeriSign has agreed that, without the prior written consent of
Morgan Stanley & Co. Incorporated on behalf of the underwriters, it will not
during the period ending 90 days after the date of this prospectus (i) offer,
pledge, sell, contract to sell, sell any option or contract to purchase,
purchase any option or contract to sell, grant any option, right or warrant to
purchase or otherwise transfer, lend or dispose of, directly or indirectly,
any shares of common stock or any securities convertible into or exercisable
or exchangeable for common stock or (ii) enter into any swap or other
arrangement that transfers to another, in whole or in part, any of the
economic consequences of ownership of the common stock, whether any such
transaction described in clause (i) or (ii) above is to be settled by delivery
of common stock or such other securities, in cash or otherwise, except under
certain limited circumstances. The restrictions described in this paragraph to
not apply to (a) the sale of shares to the underwriters, (b) the issuance
 
                                      69
<PAGE>
 
by VeriSign of shares of common stock upon exercise of an option or a warrant
outstanding on the date of this prospectus and described as such in the
prospectus, (c) the issuance by VeriSign of shares of common stock under the
Equity Incentive Plan, the Directors Plan and the Purchase Plan or (d)
transactions by any person other than VeriSign relating to shares of common
stock or other securities acquired in open market transactions after the
completion of the offering of the shares.
 
  In order to facilitate the offering of the common stock, the underwriters
may engage in transactions that stabilize, maintain or otherwise affect the
price of the common stock. Specifically, the underwriters may over-allot in
connection with the offering, creating a short position in the common stock
for their own account. In addition, to cover over-allotments or to stabilize
the price of the common stock, the underwriters may bid for, and purchase,
shares of common stock in the open market. Finally, the underwriting syndicate
may reclaim selling concessions allowed to an underwriter or a dealer for
distributing the common stock in the offering, if the syndicate repurchases
previously distributed common stock in transactions to cover syndicate short
positions, in stabilization transactions or otherwise. Any of these activities
may stabilize or maintain the market price of the common stock above
independent market levels. The underwriters are not required to engage in
these activities, and may end any of these activities at any time.
 
  The underwriters and dealers may engage in passive market making
transactions in the common stock in accordance with Rule 103 of Regulation M
promulgated by the Securities and Exchange Commission. In general, a passive
market maker may not bid for, or purchase, the common stock at a price that
exceeds the highest independent bid. In addition, the net daily purchases made
by any passive market maker generally may not exceed 30% of its average daily
trading volume in the common stock during a specified two month period, or 200
shares, whichever is greater. A passive market maker must identify passive
market making bids as such or maintain the market price of the common stock
above independent market levels. Underwriters and dealers are not required to
engage in passive market making and may end passive market making activities
at any time.
 
  VeriSign, the Selling Stockholders and the underwriters have agreed to
indemnify each other against certain liabilities, including liabilities under
the Securities Act.
 
                                      70
<PAGE>
 
                                 LEGAL MATTERS
 
  Fenwick & West LLP, Palo Alto, California, will pass upon the validity of
the shares of common stock offered by VeriSign in this prospectus. Wilson
Sonsini Goodrich & Rosati, Professional Corporation, Palo Alto, California
will pass upon certain legal matters in connection with this offering for the
underwriters.
 
                                    EXPERTS
   
  VeriSign has included the consolidated financial statements of VeriSign,
Inc. and subsidiaries as of December 31, 1996 and 1997, and for the period
from April 12, 1995 (inception) to December 31, 1995, and for each of the
years in the two-year period ended December 31, 1997 in the prospectus and the
Registration Statement in reliance upon the report of KPMG LLP, independent
auditors, appearing elsewhere herein, and upon the authority of said firm as
experts in accounting and auditing.     
 
                            ADDITIONAL INFORMATION
 
  VeriSign has filed with the Securities and Exchange Commission (the
"Commission"), Washington, D.C. 20549, a Registration Statement on Form S-1
under the Securities Act with respect to the shares of common stock offered by
this prospectus. This prospectus, which constitutes a part of the Registration
Statement, does not contain all of the information set forth in the
Registration Statement and the exhibits thereto. VeriSign has omitted certain
items in accordance with the rules and regulations of the Commission. For
further information with respect to VeriSign and the common stock offered by
this prospectus, reference is made to the Registration Statement and the
exhibits thereto. Statements contained in this prospectus regarding the
contents of any contract or any other document to which the prospectus makes
reference are not necessarily complete. In each instance, we advise you to
refer to the copy of the contract or other document filed as an exhibit to the
Registration Statement. Each such statement is qualified in all respects by
such reference. You may inspect a copy of the Registration Statement, and the
exhibits and schedule thereto, without charge at the public reference
facilities maintained by the Commission in Room 1024, 450 Fifth Street, N.W.,
Washington, D.C. 20549, and at the Commission's regional offices located at
the Northwestern Atrium Center, 500 West Madison Street, Suite 1400, Chicago,
Illinois 60661 and Seven World Trade Center, 13th Floor, New York, New York
10048. You may obtain copies of all or any part of the Registration Statement
from any of those offices by paying the fees prescribed by the Commission. The
Commission maintains a World Wide Web site that contains reports, proxy and
information statements and other information regarding registrants that file
electronically with the Commission. The address of the site is
http://www.sec.gov.
 
                             AVAILABLE INFORMATION
 
  VeriSign is subject to the informational requirements of the Exchange Act
and, in accordance therewith, files reports, proxy statements and other
information with the Commission. Such reports, proxy statements and other
information filed by VeriSign can be inspected and copied at the public
reference facilities maintained by the Commission at Room 1024, 450 Fifth
Street, N.W., Washington D.C. 20549 and at the Commission's regional offices
located at 7 World Trade Center, Suite 1300, New York, New York 10048 and 500
West Madison Street, Suite 1400, Chicago, Illinois 60661. Copies of such
material can also be obtained from the Public Reference Section of the
Commission at 450 Fifth Street, N.W., Washington, D.C. 20549, at prescribed
rates. The Commission also makes electronic filings publicly available on the
Internet within 24 hours of acceptance. The Commission's Internet address is
http://www.sec.gov. The Commission website also contains reports, proxy and
information statements and other information regarding registrants that file
electronically with the Commission.
 
 
                                      71
<PAGE>
 
                                 VERISIGN, INC.
 
                   INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                         <C>
Independent Auditors' Report............................................... F-2
Consolidated Balance Sheets................................................ F-3
Consolidated Statements of Operations...................................... F-4
Consolidated Statements of Stockholders' Equity............................ F-5
Consolidated Statements of Cash Flows...................................... F-7
Notes to Consolidated Financial Statements................................. F-8
</TABLE>
 
                                      F-1
<PAGE>
 
                         INDEPENDENT AUDITORS' REPORT
 
To the Board of Directors and Stockholders of
VeriSign, Inc.:
 
  We have audited the accompanying consolidated balance sheets of VeriSign,
Inc. and subsidiaries as of December 31, 1996 and 1997, and the related
consolidated statements of operations, stockholders' equity, and cash flows
for the period from April 12, 1995 (inception) to December 31, 1995, and for
each of the years in the two-year period ended December 31, 1997. These
consolidated financial statements are the responsibility of the Company's
management. Our responsibility is to express an opinion on these consolidated
financial statements based on our audits.
 
  We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements. An audit
also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation.
 
  In our opinion, the consolidated financial statements referred to above
present fairly, in all material respects, the financial position of VeriSign,
Inc. and subsidiaries as of December 31, 1996 and 1997, and the results of
their operations and their cash flows for the period from April 12, 1995
(inception) to December 31, 1995, and for each of the years in the two-year
period ended December 31, 1997, in conformity with generally accepted
accounting principles.
                                             
                                          KPMG LLP     
 
Mountain View, California
December 18, 1998
 
                                      F-2
<PAGE>
 
                        VERISIGN, INC. AND SUBSIDIARIES
 
                          CONSOLIDATED BALANCE SHEETS
                       (In thousands, except share data)
 
<TABLE>
<CAPTION>
                                                December 31,
                                              ------------------  September 30,
                                                1996      1997        1998
                                              --------  --------  -------------
                                                                   (Unaudited)
<S>                                           <C>       <C>       <C>
                   Assets
Current assets:
  Cash and cash equivalents.................. $ 30,006  $  4,942    $ 18,102
  Short-term investments.....................       --     7,951      24,366
  Accounts receivable, net of allowance for
   doubtful accounts of $35, $286 and $455,
   respectively..............................      762     3,390       8,470
  Prepaid expenses and other current assets..      786       994       2,351
                                              --------  --------    --------
    Total current assets.....................   31,554    17,277      53,289
Property and equipment, net..................    4,617     8,756       9,378
Other assets, net............................      366       871         976
                                              --------  --------    --------
                                              $ 36,537  $ 26,904    $ 63,643
                                              ========  ========    ========
    Liabilities and Stockholders' Equity
Current liabilities:
  Notes payable.............................. $    258  $     --    $     --
  Accounts payable...........................    2,468     3,504       5,505
  Accrued liabilities........................    2,096     2,346       4,024
  Deferred revenue...........................    1,944     5,267      10,461
                                              --------  --------    --------
    Total current liabilities................    6,766    11,117      19,990
                                              --------  --------    --------
Minority interest in subsidiary..............    1,251     2,246       1,297
                                              --------  --------    --------
Commitments
Stockholders' equity:
  Preferred stock, $.001 par value; 5,000,000
   shares authorized in 1998; no shares
   issued....................................       --        --          --
  Convertible preferred stock, $.001 par
   value;
   10,282,883 shares authorized in 1996 and
   1997;
   10,031,006 shares issued and outstanding
   in 1996 and 1997..........................       10        10          --
  Common stock, $.001 par value; 21,592,117
   shares authorized in 1996 and 1997,
   50,000,000 shares authorized in 1998;
   7,859,962, 8,786,426 and 22,732,876 shares
   issued and outstanding, respectively......        8         9          23
  Additional paid-in capital.................   41,327    45,417      91,496
  Notes receivable from stockholders.........     (543)     (644)       (582)
  Deferred compensation......................       --      (380)       (302)
  Accumulated deficit........................  (12,282)  (30,871)    (48,279)
                                              --------  --------    --------
    Total stockholders' equity...............   28,520    13,541      42,356
                                              --------  --------    --------
                                              $ 36,537  $ 26,904    $ 63,643
                                              ========  ========    ========
</TABLE>
 
          See accompanying Notes to Consolidated Financial Statements.
 
                                      F-3
<PAGE>
 
                        VERISIGN, INC. AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF OPERATIONS
                     (In thousands, except per share data)
 
<TABLE>
<CAPTION>
                           Period from
                          April 12, 1995    Year Ended       Nine Months Ended
                          (Inception) to   December 31,        September 30,
                           December 31,  ------------------  ------------------
                               1995        1996      1997      1997      1998
                          -------------- --------  --------  --------  --------
                                                                (Unaudited)
<S>                       <C>            <C>       <C>       <C>       <C>
Revenues................     $   382     $  1,356  $ 13,356  $  8,360  $ 25,719
                             -------     --------  --------  --------  --------
Costs and expenses:
  Cost of revenues......         412        2,791     9,689     6,172    13,467
  Sales and marketing...         790        4,885    11,826     7,732    16,449
  Research and
   development..........         642        2,058     5,303     3,643     6,242
  General and
   administrative.......         680        2,681     5,039     3,147     5,842
  Special charges.......          --           --     2,800     2,000     3,555
                             -------     --------  --------  --------  --------
    Total costs and
     expenses...........       2,524       12,415    34,657    22,694    45,555
                             -------     --------  --------  --------  --------
    Operating loss......      (2,142)     (11,059)  (21,301)  (14,334)  (19,836)
Other income (expense)..         148          (67)    1,174       872     1,677
                             -------     --------  --------  --------  --------
    Loss before minority
     interest...........      (1,994)     (11,126)  (20,127)  (13,462)  (18,159)
Minority interest in net
 loss of subsidiary.....          --          838     1,538     1,194       950
                             -------     --------  --------  --------  --------
    Net loss............     $(1,994)    $(10,288) $(18,589) $(12,268) $(17,209)
                             =======     ========  ========  ========  ========
Basic and diluted net
 loss per share.........     $  (.43)    $  (2.07) $  (2.61) $  (1.54) $   (.82)
                             =======     ========  ========  ========  ========
Shares used in per share
 computation............       4,689        4,960     7,121     7,988    21,042
                             =======     ========  ========  ========  ========
</TABLE>
 
 
          See accompanying Notes to Consolidated Financial Statements.
 
                                      F-4
<PAGE>
 
                        VERISIGN, INC. AND SUBSIDIARIES
 
                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
                       (In thousands, except share data)
 
<TABLE>
<CAPTION>
                             Convertible                                    Notes
                           Preferred Stock    Common Stock    Additional  Receivable  Deferred Accumu-      Total
                          ----------------- -----------------  Paid-in       from     Compen-   lated   Stockholders'
                            Shares   Amount  Shares    Amount  Capital   Stockholders  sation  Deficit     Equity
                          ---------- ------ ---------  ------ ---------- ------------ -------- -------  -------------
<S>                       <C>        <C>    <C>        <C>    <C>        <C>          <C>      <C>      <C>
Issuance of common stock
 to founders............          --  $ --    688,333   $ 1     $   82       $ --       $ --   $    --     $    83
Issuance of common stock
 to a founder in
 exchange for equipment,
 other assets and
 technology.............          --    --  4,000,000     4        115         --         --        --         119
Issuance of common
 stock..................          --    --      4,500    --         --         --         --        --          --
Issuance of Series A
 convertible preferred
 stock..................   4,306,883     4         --    --      5,164         --         --        --       5,168
Net loss................          --    --         --    --         --         --         --    (1,994)     (1,994)
                          ----------  ----  ---------   ---     ------       ----       ----   -------     -------
Balances as of December
 31, 1995...............   4,306,883     4  4,692,833     5      5,361         --         --    (1,994)      3,376
Issuance of Series B
 convertible preferred
 stock..................  .2,099,123     2         --    --      5,141         --         --        --       5,143
Issuance of Series C
 convertible preferred
 stock..................   3,625,000     4         --    --     28,192         --         --        --      28,196
Exercise of common stock
 options................          --    --  1,637,375     2        559       (543)        --        --          18
Issuance of common
 stock..................          --    --  1,529,754     1         11         --         --        --          12
Issuance of capital
 stock by subsidiary to
 minority interest......          --    --         --    --      2,063         --         --        --       2,063
Net loss................          --    --         --    --         --         --         --   (10,288)    (10,288)
                          ----------  ----  ---------   ---     ------       ----       ----   -------     -------
Balances as of December
 31, 1996...............  10,031,006    10  7,859,962     8     41,327       (543)        --   (12,282)     28,520
Deferred compensation
 related to common stock
 options, net of
 amortization of $34....          --    --         --    --        414         --       (380)       --          34
Exercise of common stock
 options and advance to
 stockholder............          --    --    532,781     1        244       (116)        --        --         129
Issuance of common
 stock..................          --    --    121,808    --        642         --         --        --         642
Issuance of common stock
 for litigation
 settlement.............          --    --    250,000    --      2,000         --         --        --       2,000
Issuance of common stock
 for preferred provider
 agreement..............          --    --    100,000    --        800         --         --        --         800
Repurchase of common
 stock..................          --    --    (78,125)   --        (10)        10         --        --          --
Payments on notes
 receivable from
 stockholders...........          --    --         --    --         --          5         --        --           5
Net loss................          --    --         --    --         --         --         --   (18,589)    (18,589)
                          ----------  ----  ---------   ---     ------       ----       ----   -------     -------
Balances as of December
 31, 1997...............  10,031,006    10  8,786,426     9     45,417       (644)      (380)  (30,871)     13,541
</TABLE>
                                                                     (Continued)
 
          See accompanying Notes to Consolidated Financial Statements.
 
                                      F-5
<PAGE>
 
                        VERISIGN, INC. AND SUBSIDIARIES
 
          CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY--(Continued)
                       (In thousands, except share data)
 
<TABLE>
<CAPTION>
                             Convertible                                      Notes
                           Preferred Stock      Common Stock    Additional  Receivable  Deferred Accumu-       Total
                          ------------------- -----------------  Paid-in       from     Compen-   lated    Stockholders'
                            Shares     Amount   Shares   Amount  Capital   Stockholders  sation  Deficit      Equity
                          -----------  ------ ---------- ------ ---------- ------------ -------- --------  -------------
<S>                       <C>          <C>    <C>        <C>    <C>        <C>          <C>      <C>       <C>
Balances as of
 December 31, 1997......   10,031,006   $10    8,786,426  $ 9    $45,417      $(644)     $(380)  $(30,871)    $13,541
Amortization of deferred
 compensation related to
 common stock options
 (unaudited)............           --    --           --   --         --         --         78         --          78
Compensation charge
 related to acceleration
 of performance-based
 stock options
 (unaudited)............           --    --           --   --      1,176         --                    --       1,176
Exercise of common stock
 options (unaudited)....           --    --      385,569   --        392         --         --         --         392
Issuance of common stock
 (unaudited)............           --    --       21,650   --         79         --         --         --          79
Issuance of common stock
 for initial public
 offering, net of
 expenses of $4,561
 (unaudited)............                 --    3,450,000    4     43,739         --         --         --      43,743
Issuance of common stock
 under employee stock
 purchase plan
 (unaudited)............           --    --       58,225   --        693         --         --         --         693
Conversion of preferred
 stock to common stock
 (unaudited)............  (10,031,006)  (10)  10,031,006   10         --         --         --         --          --
Subchapter S
 distributions of
 SecureIT, Inc.
 (unaudited)............           --    --           --   --         --         --         --       (199)       (199)
Payments on notes
 receivable from
 stockholders
 (unaudited)............           --    --           --   --         --         62         --         --          62
Net loss (unaudited)....           --    --           --   --         --         --         --    (17,209)    (17,209)
                          -----------   ---   ----------  ---    -------      -----      -----   --------     -------
Balances as of
 September 30, 1998
 (unaudited)............           --   $--   22,732,876  $23    $91,496      $(582)     $(302)  $(48,279)    $42,356
                          ===========   ===   ==========  ===    =======      =====      =====   ========     =======
</TABLE>
 
          See accompanying Notes to Consolidated Financial Statements.
 
                                      F-6
<PAGE>
 
                        VERISIGN, INC. AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (In thousands)
 
<TABLE>
<CAPTION>
                          Period from
                         April 12, 1995    Year Ended       Nine Months Ended
                         (Inception) to   December 31,        September 30,
                          December 31,  ------------------  ------------------
                              1995        1996      1997      1997      1998
                         -------------- --------  --------  --------  --------
                                                               (Unaudited)
<S>                      <C>            <C>       <C>       <C>       <C>
Cash flows from
 operating activities:
  Net loss..............    $(1,994)    $(10,288) $(18,589) $(12,268) $(17,209)
  Adjustments to
   reconcile net loss to
   net cash provided by
   operating activities:
    Special charges.....         --           --     2,800     2,000        --
    Depreciation and
     amortization.......         52          559     2,621     1,546     2,862
    Minority interest in
     net loss of
     subsidiary.........         --         (838)   (1,538)   (1,194)     (950)
    Stock-based
     compensation.......         --           --        34        13     1,254
    Loss on disposal of
     property and
     equipment..........         --           --        63       156        40
    Changes in operating
     assets and
     liabilities:
      Accounts
       receivable.......       (195)        (567)   (2,628)   (2,261)   (5,080)
      Prepaid expenses
       and other current
       assets...........        (79)        (708)     (208)       59    (1,357)
      Accounts payable..        437        2,054     1,036      (810)    2,001
      Accrued
       liabilities......        216        1,880       250        83     1,678
      Deferred revenue..         42        1,898     3,323     1,386     5,194
                            -------     --------  --------  --------  --------
Net cash used in
 operating activities...     (1,521)      (6,010)  (12,836)  (11,290)  (11,567)
                            -------     --------  --------  --------  --------
Cash flows from
 investing activities:
  Purchases of short-
   term investments.....         --           --   (11,209)  (11,208)  (48,500)
  Maturities and sales
   of short-term
   investments..........         --           --     3,258     3,498    32,085
  Purchases of property
   and equipment........     (1,008)      (4,168)   (6,823)   (5,655)   (3,506)
  Other assets..........        (35)        (281)     (505)     (480)     (122)
                            -------     --------  --------  --------  --------
Net cash used for
 investing activities...     (1,043)      (4,449)  (15,279)  (13,845)  (20,043)
                            -------     --------  --------  --------  --------
Cash flows from
 financing activities:
  Proceeds from bank
   borrowings...........         --          258     2,420     1,167        --
  Repayment of bank
   borrowings...........         --           --    (2,678)       --        --
  Proceeds from issuance
   of convertible
   preferred stock......      5,168       33,339        --        --        --
  Proceeds from issuance
   of common stock, net
   of repurchases.......         83           30       771       636    44,907
  Collections on notes
   receivable from
   stockholders                  --           --         5        --        62
  Subchapter S
   distributions by
   SecureIT, Inc. ......         --           --        --        --      (199)
  Issuance of capital
   stock by subsidiary
   to minority
   interest.............         --        4,151     2,533        --        --
                            -------     --------  --------  --------  --------
Net cash provided by
 financing activities...      5,251       37,778     3,051     1,803    44,770
                            -------     --------  --------  --------  --------
Net increase (decrease)
 in cash and cash
 equivalents............      2,687       27,319   (25,064)  (23,332)   13,160
Cash and cash
 equivalents at
 beginning of period....         --        2,687    30,006    30,006     4,942
                            -------     --------  --------  --------  --------
Cash and cash
 equivalents at end of
 period.................    $ 2,687     $ 30,006  $  4,942  $  6,674  $ 18,102
                            =======     ========  ========  ========  ========
Noncash investing and
 financing activities:
  Issuance of common
   stock to a founder
   for equipment, other
   assets and
   technology...........    $   119     $     --  $     --  $     --  $     --
                            =======     ========  ========  ========  ========
  Conversion of
   convertible preferred
   stock to common stock    $    --     $     --  $     --  $     --  $     --
                            =======     ========  ========  ========  ========
  Issuance of notes
   receivable
   collateralized by
   common stock.........    $    --     $    543  $    116  $    116  $     --
                            =======     ========  ========  ========  ========
</TABLE>
 
          See accompanying Notes to Consolidated Financial Statements.
 
                                      F-7
<PAGE>
 
                        VERISIGN, INC. AND SUBSIDIARIES
 
                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
            December 31, 1995, 1996 and 1997 and September 30, 1998
      (Information as of September 30, 1998 and for the nine months ended
                  September 30, 1997 and 1998 is unaudited.)
 
(1) Description of Business and Summary of Significant Accounting Policies
 
  VeriSign, Inc. (the "Company") was incorporated in Delaware in April 1995
when RSA Data Security, Inc. ("RSA") contributed equipment, other assets, and
technology for common stock. This transfer of nonmonetary assets was recorded
at the founder's historical cost basis. The Company provides Internet-based
trust services needed by websites, enterprises and individuals to conduct
trusted and secure electronic commerce and communications over the Internet,
intranets and extranets ("IP Networks"). The Company provides both public and
private certificate authority services to organizations needing digital
certificates for website authentication, intranet and extranet access control,
electronic commerce services and virtual private network connections.
 
  Consolidation
 
  The accompanying consolidated financial statements include the accounts of
the Company and its subsidiaries after elimination of intercompany accounts
and transactions. As of December 31, 1997 and September 30, 1998, the Company
owned approximately 50.5% of the outstanding shares of capital stock of its
subsidiary, VeriSign Japan. The Company accounts for changes in its
proportionate share of the net assets of VeriSign Japan resulting from sales
of capital stock by the subsidiary as equity transactions.
 
  Interim Financial Information
 
  The financial information as of September 30, 1998 and for the nine months
ended September 30, 1997 and 1998 is unaudited but includes all adjustments,
consisting only of normal recurring adjustments, that the Company considers
necessary for the fair presentation of the Company's operating results and
cash flows for such periods. Results for the nine months ended September 30,
1998 are not necessarily indicative of the results to be expected for the full
fiscal year of 1998 or for any future period.
 
  Foreign Currency Translation
 
  The functional currency for the Company's international subsidiaries is the
U.S. dollar; however, the subsidiaries' books of record are maintained in
local currency. As a result, the subsidiaries' financial statements are
remeasured into U.S. dollars using a combination of current and historical
exchange rates and any remeasurement adjustments are included in net loss,
along with all transaction gains and losses for the period.
 
  Cash, Cash Equivalents and Short-Term Investments
 
  The Company considers all highly liquid investments with maturities of three
months or less at the date of acquisition to be cash equivalents. Cash and
cash equivalents include money market funds, commercial paper and various
deposit accounts.
 
  Investments held by the Company are classified as "available-for-sale" and
are carried at fair value based on quoted market prices. Such investments
consist of commercial paper, medium term notes, foreign government bonds and
corporate bonds with original maturities beyond 3 months and less than 12
months. Unrealized gains and losses as of December 31, 1996 and 1997 and
September 30, 1998, and realized gains and losses for the periods presented
were not material.
 
                                      F-8
<PAGE>
 
                        VERISIGN, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)
 
            December 31, 1995, 1996 and 1997 and September 30, 1998
      (Information as of September 30, 1998 and for the nine months ended
                  September 30, 1997 and 1998 is unaudited.)
 
 
  Property and Equipment
 
  Property and equipment are stated at cost less accumulated depreciation.
Depreciation is calculated using the straight-line method over the estimated
useful lives of the assets, generally three to five years.
 
  Revenue Recognition
 
  Revenues from the sale or renewal of digital certificates are deferred and
recognized ratably over the life of the digital certificate, generally 12
months. Revenues from the sale of digital certificate software modules to
distributors and affiliates are recognized upon delivery of the software and
signing of an agreement, provided the fee is fixed and determinable,
collectibility is probable and the arrangement does not require significant
production, modification or customization of the software. Revenues from
consulting and training services are recognized using the percentage-of-
completion method, based on the ratio of costs incurred to total estimated
costs for fixed-fee development arrangements or as the services are provided
for time-and-materials arrangements. Revenues are recognized ratably over the
term of the agreement for support and maintenance services. To the extent
costs incurred and anticipated costs to complete fixed-fee contracts in
progress exceed anticipated billings, a loss is accrued for the excess. To
date, the Company has not experienced such losses. Deferred revenue
principally consists of payments for unexpired digital certificates.
 
  For software transactions entered into after January 1, 1998, the Company
adopted the American Institute of Certified Public Accountants' ("AICPA")
Statement of Position ("SOP") No. 97-2, Software Revenue Recognition. SOP No.
97-2 generally requires revenue earned on software arrangements involving
multiple elements to be allocated to each element based on its relative fair
value. The fair value of the element must be based on objective evidence that
is specific to the vendor. If a vendor does not have objective evidence of the
fair value of all elements in a multiple-element arrangement, all revenue from
the arrangement must be deferred until such evidence exists or until all
elements have been delivered. The adoption of SOP No. 97-2 did not have a
material effect on the Company's operating results.
 
  Research and Development Costs
 
  Research and development costs are expensed as incurred. Costs incurred
subsequent to establishing technological feasibility, in the form of a working
model, are capitalized and amortized over their estimated useful lives. To
date, software development costs incurred after technological feasibility has
been established have not been material.
 
  Income Taxes
 
  The Company uses the asset and liability method to account for income taxes.
Deferred tax assets and liabilities are recognized for the future tax
consequences attributable to differences between the financial statement
carrying amounts of existing assets and liabilities and their respective tax
bases. Deferred tax assets and liabilities are measured using enacted tax
rates expected to apply to taxable income in the years in which those
temporary differences are expected to be recovered or settled. The effect on
deferred tax assets and liabilities of a change in tax rates is recognized in
income in the period that includes the enactment date. A valuation allowance
is recorded for deferred tax assets whose realization is not sufficiently
likely.
 
  Stock-Based Compensation
 
  The Company accounts for its equity-based compensation plan using the
intrinsic value method.
 
                                      F-9
<PAGE>
 
                        VERISIGN, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)
 
            December 31, 1995, 1996 and 1997 and September 30, 1998
      (Information as of September 30, 1998 and for the nine months ended
                  September 30, 1997 and 1998 is unaudited.)
 
 
  Net Loss Per Share
   
  Basic and diluted net loss per share has been computed using the weighted-
average number of common shares outstanding during the period. The Company has
excluded all convertible preferred stock and outstanding stock options from
the calculation of diluted net loss per share because such securities would
have been anti-dilutive for all periods presented. For the year ended December
31, 1995, 4,306,883 shares of convertible preferred stock and for each of the
years ended December 31, 1996 and 1997 and the nine months ended September 30,
1997, 10,031,006 shares of convertible preferred stock were excluded from the
calculation of diluted net loss per share in each period. There were no shares
of convertible preferred stock outstanding at September 30, 1998. For the
years ended December 31, 1995, 1996 and 1997 and the nine months ended
September 30, 1997 and 1998, 1,274,750 shares, 1,608,075 shares, 2,592,789
shares, 2,164,956 shares and 3,504,145 shares, respectively, related to
outstanding stock options were excluded from the calculation of diluted net
loss per share.     
 
  Other Comprehensive Income (Loss)
 
  The Company has no material components of other comprehensive income (loss).
 
  Concentration of Credit Risk, Related Party Transactions and Significant
Customers
 
  Financial instruments that potentially subject the Company to significant
concentrations of credit risk consist principally of cash, cash equivalents,
short-term investments, and accounts receivable. The Company maintains its
cash, cash equivalents, and short-term investments with high quality financial
institutions and, as part of its cash management process, performs periodic
evaluations of the relative credit standing of these financial institutions.
The Company also performs ongoing credit evaluations of its customers and,
generally, requires no collateral from its customers. The Company maintains an
allowance for potential credit losses, but to date has not experienced
significant write-offs. For the years ended December 31, 1995, 1996 and 1997
the Company added approximately $30,000, $22,000 and $387,000, respectively,
to its allowance for doubtful accounts through charges to bad debt expense.
Write-offs of uncollectible amounts totaled zero, $17,000 and $136,000 in
these periods, respectively.
 
  The Company provided services to VISA International Services Association
("VISA"), a 4% stockholder of the Company, under an agreement that included
development and ongoing operations of a digital certificate system for VISA's
member banks. VISA accounted for approximately 21%, 10%, 12% and 4% of the
Company's revenues for the years ended December 31, 1996 and 1997 and the nine
months ended September 30, 1997 and 1998, respectively, and 13%, 7% and 8% of
accounts receivable as of December 31, 1996 and 1997 and September 30, 1998,
respectively.
 
  The Company entered into a development agreement in September 1997 with
Security Dynamics Technologies, Inc. ("Security Dynamics"), the parent company
of RSA, a 19% stockholder of the Company, to develop a customized certificate
authority product in order to enable Security Dynamics to offer a product with
encryption and digital certificate authority functionality. The development
agreement provided that Security Dynamics pay the Company an aggregate of $2.7
million as an initial license fee, $900,000 of which was paid in October 1997
and the remainder of which is payable upon the achievement of certain
milestones. The Company records revenue related to the development agreement
using the percentage-of-completion method. Revenue from the development
agreement accounted for approximately 4%, 3% and 6% of the Company's revenues
for the year ended December 31, 1997 and the nine months ended September 30,
1997 and 1998, respectively. Security Dynamics accounted for approximately 9%
of accounts receivable at September 30, 1998.
 
                                     F-10
<PAGE>
 
                        VERISIGN, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)
 
            December 31, 1995, 1996 and 1997 and September 30, 1998
      (Information as of September 30, 1998 and for the nine months ended
                  September 30, 1997 and 1998 is unaudited.)
 
 
  At December 31, 1996, the Company had two customers, a South African systems
integrator and a financial services provider, that accounted for approximately
28% and 13%, respectively, of accounts receivable. The Company had no other
customers that accounted for more than 10% of accounts receivable or more than
10% of revenues for any of the dates or periods presented.
 
  Impairment of Long-Lived Assets
 
  The Company reviews property and equipment for impairment whenever events or
changes in circumstances indicate that the carrying amount of an asset may not
be recoverable. Recoverability of property and equipment is measured by
comparison of its carrying amount to future net cash flows the property and
equipment are expected to generate. If such assets are considered to be
impaired, the impairment to be recognized is measured by the amount by which
the carrying amount of the property and equipment exceeds its fair market
value. To date, no adjustments to the carrying value of the Company's long-
lived assets have been required.
 
  Use of Estimates
 
  The preparation of consolidated financial statements in conformity with
generally accepted accounting principles requires management to make estimates
and assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the
consolidated financial statements and reported amounts of revenues and
expenses during the reporting period. Actual results could differ from those
estimates.
 
  Recent Accounting Pronouncements
 
  In March 1998, the American Institute of Certified Public Accountants
("AICPA") issued Statement of Position ("SOP") No. 98-1, Accounting for the
Costs of Computer Software Developed or Obtained for Internal Use. SOP No. 98-
1 requires that entities capitalize certain costs related to internal-use
software once certain criteria have been met. The Company expects that the
adoption of SOP No. 98-1 will have no material impact on its financial
position, results of operations or cash flows. The Company will be required to
implement SOP No. 98-1 for the year ending December 31, 1999.
 
  In April 1998, the AICPA issued SOP No. 98-5, Reporting on the Costs of
Start-Up Activities. SOP No. 98-5 requires that all start-up costs related to
new operations must be expenses as incurred. In addition, all start-up costs
that were capitalized in the past must be written off when SOP No. 98-5 is
adopted. The Company expects that the adoption of SOP No. 98-5 will have no
material impact on its financial position, results of operations or cash
flows. The Company will be required to implement SOP No. 98-5 for the year
ending December 31, 1999.
 
  In June 1998 the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards ("SFAS") No. 133, Accounting for Derivative
Instruments and Hedging Activities. SFAS No. 133 established methods of
accounting for derivative financial instruments and hedging activities related
to those instruments as well as other hedging activities. Because the Company
currently holds no derivative instruments and does not engage in hedging
activities, the Company expects that the adoption of SFAS No. 133 will have no
material impact on its financial position, results of operations or cash
flows. The Company will be required to implement SFAS No. 133 for the year
ending December 31, 2000.
 
                                     F-11
<PAGE>
 
                        VERISIGN, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)
 
            December 31, 1995, 1996 and 1997 and September 30, 1998
      (Information as of September 30, 1998 and for the nine months ended
                  September 30, 1997 and 1998 is unaudited.)
 
 
(2)  Business Combination
 
  In July 1998, VeriSign completed a merger with SecureIT, Inc. ("SecureIT")
(hereafter collectively referred to as the "Company"). SecureIT is a provider
of Internet and enterprise security solutions comprising a full range of
products and services to assist clients with assessing, designing and
implementing security solutions. The merger was effected by exchanging
approximately 1,666,000 shares of VeriSign common stock for all of the
outstanding common stock of SecureIT. Each share of SecureIT was exchanged for
0.164806 of one share of VeriSign common stock. In addition, outstanding
SecureIT employee stock options were converted at the same exchange ratio into
options to purchase approximately 190,000 shares of VeriSign common stock.
 
  The merger constituted a tax-free reorganization and has been accounted for
as a pooling-of-interests under Accounting Principles Board Opinion No. 16,
"Business Combinations." Accordingly, all prior period financial statements
have been restated to include the combined results of operations, financial
position and cash flows of SecureIT as if it had always been a part of
VeriSign. There were no intercompany transactions between VeriSign and
SecureIT prior to the combination that required elimination and there were no
material adjustments required to conform SecureIT's accounting policies to
those of VeriSign. The Company recognized special charges of approximately
$3.6 million in connection with the acquisition (see Note 11).
 
  The results of operations previously reported by the separate companies and
the combined amounts presented in the consolidated financial statements are
summarized below.
 
<TABLE>
<CAPTION>
                                                    Year Ended       Six Months
                                                   December 31,         Ended
                                                 ------------------   June 30,
                                                   1996      1997       1998
                                                 --------  --------  -----------
                                                                     (Unaudited)
                                                        (In thousands)
   <S>                                           <C>       <C>       <C>
   Revenues:
     VeriSign, Inc.............................. $  1,351  $  9,382   $  9,303
     SecureIT, Inc..............................        5     3,974      5,911
                                                 --------  --------   --------
       Combined................................. $  1,356  $ 13,356   $ 15,214
                                                 ========  ========   ========
   Net income (loss):
     VeriSign, Inc.............................. $(10,243) $(19,195)  $(10,092)
     SecureIT, Inc..............................      (45)      606        600
                                                 --------  --------   --------
       Combined................................. $(10,288) $(18,589)  $ (9,492)
                                                 ========  ========   ========
</TABLE>
 
                                     F-12
<PAGE>
 
                        VERISIGN, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)
 
            December 31, 1995, 1996 and 1997 and September 30, 1998
      (Information as of September 30, 1998 and for the nine months ended
                   September 30, 1997 and 1998 is unaudited.)
 
 
(3) Cash, Cash Equivalents and Short-Term Investments
 
  Available-for-sale securities included in cash, cash equivalents and short-
term investments are as follows:
 
<TABLE>
<CAPTION>
                                                        December
                                                           31,
                                                       ----------- September 30,
                                                       1996  1997      1998
                                                       ---- ------ -------------
                                                                    (Unaudited)
                                                            (In thousands)
   <S>                                                 <C>  <C>    <C>
   Corporate bonds.................................... $ -- $3,244    $ 1,999
   Money market funds.................................  521  4,300      1,644
   U.S. government and agency securities..............   84  1,000         --
   Commercial paper...................................   --  1,060     23,479
   Foreign government bonds...........................   --     --      4,028
   Medium term notes..................................   --     --      8,306
                                                       ---- ------    -------
                                                       $605 $9,604    $39,456
                                                       ==== ======    =======
   Included in cash and cash equivalents.............. $605 $1,653    $15,090
                                                       ==== ======    =======
   Included in short-term investments................. $ -- $7,951    $24,366
                                                       ==== ======    =======
</TABLE>
 
(4) Property and Equipment
 
  Property and equipment are summarized as follows:
 
<TABLE>
<CAPTION>
                                                   December 31,
                                                  -------------- September 30,
                                                   1996   1997       1998
                                                  ------ ------- -------------
                                                                  (Unaudited)
                                                         (In thousands)
   <S>                                            <C>    <C>     <C>
   Computer equipment and purchased software..... $3,501 $ 8,107    $10,565
   Office equipment, furniture and fixtures......    792   1,444      1,714
   Leasehold improvements........................    934   2,425      3,128
                                                  ------ -------    -------
                                                   5,227  11,976     15,407
   Less accumulated depreciation and
    amortization.................................    610   3,220      6,029
                                                  ------ -------    -------
                                                  $4,617 $ 8,756    $ 9,378
                                                  ====== =======    =======
</TABLE>
 
(5) Accrued Liabilities
 
  A summary of accrued liabilities follows:
 
<TABLE>
<CAPTION>
                                                    December 31,
                                                    ------------- September 30,
                                                     1996   1997      1998
                                                    ------ ------ -------------
                                                                   (Unaudited)
                                                          (In thousands)
   <S>                                              <C>    <C>    <C>
   Employee compensation........................... $  566 $1,443    $1,994
   Professional fees...............................    354     95       381
   Financing charges...............................    732     --        --
   Other...........................................    444    808     1,649
                                                    ------ ------    ------
                                                    $2,096 $2,346    $4,024
                                                    ====== ======    ======
</TABLE>
 
                                      F-13
<PAGE>
 
                        VERISIGN, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)
 
            December 31, 1995, 1996 and 1997 and September 30, 1998
      (Information as of September 30, 1998 and for the nine months ended
                  September 30, 1997 and 1998 is unaudited.)
 
 
(6) Notes Payable
 
  The Company's Japanese subsidiary had an available credit facility of
250,000,000 yen with a bank, which bore interest at a rate of 1.625% per annum
and expired in December 1997. Borrowings were secured by certain assets of the
subsidiary. As of December 31, 1996, borrowings under this facility aggregated
$258,000.
 
  The Company's Japanese subsidiary had available a revolving line of credit
with a bank that provided up to $500,000, bore interest at 1.625% per annum
and expired in May 1998. The line of credit was secured by a letter of credit
in the same amount from the Company. There were no borrowings under this
arrangement as of December 31, 1997.
 
  In January 1997, the Company entered into an agreement for a non-revolving
equipment line of credit with a financing company that provides up to
$3,000,000, bears interest at 7.50% per annum and expires in March 1999. The
line of credit is secured by the Company's fixed assets. The Company is
obligated to grant a warrant to purchase up to 17,500 shares of common stock
at $8.00 per share in the event the Company borrows funds under the equipment
line of credit. There were no borrowings under this arrangement as of December
31, 1997.
 
(7) Stockholders' Equity
 
  Initial Public Offering
 
  On January 30, 1998, the Company completed its initial public offering (the
"IPO") issuing 3,450,000 shares of its common stock (including 450,000 shares
issued upon the exercise of the underwriters' over-allotment option) at an
initial public offering price of $14 per share. The net proceeds to the
Company from the offering, after deducting underwriting discounts and
commissions and offering expenses incurred by the Company, were approximately
$43.7 million. Concurrently with the IPO, each outstanding share of the
Company's convertible preferred stock was automatically converted into one
share of common stock.
 
  Preferred Stock
 
  The Company is authorized to issue up to 5,000,000 shares of preferred
stock. As of September 30, 1998, no shares of preferred stock had been issued.
 
  Convertible Preferred Stock
 
  In April 1995, the Company issued 4,306,883 shares of Series A convertible
preferred stock to previously unrelated third parties, except for 425,000
shares issued to Security Dynamics. In February 1996, the Company issued
2,099,123 shares of Series B convertible preferred stock. A majority of the
shares were issued to a previously unrelated third party venture capitalist
and the remainder were issued to existing investors, including Security
Dynamics and VISA. In November and December 1996, the Company issued 3,625,000
shares of Series C convertible preferred stock to previously unrelated third
parties.
 
                                     F-14
<PAGE>
 
                        VERISIGN, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)
 
            December 31, 1995, 1996 and 1997 and September 30, 1998
      (Information as of September 30, 1998 and for the nine months ended
                  September 30, 1997 and 1998 is unaudited.)
 
 
  As of December 31, 1997, convertible preferred stock consisted of the
following:
 
<TABLE>
<CAPTION>
                                                           Shares
                                                Shares   Issued and  Liquidation
   Series                                     Authorized Outstanding Preference
   ------                                     ---------- ----------- -----------
   <S>                                        <C>        <C>         <C>
   A........................................   4,306,883  4,306,883  $ 5,168,260
   B........................................   2,101,000  2,099,123  $ 5,037,895
   C........................................   3,875,000  3,625,000  $29,000,000
                                              ---------- ----------  -----------
                                              10,282,883 10,031,006  $39,206,155
                                              ========== ==========  ===========
</TABLE>
 
  The rights preferences and privileges of the holders of convertible
preferred stock were as follows:
 
  .  The holders of Series A, B and C preferred stock were entitled to
     noncumulative dividends, if and when declared by the Board of Directors,
     of $.10, $.20 and $.64 per share, respectively.
 
  .  Shares of preferred stock were convertible to common stock at any time
     at the rate of one share of common stock for each share of convertible
     preferred stock. The convertible preferred stock automatically converted
     to common stock upon the closing of the IPO.
 
  .  The holders of convertible preferred stock were protected by certain
     antidilutive provisions.
 
  .  The shares of Series A, B and C convertible preferred stock had a
     liquidation preference of $1.20, $2.40 and $8.00 per share,
     respectively, plus any declared and unpaid dividends.
 
  .  The convertible preferred stock generally voted equally with shares of
     common stock on an "as if converted" basis.
 
  No dividends have been declared or paid on the convertible preferred stock
or common stock since inception of the Company. SecureIT paid a Subchapter S
distribution of $199,000 to its stockholders for minimum tax obligations
during the nine months ended September 30, 1998.
 
  Notes Receivable From Stockholders
 
  In November 1996, the Company loaned several officers an aggregate of
$543,000, due December 31, 2005, bearing interest at a rate per annum of
6.95%, payable quarterly. In August 1997, the Company loaned an officer an
aggregate of $116,000, due December 31, 2006, bearing interest at a rate per
annum of 6.87%, payable quarterly. The loans are full recourse, are
collateralized by pledges of shares of common stock of the Company that were
purchased and may be prepaid in part or in full without notice or penalty.
 
(8) Stock Compensation Plans
 
  Stock Option Plans
 
  As of December 31, 1997, a total of 7,278,809 shares of common stock were
reserved for issuance under the Company's equity incentive plans (the
"Plans"), including 4,145,000 shares authorized under the 1995 Stock Option
Plan, 800,000 shares authorized under the 1997 Stock Option Plan, an
additional 2,000,000 shares authorized under the 1998 Equity Incentive Plan,
125,000 shares authorized under the 1998 Directors Plan and 208,809 shares
authorized under SecureIT's 1997 Stock Option Plan.
 
                                     F-15
<PAGE>
 
                        VERISIGN, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)
 
            December 31, 1995, 1996 and 1997 and September 30, 1998
      (Information as of September 30, 1998 and for the nine months ended
                  September 30, 1997 and 1998 is unaudited.)
 
 
  Concurrent with the Company's IPO, the 1995 Stock Option Plan and the 1997
Stock Option Plan (the "1995 and 1997 Plans") were terminated. Options to
purchase common stock granted under the 1995 and 1997 Plans remain outstanding
and subject to the vesting and exercise terms of the original grant. All
shares that remained available for future issuance under the 1995 and 1997
Plans at the time of their termination were transferred to the 1998 Equity
Incentive Plan. No further options can be granted under the 1995 and 1997
Plans. Options granted under the 1995 and 1997 Plans are subject to terms
substantially similar to those described below with respect to options granted
under the 1998 Equity Incentive Plan.
 
  In October 1997 the Board of Directors (the "Board") adopted, and in January
1998 the stockholders approved, the 1998 Equity Incentive Plan (the "1998
Plan"). The 1998 Plan authorizes the award of options, restricted stock awards
and stock bonuses.
 
  Options may be granted at an exercise price not less than 100% of the fair
market value of the Company's common stock on the date of grant for incentive
stock options and 85% of such fair market value for nonqualified stock
options. All options are granted at the discretion of the Company's Board and
have a term not greater than 7 years from the date of grant. Options issued
generally vest 25% on the first anniversary date and ratably over the
following 12 quarters.
 
  In October 1997 the Board adopted, and in January 1998 the stockholders
approved the 1998 Directors Stock Options Plan (the "Directors Plan"). Members
of the Board who are not employees of the Company, or any parent, subsidiary
of affiliate of the Company, are eligible to participate in the Directors
Plan. The option grants under the Directors Plan are automatic and
nondiscretionary, and the exercise price of the options is 100% of the fair
market value of the common stock on the date of the grant. Each eligible
director who becomes a director on or after January 28, 1998 will initially be
granted an option to purchase 15,000 shares on the date such director first
becomes a director (the "Initial Grant"). On each anniversary of a director's
Initial Grant or most recent grant if such director was ineligible to receive
an Initial Grant, each eligible director will automatically be granted an
additional option to purchase 7,500 shares of common stock if the director has
served continuously as a director since the date of his Initial Grant or most
recent grant. The term of the options under the Directors Plan is ten years
and options vest as to 6.25% of the shares each quarter after the date of the
grant, provided the optionee remains a director of the Company.
 
  In connection with the acquisition of SecureIT, the Company assumed
SecureIT's 1997 Stock Option Plan (the "SecureIT Plan"). The SecureIT Plan
provided for the grant of both fixed and performance-based stock options.
Options granted under the SecureIT Plan generally have a term of 7 years and
vest over a four-year period, 25% on each anniversary of the grant date. No
further options can be granted under the SecureIT Plan.
 
                                     F-16
<PAGE>
 
                        VERISIGN, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)
 
            December 31, 1995, 1996 and 1997 and September 30, 1998
      (Information as of September 30, 1998 and for the nine months ended
                  September 30, 1997 and 1998 is unaudited.)
 
 
  A summary of stock option activity under the Plans follows:
 
<TABLE>
<CAPTION>
                               Period from April
                                    12, 1995              Year Ended December 31,
                                 (Inception) to    ----------------------------------------
                               December 31, 1995          1996                 1997
                               ------------------- -------------------- -------------------
                                          Weighted             Weighted            Weighted
                                          Average              Average             Average
                                          Exercise             Exercise            Exercise
                                Shares     Price     Shares     Price    Shares     Price
                               ---------  -------- ----------  -------- ---------  --------
     <S>                       <C>        <C>      <C>         <C>      <C>        <C>
     Outstanding at beginning
      of period..............         --    $ --    1,274,750    $.12   1,608,075   $ .80
     Granted.................  1,398,750     .12    2,022,700     .83   1,601,652    4.23
     Exercised...............         --      --   (1,637,375)    .34    (532,781)    .46
     Canceled................   (124,000)    .12      (52,000)    .13     (84,157)    .93
                               ---------           ----------           ---------
     Outstanding at end of
      period.................  1,274,750     .12    1,608,075     .80   2,592,789    3.00
                               =========           ==========           =========
     Exercisable at end of
      period.................     86,457     .12      152,167     .12     258,088     .80
                               =========           ==========           =========
     Weighted average fair
      value of options
      granted during the
      period.................                .03                  .17                1.03
                                            ====                 ====               =====
</TABLE>
 
  The following table summarizes information about stock options outstanding
as of December 31, 1997:
 
<TABLE>
<CAPTION>
                                     Weighted-
                                      Average   Weighted-             Weighted-
                                     Remaining   Average               Average
                          Shares    Contractual Exercise    Shares    Exercise
                        Outstanding    Life       Price   Exercisable   Price
                        ----------- ----------- --------- ----------- ---------
     <S>                <C>         <C>         <C>       <C>         <C>
     $ .01--$ .25......    389,500   5.2 years    $ .14     116,159     $ .13
     $ .61--$ .75 .....    612,258   5.7 years      .75     118,304       .75
     $1.50--$2.75......    678,925   6.3 years     2.13      14,250      1.50
     $4.00--$6.00......    530,800   6.8 years     5.62         --        --
     $6.06--$8.00......    381,306   6.7 years     7.34       9,375      8.00
                         ---------                          -------
     $ .01--$8.00......  2,592,789   6.1 years     3.00     258,088       .80
                         =========                          =======
</TABLE>
 
  1998 Employee Stock Purchase Plan
 
  In December 1997, the Board adopted, and in January 1998, the stockholders
approved, the 1998 Employee Stock Purchase Plan ("Purchase Plan"), for which
500,000 shares of the Company's common stock have been reserved. Eligible
employees may purchase the Company's common stock through payroll deductions
by electing to have between 2% and 10% of their compensation withheld. Each
participant is granted an option to purchase the Company's common stock on the
first day of each 24 month offering period and such option is automatically
exercised on the last day of each six month purchase period during the
offering period. The purchase price for the Company's common stock under the
Purchase Plan is 85% of the lesser of the fair market value of the Company's
common stock on the first day of the applicable offering period and the last
day of the applicable purchase period. The first offering period began on
January 30, 1998. Offering periods thereafter will begin on February 1 and
August 1 of each year.
 
                                     F-17
<PAGE>
 
                        VERISIGN, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)
 
            December 31, 1995, 1996 and 1997 and September 30, 1998
      (Information as of September 30, 1998 and for the nine months ended
                  September 30, 1997 and 1998 is unaudited.)
 
 
  Pro Forma Information
 
  The Company applies the intrinsic value method in accounting for its equity-
based compensation plan. Had compensation cost for the Company's equity-based
compensation plans been determined consistent with the fair value approach set
forth in SFAS No. 123, Accounting for Stock-Based Compensation, the Company's
net loss would have been as follows:
 
<TABLE>
<CAPTION>
                                       Period from
                                     April 12, 1995   Year Ended December 31,
                                     (inception) to   ------------------------
                                    December 31, 1995    1996         1997
                                    ----------------- -----------  -----------
                                      (In thousands, except per share data)
   <S>                              <C>               <C>          <C>
   Net loss as reported............      $(1,994)     $   (10,288) $   (18,589)
   Pro forma net loss under SFAS
    No. 123........................       (1,999)         (10,332)     (18,904)
   Basic and diluted net loss per
    share as reported..............         (.43)           (2.07)       (2.61)
   Pro forma basic and diluted net
    loss per share under
    SFAS No. 123...................         (.43)           (2.08)       (2.65)
</TABLE>
 
  The fair value of options granted during the period from April 12, 1995
(inception) to December 31, 1995 and the years ended December 31, 1996 and
1997 was estimated on the date of grant using the minimum value method using
the following weighted-average assumptions for options granted under all plans
except the SecureIT Plan: no dividend yield; risk-free interest rates of
6.11%, 6.21% and 6.14%, respectively; and an expected life of 5 years. Options
granted under the SecureIT Plan during the year ended December 31, 1997 were
valued using the minimum value method and weighted-average assumptions of no
dividend yield, risk-free interest rate of 6.34% and an expected life of 4
years.
 
(9) Income Taxes
 
  The tax effects of temporary differences that give rise to significant
portions of the Company's deferred tax assets are as follows:
 
<TABLE>
<CAPTION>
                                                               December 31,
                                                             -----------------
                                                              1996      1997
                                                             -------  --------
                                                              (In thousands)
   <S>                                                       <C>      <C>
   Deferred tax assets:
     Net operating loss carryforwards and deferred start-up
      costs................................................  $ 4,016  $ 11,579
     Tax credit carryforwards..............................      177       839
     Other.................................................      162       507
                                                             -------  --------
                                                               4,335    12,925
   Valuation allowance.....................................   (4,355)  (12,925)
                                                             -------  --------
       Net deferred tax assets.............................  $   --   $    --
                                                             =======  ========
</TABLE>
 
  As of December 31, 1997, the Company has available net operating loss
carryforwards for federal and California income tax purposes of approximately
$26,900,000 and $27,100,000, respectively. The federal net operating loss
carryforwards will expire, if not utilized, in 2010 through 2014. The
California net operating loss carryforwards will expire, if not utilized, in
2003.
 
  As of December 31, 1997, the Company has available for carryover research
and experimental tax credits for federal and California income tax purposes of
approximately $411,000 and $248,000, respectively. The federal research and
experimental tax credits will expire, if not utilized, in 2010 through 2014.
California
 
                                     F-18
<PAGE>
 
                        VERISIGN, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)
 
            December 31, 1995, 1996 and 1997 and September 30, 1998
      (Information as of September 30, 1998 and for the nine months ended
                  September 30, 1997 and 1998 is unaudited.)
 
research and experimental tax credits carry forward indefinitely until
utilized. The Company also has federal foreign tax credits of approximately
$180,000, which expire, if not utilized, in 2001 and 2002.
 
  The Tax Reform Act of 1986 imposed substantial restrictions on the
utilization of net operating losses and tax credits in the event of an
"ownership change" of a corporation. Accordingly, the Company's ability to
utilize net operating loss and credit carryforwards may be limited as a result
of such an "ownership change" as defined in the Internal Revenue Code.
 
(10) Commitments
 
  Leases
 
  The Company leases its facilities under operating leases that extend through
2002. Future minimum lease payments under the Company's noncancelable
operating leases as of December 31, 1997, are as follows:
 
<TABLE>
<CAPTION>
                                                                  (In thousands)
      <S>                                                         <C>
      1998.......................................................     $1,645
      1999.......................................................      1,667
      2000.......................................................      1,679
      2001.......................................................      1,293
      2002.......................................................          9
                                                                      ------
      Total minimum lease payments...............................     $6,293
                                                                      ======
</TABLE>
 
  In April 1998, the Company entered into a five-year operating lease for
facilities for its SecureIT subsidiary in Norcross, Georgia. The annual
minimum commitment for this lease is $156,000. In September 1998, the Company
entered into a 6 1/2-year operating lease agreement for additional space
contiguous to its headquarters facility. The annual minimum commitment related
to this lease, which begins in January 1999, is $1.8 million.
 
  Net rental expense under operating leases for the period from April 12, 1995
(inception) to December 31, 1995 and the years ended December 31, 1996 and
1997 and the nine months ended September 30, 1998, was $141,000, $621,000 and
$1,722,000, respectively.
 
(11) Special Charges
 
  Merger-related expenses
 
  In connection with the acquisition of SecureIT in July 1998 (see Note 2),
the Company recorded a special charge of $3.6 million for direct and other
merger-related costs pertaining to the merger transaction and certain stock-
based compensation charges. Merger transaction costs totaled $2.4 million and
consisted primarily of fees for investment bankers, attorneys and accountants,
filing fees and other related charges. The stock-based compensation charges of
$1.2 million related to certain performance stock options held by SecureIT
employees whose vesting either automatically accelerated upon change of
control or were accelerated by VeriSign's Board of Directors subsequent to the
merger.
 
  VeriFone
 
  In September 1996, VeriFone, Inc., which subsequently became a wholly-owned
subsidiary of Hewlett-Packard Company, filed a lawsuit against the Company
alleging, among other things, trademark infringement. In
 
                                     F-19
<PAGE>
 
                        VERISIGN, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(Continued)
 
            December 31, 1995, 1996 and 1997 and September 30, 1998
      (Information as of September 30, 1998 and for the nine months ended
                  September 30, 1997 and 1998 is unaudited.)
 
November 1997, both parties executed a definitive agreement under which, among
other things, the Company issued an aggregate of 250,000 shares of common
stock, which were transferred to Hewlett-Packard, and the Company and VeriFone
settled such claims. The settlement amount was recorded during the year ended
December 31, 1997 as a $2.0 million charge to operations.
 
  Microsoft
 
  In November 1997, the Company entered into a preferred provider agreement
with Microsoft Corporation ("Microsoft") whereby the companies will develop,
promote and distribute a variety of client-based and server-based digital
certificate solutions and the Company will be designated as the premier
provider of digital certificates for Microsoft customers. In connection with
the agreement, the Company issued 100,000 shares of common stock to Microsoft
resulting in an $800,000 charge to operations.
 
(12) Geographic Information
 
  Financial information by geographic area for the years ended December 31 was
as follows:
 
<TABLE>
<CAPTION>
                                                United
     1996                                       States    Japan   Consolidated
     ----                                      --------  -------  ------------
                                                      (In thousands)
   <S>                                         <C>       <C>      <C>
   Revenues................................... $  1,301  $    55    $  1,356
   Operating loss.............................   (9,326)  (1,733)    (11,059)
   Total assets, excluding cash and cash
    equivalents...............................    5,933      598       6,531
     1997
     ----
   Revenues...................................   12,983      373      13,356
   Operating loss.............................  (18,166)  (3,135)    (21,301)
   Total assets, excluding cash and cash
    equivalents...............................   18,202    3,760      21,962
</TABLE>
 
  Intergeographic transactions have not been significant to date. Other
revenues derived from international customers aggregated $861,000 for the year
ended December 31, 1997.
 
 
                                     F-20
<PAGE>
 
 
 
                               [LOGO OF VERISIGN]
 
 
<PAGE>
 
                                    PART II
 
                    INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 13. Other Expenses of Issuance and Distribution.
 
  The expenses to be paid by the Registrant in connection with this offering
are as follows. All amounts other than the SEC registration fee, NASD filing
fee and Nasdaq National Market application fee are estimates.
 
<TABLE>
   <S>                                                              <C>
   SEC Registration Fee............................................ $ 48,681.93
   NASD Filing Fee.................................................   18,675.75
   Nasdaq National Market Application Fee..........................   17,500.00
   Printing........................................................  100,000.00
   Legal Fees and Expenses.........................................  150,000.00
   Accounting Fees and Expenses....................................  150,000.00
   Blue Sky Fees and Expenses......................................   10,000.00
   Transfer Agent and Registrar Fees...............................   20,000.00
   Miscellaneous...................................................   35,142.32
                                                                    -----------
     Total......................................................... $550,000.00
                                                                    ===========
</TABLE>
 
ITEM 14. Indemnification of Directors and Officers.
 
  Section 145 of the Delaware General Corporation Law authorizes a court to
award, or a corporation's Board of Directors to grant, indemnity to directors
and officers in terms sufficiently broad to permit such indemnification under
certain circumstances for liabilities (including reimbursement for expenses
incurred) arising under the Securities Act of 1933, as amended (the
"Securities Act").
 
  As permitted by the Delaware General Corporation Law, the Registrant's Third
Amended and Restated Certificate of Incorporation includes a provision that
eliminates the personal liability of its directors for monetary damages for
breach of fiduciary duty as a director, except for liability (i) for any
breach of the director's duty of loyalty to the Registrant or its
stockholders, (ii) for acts or omissions not in good faith or that involve
intentional misconduct or a knowing violation of law, (iii) under section 174
of the Delaware General Corporation Law (regarding unlawful dividends and
stock purchases) or (iv) for any transaction from which the director derived
an improper personal benefit.
 
  As permitted by the Delaware General Corporation Law, the Registrant's
Amended and Restated Bylaws, which will become effective upon the completion
of this offering, provide that (i) the Registrant is required to indemnify its
directors and officers to the fullest extent permitted by the Delaware General
Corporation Law, subject to certain very limited exceptions, (ii) the
Registrant may indemnify its other employees and agents to the extent that it
indemnifies its officers and directors, unless otherwise required by law, its
Certificate of Incorporation, its Amended and Restated Bylaws, or agreement,
(iii) the Registrant is required to advance expenses, as incurred, to its
directors and executive officers in connection with a legal proceeding to the
fullest extent permitted by the Delaware General Corporation Law, subject to
certain very limited exceptions and (iv) the rights conferred in the Amended
and Restated Bylaws are not exclusive.
 
  The Registrant has entered into Indemnification Agreements with each of its
current directors and certain of its executive officers and intends to enter
into such Indemnification Agreements with each of its other executive officers
to give such directors and executive officers additional contractual
assurances regarding the scope of the indemnification set forth in the
Registrant's Certificate of Incorporation and to provide additional procedural
protections. At present, there is no pending litigation or proceeding
involving a director, officer or employee of the Registrant regarding which
indemnification is sought, nor is the Registrant aware of any threatened
litigation that may result in claims for indemnification.
 
                                     II-1
<PAGE>
 
  Reference is also made to Article VIII of the Underwriting Agreement, which
provides for the indemnification of officers, directors and controlling
persons of the Registrant against certain liabilities. The indemnification
provisions in the Registrant's Certificate of Incorporation, Amended and
Restated Bylaws and the Indemnification Agreements entered into between the
Registrant and each of its directors and executive officers may be
sufficiently broad to permit indemnification of the Registrant's directors and
executive officers for liabilities arising under the Securities Act.
 
  The Registrant has obtained directors' and officers' liability insurance
with a per claim and annual aggregate coverage limit of $5 million.
 
  Reference is made to the following documents filed as exhibits to this
Registration Statement regarding relevant indemnification provisions described
above and elsewhere herein:
 
<TABLE>
<CAPTION>
                                                                       Exhibit
   Document                                                            Number
   --------                                                            -------
   <S>                                                                 <C>
   Underwriting Agreement (draft dated January 4, 1999)...............   1.01
   Third Amended and Restated Certificate of Incorporation of
    Registrant........................................................   3.01
   Amended and Restated Bylaws of Registrant..........................   3.02
   Form of Indemnification Agreement..................................  10.05
</TABLE>
 
ITEM 15. Recent Sales of Unregistered Securities.
 
  The following table sets forth information regarding all securities sold by
the Registrant since December 31, 1995.
 
<TABLE>
<CAPTION>
                                                                Aggregate
        Name or             Date        Title of       Number   Purchase     Form of
   Class of Purchaser     of Sale      Securities     of Shares   Price   Consideration
   ------------------     -------  ------------------ --------- --------- -------------
<S>                       <C>      <C>                <C>       <C>       <C>
Kleiner Perkins Caufield  2/20/96  Series B Preferred 1,153,207 2,825,357     Cash
 & Byers VII............           Stock (1)
KPCB VII Founders Fund..  2/20/96  Series B Preferred   125,947   308,570     Cash
                                   Stock (1)
KPCB Information          2/20/96  Series B Preferred    32,799    80,358     Cash
 Sciences Zaibatsu Fund            Stock (1)
 II.....................
Bessemer Venture          2/20/96  Series B Preferred   187,819   460,157     Cash
 Partners DCI...........           Stock (1)
Mitsubishi Corporation..  2/20/96  Series B Preferred    72,026   176,464     Cash
                                   Stock (1)
Security Dynamics         2/20/96  Series B Preferred    72,026   176,464     Cash
 Technologies, Inc. ....           Stock (1)
Intel Corporation.......  2/20/96  Series B Preferred   144,052   352,927     Cash
                                   Stock (1)
Ameritech Development     2/20/96  Series B Preferred    72,026   176,464     Cash
 Corporation............           Stock (1)
GC&H Investments........  2/20/96  Series B Preferred     5,589    13,693     Cash
                                   Stock (1)
Visa International        2/20/96  Series B Preferred   144,052   352,927     Cash
 Service Association....           Stock (1)
Fischer Security          2/20/96  Series B Preferred    72,026   176,464     Cash
 Corporation L.L.C. ....           Stock (1)
First TZMM Investment     2/20/96  Series B Preferred    17,554    43,007     Cash
 Partnership............           Stock (1)
Cisco Systems, Inc. ....  11/18/96 Series C Preferred   812,500 6,500,000     Cash
                                   Stock (1)
Microsoft Corporation...  11/18/96 Series C Preferred   812,500 6,500,000     Cash
                                   Stock (1)
</TABLE>
 
                                     II-2
<PAGE>
 
<TABLE>
<CAPTION>
                                                                          Aggregate
        Name or                                Title of       Number       Purchase        Form of
   Class of Purchaser      Date of Sale       Securities     of Shares      Price       Consideration
   ------------------      ------------   ------------------ ---------    ----------    -------------
<S>                       <C>             <C>                <C>          <C>           <C>
Venture Fund I, L.P. ...     11/18/96     Series C Preferred   250,000     2,000,000      Cash
                                          Stock (1)
COMCAST Investment           11/18/96     Series C Preferred   250,000     2,000,000      Cash
 Holdings, Inc. ........                  Stock (1)
First Data Corporation..     11/18/96     Series C Preferred   250,000     2,000,000      Cash
                                          Stock (1)
Intuit Inc. ............     11/18/96     Series C Preferred   250,000     2,000,000      Cash
                                          Stock (1)
Reuters New Media            11/18/96     Series C Preferred   250,000     2,000,000      Cash
 Inc. ..................                  Stock (1)
SOFTBANK Ventures,           11/18/96     Series C Preferred   250,000     2,000,000      Cash
 Inc. ..................                  Stock (1)
Merrill Lynch & Co.,         11/18/96     Series C Preferred   250,000     2,000,000      Cash
 Incorporated...........                  Stock (1)
Amerindo Technology          11/18/96     Series C Preferred    62,500       500,000      Cash
 Growth Fund II.........                  Stock (1)
Attractor L.P. .........     11/18/96     Series C Preferred    62,500       500,000      Cash
                                          Stock (1)
Chancellor LGT Asset         11/18/96     Series C Preferred    62,500       500,000      Cash
 Management.............                  Stock (1)
Gemplus.................     12/17/96     Series C Preferred    62,500       500,000      Cash
                                          Stock (1)
26 consultants..........  3/28/96-1/29/98 Common Stock          90,405       172,150      Services
63 employee or director   2/27/96-1/29/98 Common Stock       2,069,625(2)    796,543      Cash
 optionees..............                  (option exercises)
Microsoft Corporation...     11/20/97     Common Stock         100,000       800,000      (3)
VeriFone, Inc./Hewlett-
 Packard Company........     11/20/97     Common Stock         250,000     2,000,000      (4)
Stockholders of
 SecureIT, Inc. ........      7/6/98      Common Stock       1,666,186    70,084,966(5)   (6)
</TABLE>
- --------
(1) Each share of preferred stock automatically converted into one share of
    common stock upon the closing of VeriSign's initial public offering.
 
(2) Of these shares, 78,125 were repurchased by cancellation of a promissory
    note in the amount of $9,375, and 442,922 were subject to repurchase at
    December 31, 1998. The repurchase right lapses ratably over four years.
 
(3) The shares of common stock were issued in connection with a preferred
    provider agreement with VeriSign.
 
(4) The shares of common stock were issued in connection with the execution of
    certain agreements, including a settlement of claims, with VeriFone, Inc.,
    which is owned by Hewlett-Packard Company.
 
(5) Based on the closing price of VeriSign's common stock on July 6, 1998 of
    $42.063 per share.
 
(6) All of the issued and outstanding capital stock of SecureIT, Inc.
 
  All sales of common stock to employees made pursuant to the exercise of
stock options granted under VeriSign's stock option plans or pursuant to
restricted stock purchase agreements, and all sales to consultants for
services, were made pursuant to the exemption from the registration
requirements of the Securities Act afforded by Rule 701 promulgated under the
Securities Act.
 
  All other sales were made in reliance on Section 4(2) of the Securities Act
and/or Regulation D promulgated under the Securities Act. These sales were
made without general solicitation or advertising. Each purchaser was a
sophisticated investor with access to all relevant information necessary to
evaluate the investment who represented to the Registrant that the shares were
being acquired for investment.
 
 
                                     II-3
<PAGE>
 
ITEM 16. Exhibits and Financial Statement Schedules.
 
  (a) The following exhibits are filed herewith:
 
<TABLE>   
<CAPTION>
 Exhibit
 Number                               Exhibit Title
 -------                              -------------
 <C>     <S>
  1.01   Underwriting Agreement (draft dated January 4, 1999).
  2.01   Agreement and Plan of Reorganization dated as of July 6, 1998 by and
         between Registrant, VeriSign Merger Corp., SecurelT and the
         shareholders of SecureIT.(1)
  3.01   Third Amended and Restated Certificate of Incorporation of the
         Registrant.(2)
  3.02   Amended and Restated Bylaws of Registrant.(2)
  4.01   Investors' Rights Agreement, dated November 15, 1996, among the
         Registrant and the parties indicated therein.(2)
  4.02   First Amendment to Amended and Restated Investors' Rights Agreement
         dated as of July 7, 1998 by and between Registrant and certain
         stockholders of Registrant.(1)
  4.03   Registration Rights Agreement dated as of July 6, 1998 by and between
         Registrant and the former shareholders of SecureIT.(3)
  4.04   Form of Specimen Common Stock Certificate.(2)
  5.01   Opinion of Fenwick & West LLP regarding legality of the securities
         being registered.*
 10.05   Form of Indemnification Agreement entered into by the Registrant with
         each of its directors and executive officers.(2)
 10.06   Registrant's 1995 Stock Option Plan and related documents.(2)
 10.07   Registrant's 1997 Stock Option Plan.(2)
 10.08   Registrant's 1998 Directors' Stock Option Plan and related
         documents.(2)
 10.09   Registrant's 1998 Equity Incentive Plan and related documents.(2)
 10.10   Registrant's 1998 Employee Stock Purchase Plan and related
         documents.(2)
 10.11   Registrant's Executive Loan Program of 1996.(2)
 10.14   Form of Full Recourse Secured Promissory Note and Form of Pledge and
         Security Agreement entered into between the Registrant and certain
         executive officers.(2)
 10.15   Assignment Agreement, dated April 18, 1995, between the Registrant and
         RSA Data Security, Inc.(2)
 10.16   BSAFE/TIPEM OEM Master License Agreement, dated April 18, 1995,
         between the Registrant and RSA Data Security, Inc., as amended.(2)
 10.17   Non-Compete and Non-Solicitation Agreement, dated April 18, 1995,
         between the Registrant and RSA Data Security, Inc.(2)
 10.18   Microsoft/VeriSign Certificate Technology Preferred Provider
         Agreement, effective as of May 1, 1997, between the Registrant and
         Microsoft Corporation.(2)**
 10.19   Master Development and License Agreement, dated September 30, 1997,
         between the Registrant and Security Dynamics Technologies, Inc.(2)**
 10.20   License Agreement, dated December 16, 1996, between the Registrant and
         VeriSign Japan K.K.(2)
 10.21   Loan Agreement, dated January 30, 1997, between the Registrant and
         Venture Lending & Leasing, Inc.(2)
 10.22   Security Agreement, dated January 30, 1997, between the Registrant and
         Venture Lending & Leasing, Inc.(2)
 10.23   VeriSign Private Label Agreement, dated April 2, 1996, between the
         Registrant and VISA International Service Association.(2)**
 10.24   VeriSign Private Label Agreement, dated October 3, 1996, between the
         Registrant and VISA International Service Association.(2)**
 10.25   Lease Agreement, dated August 15, 1996, between the Registrant and
         Shoreline Investments VII.(2)
 10.26   Lease Agreement, dated September 18, 1996, between the Registrant and
         Shoreline Investments VII.(2)
 10.27   Sublease Agreement, dated September 5, 1996, between the Registrant
         and Security Dynamics Technologies, Inc.(2)
</TABLE>    
 
 
                                      II-4
<PAGE>
 
<TABLE>   
<CAPTION>
 Exhibit
 Number                               Exhibit Title
 -------                              -------------
 <C>     <S>
 10.28   Employment Offer Letter Agreement, between the Registrant and Stratton
         Sclavos, dated June 12, 1995, as amended October 4, 1995.(2)
 10.29   Employment and Non-Competition Agreement between SecureIT and Jagtar
         Chaudhry.+
 10.30   Amendment Number One to Master Development and License Agreement dated
         as of December 31, 1998 between the Registrant and Security Dynamics
         Technologies, Inc.
 10.31   Amendment Number Two to BSAFE/TIPEM OEM Master License Agreement dated
         as of December 31, 1998 between the Registrant and RSA Data Security,
         Inc.
 10.32   Sublease dated as of September 25, 1998 between the Registrant and
         Silicon Graphics, Inc.
 21.01   Subsidiaries of the Registrant.+
 23.01   Consent of Fenwick & West LLP (included in Exhibit 5.01).*
 23.02   Consent of KPMG LLP.
 24.01   Power of Attorney.+
 27.01   Financial Data Schedule (available in EDGAR format only).+
</TABLE>    
- --------
   
+  Previously filed.     
(1) Previously filed as an exhibit to the Registrant's Current Report on Form
    8-K filed on July 21, 1998 and incorporated herein by reference.
 
(2) Previously filed with the Commission as an exhibit to the Registrant's
    Registration Statement on Form S-1 (File Number 333-49789) and
    incorporated herein by reference.
 
(3) Previously filed with the Commission as an exhibit to the Registrant's
    Registration Statement on Form S-8 (File No. 333-58583).
 
*  to be filed by amendment
 
**  Confidential treatment was received with respect to certain portions of
    this agreement. Such portions were omitted and filed separately with the
    Securities and Exchange Commission.
 
  (b) Financial statement schedules are omitted because the information called
for is not required or is shown either in the financial statements or the
notes thereto.
 
ITEM 17. Undertakings.
 
  Insofar as indemnification for liabilities arising under the Securities Act
may be permitted to directors, officers and controlling persons of the
Registrant pursuant to the provisions described under Item 14 above, or
otherwise, the Registrant has been advised that in the opinion of the
Securities and Exchange Commission such indemnification is against public
policy as expressed in the Securities Act and is, therefore, unenforceable. In
the event that a claim for indemnification against such liabilities (other
than the payment by the Registrant of expenses incurred or paid by a director,
officer or controlling person of the Registrant in the successful defense of
any action, suit or proceeding) is asserted by such director, officer or
controlling person in connection with the securities being registered, the
Registrant will, unless in the opinion of its counsel the matter has been
settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Securities Act and will be governed by the final
adjudication of such issue.
 
  The undersigned Registrant hereby undertakes that:
 
  (1) For purposes of determining any liability under the Securities Act, the
information omitted from the form of prospectus filed as part of this
Registration Statement in reliance upon Rule 430A and contained in a form of
prospectus filed by the Registrant pursuant to Rule 424(b)(1) or (4) or 497(h)
under the Securities Act shall be deemed to be part of this Registration
Statement as of the time it was declared effective.
 
  (2) For the purpose of determining any liability under the Securities Act,
each post-effective amendment that contains a form of prospectus shall be
deemed to be a new registration statement relating to the securities offered
therein, and the offering of such securities at that time shall be deemed to
be the initial bona fide offering thereof.
 
                                     II-5
<PAGE>
 
                                   SIGNATURES
   
  Pursuant to the requirements of the Securities Act, the Registrant has duly
caused this Amendment to the Registration Statement to be signed on its behalf
by the undersigned, thereunto duly authorized, in the City of Mountain View,
State of California, on the 14th day of January, 1999.     
 
                                          VERISIGN, INC.
 
                                          By:     /s/ Stratton D. Sclavos
                                            -----------------------------------
                                                    Stratton D. Sclavos
                                               President and Chief Executive
                                                          Officer
                                                       
  In accordance with the requirements of the Securities Act, this Amendment has
been signed by the following persons in the capacities and on the date
indicated.     
 
<TABLE>   
<CAPTION>
             Signature                           Title                    Date
             ---------                           -----                    ----
 
 
Principal Executive Officer:
 
<S>                                  <C>                           <C>
      /s/ Stratton D. Sclavos        President, Chief Executive     January 14, 1999
____________________________________  Officer and Director
         Stratton D. Sclavos
 
 
Principal Financial and Principal Accounting Officer:
 
          /s/ Dana L. Evan           Vice President of Finance      January 14, 1999
____________________________________  and Administration and
             Dana L. Evan             Chief Financial Officer
 
Directors:
 
        /s/ D. James Bidzos*         Chairman of the Board          January 14, 1999
____________________________________
           D. James Bidzos
 
       /s/ William Chenevich*        Director                       January 14, 1999
____________________________________
          William Chenevich
       /s/ Kevin R. Compton*         Director                       January 14, 1999
____________________________________
          Kevin R. Compton
 
        /s/ David J. Cowan*          Director                       January 14, 1999
____________________________________
           David J. Cowan
 
       /s/ Timothy Tomlinson*        Director and Secretary         January 14, 1999
____________________________________
          Timothy Tomlinson
 
          /s/ Dana L. Evan
*By: _______________________________
            Dana L. Evan
          Attorney-in-Fact
</TABLE>    

                                      II-6
<PAGE>
 
                                 EXHIBIT INDEX
 
<TABLE>   
<CAPTION>
 Exhibit
 Number                               Exhibit Title
 -------                              -------------
 <C>     <S>
  1.01   Underwriting Agreement (draft dated January 4, 1999).
  2.01   Agreement and Plan of Reorganization dated as of July 6, 1998 by and
         between Registrant, VeriSign Merger Corp., SecurelT and the
         shareholders of SecureIT.(1)
  3.01   Third Amended and Restated Certificate of Incorporation of the
         Registrant.(2)
  3.02   Amended and Restated Bylaws of Registrant.(2)
  4.01   Investors' Rights Agreement, dated November 15, 1996, among the
         Registrant and the parties indicated therein.(2)
  4.02   First Amendment to Amended and Restated Investors' Rights Agreement
         dated as of July 7, 1998 by and between Registrant and certain
         stockholders of Registrant.(1)
  4.03   Registration Rights Agreement dated as of July 6, 1998 by and between
         Registrant and the former shareholders of SecureIT.(3)
  4.04   Form of Specimen Common Stock Certificate.(2)
  5.01   Opinion of Fenwick & West LLP regarding legality of the securities
         being registered.*
 10.05   Form of Indemnification Agreement entered into by the Registrant with
         each of its directors and executive officers.(2)
 10.06   Registrant's 1995 Stock Option Plan and related documents.(2)
 10.07   Registrant's 1997 Stock Option Plan.(2)
 10.08   Registrant's 1998 Directors' Stock Option Plan and related
         documents.(2)
 10.09   Registrant's 1998 Equity Incentive Plan and related documents.(2)
 10.10   Registrant's 1998 Employee Stock Purchase Plan and related
         documents.(2)
 10.11   Registrant's Executive Loan Program of 1996.(2)
 10.14   Form of Full Recourse Secured Promissory Note and Form of Pledge and
         Security Agreement entered into between the Registrant and certain
         executive officers.(2)
 10.15   Assignment Agreement, dated April 18, 1995, between the Registrant and
         RSA Data Security, Inc.(2)
 10.16   BSAFE/TIPEM OEM Master License Agreement, dated April 18, 1995,
         between the Registrant and RSA Data Security, Inc., as amended.(2)
 10.17   Non-Compete and Non-Solicitation Agreement, dated April 18, 1995,
         between the Registrant and RSA Data Security, Inc.(2)
 10.18   Microsoft/VeriSign Certificate Technology Preferred Provider
         Agreement, effective as of May 1, 1997, between the Registrant and
         Microsoft Corporation.(2)**
 10.19   Master Development and License Agreement, dated September 30, 1997,
         between the Registrant and Security Dynamics Technologies, Inc.(2)**
 10.20   License Agreement, dated December 16, 1996, between the Registrant and
         VeriSign Japan K.K.(2)
 10.21   Loan Agreement, dated January 30, 1997, between the Registrant and
         Venture Lending & Leasing, Inc.(2)
 10.22   Security Agreement, dated January 30, 1997, between the Registrant and
         Venture Lending & Leasing, Inc.(2)
 10.23   VeriSign Private Label Agreement, dated April 2, 1996, between the
         Registrant and VISA International Service Association.(2)**
 10.24   VeriSign Private Label Agreement, dated October 3, 1996, between the
         Registrant and VISA International Service Association.(2)**
 10.25   Lease Agreement, dated August 15, 1996, between the Registrant and
         Shoreline Investments VII.(2)
 10.26   Lease Agreement, dated September 18, 1996, between the Registrant and
         Shoreline Investments VII.(2)
 10.27   Sublease Agreement, dated September 5, 1996, between the Registrant
         and Security Dynamics Technologies, Inc.(2)
</TABLE>    
 
<PAGE>
 
<TABLE>   
<CAPTION>
 Exhibit
 Number                               Exhibit Title
 -------                              -------------
 <C>     <S>
 10.28   Employment Offer Letter Agreement, between the Registrant and Stratton
         Sclavos, dated June 12, 1995, as amended October 4, 1995.(2)
 10.29   Employment and Non-Competition Agreement between SecureIT and Jagtar
         Chaudhry.+
 10.30   Amendment Number One to Master Development and License Agreement dated
         as of December 31, 1998 between the Registrant and Security Dynamics
         Technologies, Inc.
 10.31   Amendment Number Two to BSAFE/TIPEM OEM Master License Agreement dated
         as of December 31, 1998 between the Registrant and RSA Data Security,
         Inc.
 10.32   Sublease dated as of September 25, 1998 between the Registrant and
         Silicon Graphics, Inc.
 21.01   Subsidiaries of the Registrant.+
 23.01   Consent of Fenwick & West LLP (included in Exhibit 5.01).*
 23.02   Consent of KPMG LLP.
 24.01   Power of Attorney.+
 27.01   Financial Data Schedule (available in EDGAR format only).+
</TABLE>    
- --------
   
+  Previously filed.     
(1) Previously filed as an exhibit to the Registrant's Current Report on Form
    8-K filed on July 21, 1998 and incorporated herein by reference.
 
(2) Previously filed with the Commission as an exhibit to the Registrant's
    Registration Statement on Form S-1 (File Number 333-49789) and
    incorporated herein by reference.
 
(3) Previously filed with the Commission as an exhibit to the Registrant's
    Registration Statement on Form S-8 (File No. 333-58583).
 
*  to be filed by amendment
 
**  Confidential treatment was received with respect to certain portions of
    this agreement. Such portions were omitted and filed separately with the
    Securities and Exchange Commission.
 
  (b) Financial statement schedules are omitted because the information called
for is not required or is shown either in the financial statements or the
notes thereto.

<PAGE>
 
                                                                    Exhibit 1.01

 
                                    January __, 1999



Morgan Stanley & Co. Incorporated
Hambrecht & Quist LLC
Dain Rauscher Wessels
     a division of Dain Rauscher Incorporated
BancBoston Robertson Stephens
c/o Morgan Stanley & Co., Incorporated
1585 Broadway
New York, New York  10036

Dear Sirs and Mesdames:

          VeriSign, Inc., a Delaware corporation (the "Company"), proposes to
issue and sell to the several Underwriters named in Schedule II hereto (the
"Underwriters"), and certain Stockholders of the Company named in Schedule I
hereto (the "Selling Stockholders") severally propose to sell to the several
Underwriters, an aggregate of  2,400,000 shares of the Company's common stock,
$0.001 par value (the "Firm Shares"), of which _________ shares are to be issued
and sold by the Company and _________ shares are to be sold by the Selling
Stockholders, each Selling Stockholder selling the amount set forth opposite
such Selling Stockholder's name in Schedule I hereto.

          The Company also proposes to issue and sell to the several
Underwriters not more than an additional 360,000 shares of its common stock,
$0.001 par value (the "Additional Shares"), if and to the extent that you, as
Managers of the offering, shall have determined to exercise, on behalf of the
Underwriters, the right to purchase such shares of common stock granted to the
Underwriters in Section 3 hereof.  The Firm Shares and the Additional Shares are
hereinafter collectively referred to as the "Shares." The shares of common
stock, $0.001 par value, of the Company to be outstanding after giving effect to
the sales contemplated hereby are hereinafter referred to as the "Common Stock."
The Company and the Selling Stockholders are hereinafter sometimes collectively
referred to as the "Sellers."

          The Company has filed with the Securities and Exchange Commission (the
"Commission") a registration statement, including a prospectus, relating to the
Shares.  The registration statement as amended at the time it becomes effective,
including the information (if any) deemed to be part of the registration
statement at the time of effectiveness pursuant to Rule 430A under the
Securities Act of 1933, as amended (the "Securities Act"), is hereinafter
referred to as the "Registration Statement"; the 
<PAGE>
 
prospectus in the form first used to confirm sales of Shares is hereinafter
referred to as the "Prospectus." If the Company has filed an abbreviated
registration statement to register additional shares of Common Stock pursuant to
Rule 462(b) under the Securities Act (the "Rule 462 Registration Statement"),
then any reference herein to the term "Registration Statement" shall be deemed
to include such Rule 462 Registration Statement.

          1.   Representations and Warranties.  The Company represents and
warrants to and agrees with each of the Underwriters that:
 
          (a) The Registration Statement has become effective; no stop order
     suspending the effectiveness of the Registration Statement is in effect,
     and no proceedings for such purpose are pending before or threatened by the
     Commission.

          (b)  (i)  The Registration Statement, when it became effective, did
     not contain and, as amended or supplemented, if applicable, will not
     contain any untrue statement of a material fact or omit to state a material
     fact required to be stated therein or necessary to make the statements
     therein not misleading, (ii) the Registration Statement and the Prospectus
     comply and, as amended or supplemented, if applicable, will comply in all
     material respects with the Securities Act and the applicable rules and
     regulations of the Commission thereunder and (iii) the Prospectus does not
     contain and, as amended or supplemented, if applicable, will not contain
     any untrue statement of a material fact or omit to state a material fact
     necessary to make the statements therein, in the light of the circumstances
     under which they were made, not misleading, except that the representations
     and warranties set forth in this paragraph do not apply to statements or
     omissions in the Registration Statement or the Prospectus based upon
     information relating to any Underwriter furnished to the Company in writing
     by such Underwriter through you expressly for use therein.

          (c) The Company has been duly incorporated, is validly existing as a
     corporation in good standing under the laws of the jurisdiction of its
     incorporation, has the corporate power and corporate authority to own its
     property and to conduct its business as described in the Prospectus and is
     duly qualified to transact business and is in good standing in each
     jurisdiction in which the conduct of its business or its ownership or
     leasing of property requires such qualification, except to the extent that
     the failure to be so qualified or be in good standing would not have a
     material adverse effect on the Company and its subsidiary, taken as a
     whole.

          (d) The Company has only three subsidiaries, VeriSign Japan K.K., a
     corporation incorporated under the laws of Japan ("VeriSign Japan"),
     VeriSign AB, a [corporation] organized under the laws of Sweden ("VeriSign
     AB") and 

                                      -2-
<PAGE>
 
     SecureIT, Inc., a Georgia corporation ("SecureIT") (collectively the
     "Subsidiaries"). Each of the Subsidiaries has been duly incorporated is
     validly existing as a corporation in good standing under the laws of the
     jurisdiction of its incorporation, has the corporate power and authority to
     own its property and to conduct its business as described in the Prospectus
     and is duly qualified to transact business and is in good standing in each
     jurisdiction in which the conduct of its business or its ownership or
     leasing of property requires such qualification, except to the extent that
     the failure to be so qualified or be in good standing would not have a
     material adverse effect on the Company and the Subsidiaries, taken as a
     whole. VeriSign Japan has 2,560 shares of capital stock issued and
     outstanding, of which the Company owns 1,292 shares. VeriSign AB has
     _______ shares of capital stock issued and outstanding, all of which the
     Company owns. SecureIT has ______ shares of capital stock issued and
     outstanding, all of which the Company owns. All of the issued shares of
     capital stock of the Subsidiaries have been duly and validly authorized and
     issued, and are fully paid and non-assessable, and those that are owned
     directly by the Company are owned free and clear of all liens,
     encumbrances, equities or claims. The Company does not own, directly or
     indirectly, an interest in any other corporation, partnership, business,
     trust or other entity required to be set forth in Exhibit 21.01 to the
     Registration Statement.

          (e) The Company and each of the Subsidiaries have good and marketable
     title in fee simple to all real property and good and marketable title to
     all personal property owned by them which is material to the business of
     the Company and the Subsidiaries, taken as a whole, in each case free and
     clear of all liens, encumbrances and defects except such as are described
     in the Prospectus or such as do not materially affect the value of such
     property and do not interfere with the use made and proposed to be made of
     such property by the Company and the Subsidiaries; and any real property
     and buildings held under lease by the Company and the Subsidiaries are held
     by them under valid, subsisting and enforceable leases with such exceptions
     as are not material and do not interfere with the use made and proposed to
     be made of such property and buildings by the Company and the Subsidiaries,
     in each case except as described in the Prospectus.

          (f) The authorized capital stock of the Company conforms as to legal
     matters to the description thereof contained in the Prospectus.

          (g) The shares of Common (including the Shares to be sold by the
     Selling Stockholders) Stock outstanding prior to the issuance of the Shares
     have been duly authorized, and are validly issued, fully paid and non-
     assessable. Except as set forth or contemplated in the Prospectus, neither
     the Company nor the Subsidiaries has outstanding any options to purchase,
     or any preemptive rights or other rights to subscribe for or to purchase,
     any securities or obligations convertible into, or any contracts or
     commitments to issue or sell, shares of its 

                                      -3-
<PAGE>
 
     capital stock or any such options, rights, convertible securities or
     obligations. All outstanding shares of capital stock of the Company and
     options and other rights to acquire capital stock have been issued in
     compliance with the registration and qualification provisions of all
     applicable federal and state securities laws and were not issued in
     violation of any preemptive rights, rights of first refusal or other
     similar rights.

          (h) The Shares have been duly authorized and, when issued and
     delivered in accordance with the terms of this Agreement, will be validly
     issued, fully paid and non-assessable, and the issuance of such Shares will
     not be subject to any preemptive rights, rights of first refusal or similar
     rights.

          (i) This Agreement has been duly authorized, executed and delivered by
     the Company.

          (j) The execution and delivery by the Company of, and the performance
     by the Company of its obligations under, this Agreement will not contravene
     any provision of applicable law or the certificate of incorporation or by-
     laws of the Company or any agreement or other instrument binding upon the
     Company or any of the Subsidiaries that is material to the Company and the
     Subsidiaries, taken as a whole, or any judgment, order or decree of any
     governmental body, agency or court having jurisdiction over the Company or
     any of the Subsidiaries, and no consent, approval, authorization or order
     of, or qualification with, any governmental body or agency is required for
     the performance by the Company of its obligations under this Agreement,
     except such as may be required by the securities or Blue Sky laws of the
     various states in connection with the offer and sale of the Shares or by
     the rules and regulations of the National Association of Securities
     Dealers, Inc. (the "NASD").

          (k) There has not occurred any material adverse change, or any
     development involving a prospective material adverse change, in the
     condition, financial or otherwise, or in the earnings, business or
     operations of the Company and the Subsidiaries, taken as a whole, from that
     set forth in the Prospectus (exclusive of any amendments or supplements
     thereto subsequent to the date of this Agreement).

          (l) Subsequent to the respective dates as of which information is
     given in the Registration Statement and the Prospectus, (i) the Company and
     the Subsidiaries have not incurred any material liability or obligation,
     direct or contingent, nor entered into any material transaction not in the
     ordinary course of business; (ii) the Company has not purchased any of its
     outstanding capital stock, nor declared, paid or otherwise made any
     dividend or distribution of any kind on its capital stock other than
     ordinary and customary dividends; and (iii) there has not been any material
     change in the capital stock, short-term debt or long-term 

                                      -4-
<PAGE>
 
     debt of the Company and the Subsidiaries, except in each case as described
     in the Prospectus.

          (m) There are no legal or governmental proceedings pending or
     threatened to which the Company or any of the Subsidiaries is a party or to
     which any of the properties of the Company or any of the Subsidiaries is
     subject that are required to be described in the Registration Statement or
     the Prospectus and are not so described or any statutes, regulations,
     contracts or other documents that are required to be described in the
     Registration Statement or the Prospectus or to be filed as exhibits to the
     Registration Statement that are not described or filed as required.

          (n) Each of the Company and the Subsidiaries has all necessary
     consents, authorizations, approvals, orders, certificates and permits of
     and from, and has made all declarations and filings with, all federal,
     state, local, foreign and other governmental or regulatory authorities, all
     self-regulatory organizations and all courts and other tribunals, to own,
     lease, license and use its properties and assets and to conduct its
     business in the manner described in the Prospectus, except to the extent
     that the failure to obtain or file would not have a material adverse effect
     on the Company and the Subsidiaries taken as a whole.  Neither the Company
     nor any of the Subsidiaries has received any notice of proceedings related
     to the revocation or modification of any such consent, authorization,
     approval, order, certificate or permit which, singly or in the aggregate,
     if the subject of any unfavorable decision, ruling or finding, would have a
     material adverse effect on the Company and the Subsidiaries taken as a
     whole, except as described in the Prospectus.

          (o) Each preliminary prospectus filed as part of the registration
     statement as originally filed or as part of any amendment thereto, or filed
     pursuant to Rule 424 under the Securities Act, complied when so filed in
     all material respects with the Securities Act and the applicable rules and
     regulations of the Commission thereunder, except for the omission of a
     price range and other information derived therefrom.

          (p) The Company is not and, after giving effect to the offering and
     sale of the Shares and the application of the proceeds thereof as described
     in the Prospectus, will not be an "investment Company" as such term is
     defined in the Investment Company Act of 1940, as amended.

          (q) Except as described in the Prospectus, there are no contracts,
     agreements or understandings between the Company and any person granting
     such person the right to require the Company to file a registration
     statement under the Securities Act with respect to any securities of the
     Company or to require the 

                                      -5-
<PAGE>
 
     Company to include such securities with the Shares registered pursuant to
     the Registration Statement.

          (r) The Company and each of the Subsidiaries are insured by insurers
     of recognized financial responsibility against such losses and risks and in
     such amounts as are prudent and customary in the businesses in which they
     are engaged; neither the Company nor any of the Subsidiaries has been
     refused any insurance coverage sought or applied for; and neither the
     Company nor any of the Subsidiaries has any reason to believe that it will
     not be able to renew its existing insurance coverage as and when such
     coverage expires or to obtain similar coverage from similar insurers as may
     be necessary to continue its business at a cost that would not have a
     material adverse effect on the Company and the Subsidiaries taken as a
     whole, except as described in the Prospectus.

          (s) The Company and the Subsidiaries (i) are in compliance with any
     and all applicable foreign, federal, state and local laws and regulations
     relating to the protection of human health and safety, the environment or
     hazardous or toxic substances or wastes, pollutants or contaminants
     ("Environmental Laws"), (ii) have received all permits, licenses or other
     approvals required of them under applicable Environmental Laws to conduct
     their respective businesses and (iii) are in compliance with all terms and
     conditions of any such permit, license or approval, except where such
     noncompliance with Environmental Laws, failure to receive required permits,
     licenses or other approvals or failure to comply with the terms and
     conditions of such permits, licenses or approvals would not, singly or in
     the aggregate, have a material adverse effect on the Company and the
     Subsidiaries, taken as a whole.

          (t) There are no costs or liabilities associated with Environmental
     Laws (including, without limitation, any capital or operating expenditures
     required for clean-up, closure of properties or compliance with
     Environmental Laws or any permit, license or approval, any related
     constraints on operating activities and any potential liabilities to third
     parties) which would, singly or in the aggregate, have a material adverse
     effect on the Company and the Subsidiaries, taken as a whole.

          (u) Except as disclosed in the Prospectus, (i) the Company and the
     Subsidiaries own or possess, or can acquire on reasonable terms, adequate
     licenses or other rights to use all material patents, copyrights,
     trademarks, service marks, trade names, technology and know-how currently
     employed by them to conduct their respective businesses in the manner
     described in the Prospectus, (ii) neither the Company nor any of the
     Subsidiaries has received any notice of infringement or conflict with (and
     neither the Company nor any of the Subsidiaries knows of any infringement
     or conflict with) asserted rights of others with respect to any patents,
     copyrights, trademarks, service marks, trade names, 

                                      -6-
<PAGE>
 
     trade secrets, technology or know-how (including, without limitation, trade
     secrets and other unpatented and/or unpatentable proprietary or
     confidential information, systems or procedures) which could reasonably be
     expected to result in any material adverse effect upon the Company and the
     Subsidiaries, taken as a whole, and (iii) the discoveries, inventions,
     products or processes of the Company and the Subsidiaries referred to in
     the Prospectus do not, to the knowledge of the Company or any of the
     Subsidiaries, infringe or conflict with any right or patent of any third
     party, or any discovery, invention, product or process which is the subject
     of a published patent application filed by any third party, known to the
     Company or any of the Subsidiaries which could reasonably be expected to
     have a material adverse effect on the Company and the Subsidiaries, taken
     as a whole.

          (v) The Company and the Subsidiaries maintain a system of internal
     accounting controls sufficient to provide reasonable assurance that (i)
     transactions are executed in accordance with management's general or
     specific authorizations; (ii) transactions are recorded as necessary to
     permit preparation of financial statements in conformity with generally
     accepted accounting principles and to maintain asset accountability; (iii)
     access to assets is permitted only in accordance with management's general
     or specific authorization; and (iv) the recorded accountability for assets
     is compared with the existing assets at reasonable intervals and
     appropriate action is taken with respect to any differences.

          (w) No material labor dispute with the employees of the Company or any
     of the Subsidiaries exists, except as described in or contemplated by the
     Prospectus, or, to the knowledge of the Company, is imminent; and, without
     conducting any independent investigation, the Company is not aware of any
     existing, threatened or imminent labor disturbance by the employees of any
     of its principal suppliers, manufacturers or contractors that could
     reasonably be expected to have a material adverse effect on the Company and
     the Subsidiaries, taken as a whole.

          (x) The section of the Prospectus entitled "Shares Eligible for Future
     Sale" properly describes all agreements (collectively, the "Lock-up
     Agreements") that restrict the holders thereof from selling, making any
     short sale of, granting any option for the purchase of, or otherwise
     transferring or disposing of, any of such shares of Common Stock, or any
     such securities convertible into or exercisable or exchangeable for Common
     Stock, for the respective periods of time designated in such Lock-Up
     Agreements, without the prior written consent of the Company or Morgan
     Stanley & Co. Incorporated, and all of such Lock-up Agreements are valid
     and binding.

          (y) The Nasdaq Stock Market, Inc. has approved the Shares to be issued
     by the Company for listing on the Nasdaq National Market upon official
     notice of issuance.

                                      -7-
<PAGE>
 
          (z) The Company has complied with all provisions of Section 517.075,
     Florida Statutes relating to doing business with the Government of Cuba or
     with any person or affiliate located in Cuba.

          2.   Representations and Warranties of the Selling Stockholders. Each
of the Selling Stockholders, including the Insiders (defined below), represents,
warrants and covenants to and agrees with each of the Underwriters that:

          (a) This Agreement has been duly authorized, executed and delivered by
     or on behalf of such Selling Stockholder.

          (b) The execution and delivery by such Selling Stockholder of, and the
     performance by such Selling Stockholder of its obligations under, this
     Agreement, the Stockholder Irrevocable Election to Sell (the "Irrevocable
     Election"), the Selling Stockholder's Irrevocable Power of Attorney
     appointing certain individuals as such Selling Stockholder's attorneys-in-
     fact to the extent set forth therein (the "Power of Attorney"), and the
     Letter of Transmittal and Custody Agreement signed by such Selling
     Stockholder and ChaseMellon Shareholder Services, LLC, as Custodian,
     relating to the deposit of the Shares to be sold by such Selling
     Stockholder (the "Custody Agreement"), relating to the transactions
     contemplated hereby and by the Registration Statement will not contravene
     any provision of applicable law, or the articles of incorporation or by-
     laws of such Selling Stockholder (if such Selling Stockholder is a
     corporation), or any agreement or other instrument binding upon such
     Selling Stockholder or any judgment, order or decree of any governmental
     body, agency or court having jurisdiction over such Selling Stockholder,
     and no consent, approval, authorization or order of, or qualification with,
     any governmental body or agency is required for the performance by such
     Selling Stockholder of its obligations under this Agreement, the
     Irrevocable Election, the Power of Attorney or the Custody Agreement of
     such Selling Stockholder, except such as may be required by the securities
     or Blue Sky laws of the various states in connection with the offer and
     sale of the Shares.

          (c) Such Selling Stockholder has, and on the Closing Date will have,
     valid title to the Shares to be sold by such Selling Stockholder and the
     legal right and power, and all authorization and approval required by law,
     to enter into this Agreement, the Irrevocable Election, the Power of
     Attorney or the Custody Agreement and to sell, transfer and deliver the
     Shares to be sold by such Selling Stockholder.

                                      -8-
<PAGE>
 
          (d) The Shares to be sold by such Selling Stockholder pursuant to this
     Agreement that are outstanding as of the date hereof have been duly
     authorized and are validly issued, fully paid and non-assessable, and the
     Shares to be sold by such Selling Stockholder that are issuable upon
     exercise of outstanding options, will be, upon receipt by the Company of
     the exercise price thereof, validly issued, fully paid and non-assessable.

          (e) The Irrevocable Election, the Custody Agreement and the Power of
     Attorney have been duly authorized, executed and delivered by such Selling
     Stockholder and each is a valid and binding agreement of such Selling
     Stockholder.

          (f) Delivery of the Shares to be sold by such Selling Stockholder
     pursuant to this Agreement will pass title to such Shares free and clear of
     any security interests, claims, liens, equities and other encumbrances.

          (g) All information furnished in writing by or on behalf of such
     Selling Stockholder for use in the Registration Statement is, and on the
     Closing Date will be, true, correct, and complete, and does not, and on the
     Closing Date will not, contain any untrue statement of a material fact or
     omit to state any material fact necessary to make such information not
     misleading, and all information furnished in writing by or on behalf of
     such Selling Stockholder for use in the Prospectus is, and on the Closing
     Date will be, true, correct, and complete, and does not, and on the Closing
     Date will not, contain any untrue statement of a material fact or omit to
     state any material fact necessary to make such information not misleading
     in the light of the circumstances under which they were made.

          (h) Such Selling Stockholder has reviewed the information contained in
     the Registration Statement and, based on such review and such Selling
     Stockholder's knowledge of the industry, the Company and its business (but
     without further investigation), such Selling Stockholder does not have
     knowledge that, and nothing has come to such Selling Stockholder's
     attention that would give such Selling Stockholder reason to believe that,
     at the time the Registration Statement became or becomes, as the case may
     be, effective and at all times subsequent thereto up to and on the Closing
     Date and on any Option Closing Date, (i) the Registration Statement and the
     Prospectus, and any amendments or supplements thereto, contained or will
     contain any untrue statement of a material fact or omitted or will omit to
     state a material fact required to be stated therein or necessary to make
     the statements therein not misleading, and (ii) the Prospectus, and any
     amendments or supplements thereto effective on or prior to the Closing Date
     or any Option Closing Date, contained or will contain any untrue statement
     of a material fact or omitted or omits to state a material fact necessary
     to make the 

                                      -9-
<PAGE>
 
     statements therein, in the light of the circumstances under which they were
     made, not misleading.

          3.   Additional Representations and Warranties of the Insider Selling
Stockholders.  Each of the Selling Stockholders that is an Insider (defined
below) represents and warrants to and agrees with each of the Underwriters that
such Selling Stockholder has reviewed the Company's representations and
warranties contained in Section 2 of this Agreement and, based on such review
and such Selling Stockholder's knowledge of the industry, the Company and its
business (but without further investigation), such Selling Stockholder does not
have knowledge that, and nothing has come to such Selling Stockholder's
attention that would give such Selling Stockholder reason to believe that any of
such Company representations and warranties are not true and correct.  "Insider"
shall mean the Selling Stockholders that are officers and/or directors of the
Company.

          4.   Agreements to Sell and Purchase.  Each Seller, severally and not
jointly, hereby agrees to sell to the several Underwriters, and each
Underwriter, upon the basis of the representations and warranties herein
contained, but subject to the conditions hereinafter stated, agrees, severally
and not jointly, to purchase from such Seller at $_______ a share (the "Purchase
Price") the number of Firm Shares (subject to such adjustments to eliminate
fractional shares as you may determine) that bears the same proportion to the
number of Firm Shares to be sold by such Seller as the number of Firm Shares set
forth in Schedule II hereto opposite the name of such Underwriter bears to the
total number of Firm Shares.

          On the basis of the representations and warranties contained in this
Agreement, and subject to its terms and conditions, the Company agrees to issue
and sell to the Underwriters the Additional Shares, and the Underwriters shall
have a one-time right to purchase, severally and not jointly, up to 360,000
Additional Shares at the Purchase Price.  If you, on behalf of the Underwriters,
elect to exercise such option, you shall so notify the Company in writing not
later than 30 days after the date of this Agreement, which notice shall specify
the number of Additional Shares to be purchased by the Underwriters and the date
on which such shares are to be purchased.  Such date may be the same as the
Closing Date (as defined below) but not earlier than the Closing Date nor later
than ten business days after the date of such notice.  Additional Shares may be
purchased as provided in Section 4 hereof solely for the purpose of covering
over-allotments made in connection with the offering of the Firm Shares.  If any
Additional Shares are to be purchased, each Underwriter agrees, severally and
not jointly, to purchase the number of Additional Shares (subject to such
adjustments to eliminate fractional shares as you may determine) that bears the
same proportion to the total number of Additional Shares to be purchased as the
number of Firm Shares set forth in Schedule II hereto opposite the name of such
Underwriter bears to the total number of Firm Shares.

                                      -10-
<PAGE>
 
          Each Seller hereby agrees that, without the prior written consent of
Morgan Stanley & Co. Incorporated on behalf of the Underwriters, it will not,
during the period ending 90 days after the date of the Prospectus, (i) offer,
pledge, sell, contract to sell, sell any option or contract to purchase,
purchase any option or contract to sell, grant any option, right or warrant to
purchase, lend, or otherwise transfer or dispose of, directly or indirectly, any
shares of Common Stock or any securities convertible into or exercisable or
exchangeable for Common Stock or (ii) enter into any swap or other arrangement
that transfers to another, in whole or in part, any of the economic consequences
of ownership of the Common Stock, whether any such transaction described in
clause (i) or (ii) above is to be settled by delivery of Common Stock or such
other securities, in cash or otherwise.  The foregoing sentence shall not apply
to (A) the sale of any Shares to the Underwriters to be sold hereunder,  (B) the
issuance by the Company of shares of Common Stock upon the exercise of stock
options or warrants outstanding on the date hereof or described as outstanding
or reserved for issuance under the option plans described in the Prospectus, or
any other issuances of Common Stock or options to acquire Common Stock hereafter
under the option or equity incentive plans described in the Prospectus, or (C)
the  issuance by the Company of Common Stock under the employee stock purchase
plan described in the Prospectus.  In addition, each Selling Stockholder agrees
that, without the prior written consent of Morgan Stanley & Co. Incorporated on
behalf of the Underwriters, it will not, during the period ending 90 days after
the date of the Prospectus, make any demand for, or exercise any right with
respect to, the registration of any shares of Common Stock or any security
convertible into or exercisable or exchangeable for Common Stock.

          5. Terms of Public Offering.  The Sellers are advised by you that the
Underwriters propose to make a public offering of their respective portions of
the Shares as soon after the Registration Statement and this Agreement have
become effective as in your judgment is advisable.  The Sellers are further
advised by you that the Shares are to be offered to the public initially at
$_____ a share (the "Public Offering Price") and to certain dealers selected by
you at a price that represents a concession not in excess of $____ a share under
the Public Offering Price, and that any Underwriter may allow, and such dealers
may reallow, a concession, not in excess of $____ a share, to any Underwriter or
to certain other dealers.

          6. Payment and Delivery.  Payment for the Firm Shares to be sold by
each Seller shall be made to such Seller in Federal or other funds immediately
available in New York City against delivery of such Firm Shares for the
respective accounts of the several Underwriters at 10:00 a.m., New York City
time, on ________ __, 1999[4 DAYS AFTER DATE OF AGREEMENT], or at such other
time on the same or such other date, not later than ________ __, 1999[5 DAYS
AFTER DATE OF AGREEMENT], as shall be designated in writing by you. The time and
date of such payment are hereinafter referred to as the "Closing Date".

                                      -11-
<PAGE>
 
          Payment for any Additional Shares shall be made to [the Company][each
Seller] in Federal or other funds immediately available in New York City against
delivery of such Additional Shares for the respective accounts of the several
Underwriters at 10:00 a.m., New York City time, on the date specified in the
notice described in Section 4 or at such other time on the same or on such other
date, in any event not later than ________ __, 1999[10 DAYS AFTER OPTION
EXPIR.], as shall be designated in writing by you.  The time and date of such
payment are hereinafter referred to as the "Option Closing Date".

          Certificates for the Firm Shares and Additional Shares shall be in
definitive form and registered in such names and in such denominations as you
shall request in writing not later than one full business day prior to the
Closing Date or the Option Closing Date, as the case may be.  The certificates
evidencing the Firm Shares and Additional Shares shall be delivered to you on
the Closing Date or the Option Closing Date, as the case may be, for the
respective accounts of the several Underwriters, with any transfer taxes payable
in connection with the transfer of the Shares to the Underwriters duly paid,
against payment of the Purchase Price therefor.

          7.   Conditions to the Underwriters' Obligations.  The obligations of
the Sellers to sell the Shares to the Underwriters and the several obligations
of the Underwriters to purchase and pay for the Shares on the Closing Date are
subject to the condition that the Registration Statement shall have become
effective not later than 5:30 p.m. (New York City time) on the date hereof.

          The several obligations of the Underwriters are subject to the
following further conditions:

          (a) Subsequent to the execution and delivery of this Agreement and
     prior to the Closing Date:

                  (i) there shall not have occurred any downgrading, nor shall
          any notice have been given of any intended or potential downgrading or
          of any review for a possible change that does not indicate the
          direction of the possible change, in the rating accorded any of the
          Company's securities by any "nationally recognized statistical rating
          organization," as such term is defined for purposes of Rule 436(g)(2)
          under the Securities Act; and

                  (ii) there shall not have occurred any change, or any
          development involving a prospective change, in the condition,
          financial or otherwise, or in the earnings, business or operations of
          the Company and the Subsidiary, taken as a whole, from that set forth
          in the Prospectus (exclusive of any amendments or supplements thereto
          subsequent to the date of this Agreement) that, in your judgment, is
          material and adverse and 

                                      -12-
<PAGE>
 
          that makes it, in your judgment, impracticable to market the Shares on
          the terms and in the manner contemplated in the Prospectus.

          (b) The Underwriters shall have received on the Closing Date a
     certificate, dated the Closing Date and signed by an executive officer of
     the Company, to the effect set forth in Section 5(a) above and to the
     effect that the representations and warranties of the Company contained in
     this Agreement are true and correct as of the Closing Date and that the
     Company has complied with all of the agreements and satisfied all of the
     conditions on its part to be performed or satisfied hereunder on or before
     the Closing Date.

          The officer signing and delivering such certificate may rely upon  his
     or her knowledge as to proceedings threatened.

          (c) The Underwriters shall have received on the Closing Date a
     certificate, dated the Closing Date and signed by the Selling Stockholders
     (or by their attorney-in-fact on their behalf), to the effect that the
     representations and warranties of the Selling Stockholders (and, in the
     case of the Selling Stockholders that are Insiders, that the additional
     representations and warranties of the Selling Stockholders that are
     Insiders) contained in this Agreement are true and correct as of the
     Closing Date and that each Selling Stockholder has complied with all of the
     agreements and satisfied all of the conditions on its part to be performed
     or satisfied hereunder on or before the Closing Date.

          (d) The Underwriters shall have received on the Closing Date an
     opinion of Fenwick & West LLP, special securities counsel for the Company,
     dated the Closing Date, to the effect that:

                  (i)    each of the Company, VeriSign AB and SecureIT has been
          duly incorporated, is validly existing as a corporation in good
          standing under the laws of the jurisdiction of its incorporation, has
          the corporate power and corporate authority to own its property and to
          conduct its business as described in the Prospectus and is duly
          qualified to transact business and is in good standing in each
          jurisdiction in which the conduct of its business or its ownership or
          leasing of property requires such qualification, except to the extent
          that the failure to be so qualified or be in good standing would not
          have a material adverse effect on the Company and the Subsidiaries,
          taken as a whole;

                  (ii)   the authorized capital stock of the Company conforms in
          all material respects as to legal matters to the description thereof
          contained in the Prospectus;

                                      -13-
<PAGE>
 
                  (iii)  the shares of Common Stock (including the Shares to be
          sold by the Selling Stockholders) outstanding prior to the issuance of
          the Shares have been duly authorized, are validly issued and non-
          assessable, and to such counsel's knowledge, are fully paid;

                  (iv)   the Shares to be sold by the Company have been duly
          authorized and, when issued and delivered in accordance with the terms
          of this Agreement, will be validly issued, fully paid and non-
          assessable, and the issuance of such Shares will not be subject to any
          preemptive right or right of first refusal pursuant to the Company's
          certificate of incorporation or bylaws or, to such counsel's
          knowledge, similar rights;

                  (v)    this Agreement has been duly authorized, executed and
          delivered by the Company;

                  (vi)   the execution and delivery by the Company of, and the
          performance by the Company of its obligations under, this Agreement
          will not contravene any provision of applicable law or the certificate
          of incorporation or by-laws of the Company or, to such counsel's
          knowledge, any agreement or other instrument binding upon the Company
          or any of the Subsidiaries that is material to the Company and the
          Subsidiaries, taken as a whole, or, to such counsel's knowledge, any
          judgment, order or decree of any governmental body, agency or court
          having jurisdiction over the Company or any of the Subsidiaries that
          specifically refers to or is binding on the Company or any of the
          Subsidiaries, and no consent, approval, authorization or order of, or
          qualification with, any governmental body or agency is required for
          the performance by the Company of its obligations under this
          Agreement, except such as may be required by the securities or Blue
          Sky laws of the various states in connection with the offer and sale
          of the Shares by the Underwriters or the rules and regulations of the
          NASD (as to which such counsel need not express any opinion);

                  (vii)  the statements (A) in the Prospectus under the captions
          "Risk Factors--Future Sale of Shares Could Affect Our Stock Price,"
          "Dividend Policy," "Certain Transactions," "Shares Eligible for Future
          Sale," "Description of Capital Stock," "Management" and "Underwriters"
          and (B) in the Registration Statement in Items 14 and 15, in each case
          insofar as such statements constitute summaries of the legal matters,
          documents or proceedings referred to therein, fairly present the
          information called for with respect to such legal matters, documents
          and proceedings and fairly summarize the matters referred to therein;

                                      -14-
<PAGE>
 
                  (viii) such counsel does not know of any legal, regulatory or
          governmental proceedings pending or threatened to which the Company or
          any of the Subsidiaries is a party or to which any of the properties
          of the Company or any of the Subsidiaries is subject that are required
          to be described in the Registration Statement or the Prospectus and
          are not so described or of any statutes, regulations, contracts or
          other documents that are required to be described in the Registration
          Statement or the Prospectus or to be filed as exhibits to the
          Registration Statement that are not described or filed as required;

                  (ix)   the Company is not and, after giving effect to the
          offering and sale of the Shares and the application of the proceeds
          thereof as described in the Prospectus, will not be an "investment
          company" as such term is defined in the Investment Company Act of
          1940, as amended;

                  (x)    to such counsel's knowledge: (1) based solely on oral
          advice of the Staff of the Commission,  the Registration Statement has
          become effective under the Securities Act; (2) no stop order
          proceedings with respect to the Registration Statement have been
          instituted or are pending or threatened under the Securities Act and
          nothing has come to such counsel's attention to lead it to believe
          that such proceedings are contemplated; and (3) any required filing of
          the Prospectus and any supplement thereto pursuant to Rule 424(b)
          under the Securities Act has been made in the manner and within the
          time period required by such Rule 424(b);
 
                  (xi)   no shares of Common Stock are required to be registered
          under the Registration Statement and no person or entity has any right
          to cause any shares of Common Stock to be registered under the
          Registration Statement, pursuant to the Company's certificate of
          incorporation or by-laws or, to such counsel's knowledge, any
          agreement or other right, which rights have not been validly waived;
          and

                  (xii)  based on a letter from the NASDAQ Stock Market, the
          shares to be sold under this Agreement to the Underwriters are duly
          authorized for quotation on the NASDAQ National Market; and

                  (xiii) in addition to the matters set forth above, counsel
          rendering the foregoing opinion shall also include a statement to the
          effect that nothing has come to the attention of such counsel that
          causes it to believe that (i) the Registration Statement (except as to
          the financial statements, the notes thereto and the other financial
          and statistical data contained therein, as to which such counsel need
          not express any opinion or belief) at the date the Registration
          Statement became effective contained any untrue 

                                      -15-
<PAGE>
 
          statement of a material fact or omitted to state a material fact
          required to be stated therein or necessary to make the statements
          therein not misleading, (2) the Prospectus (except as to the financial
          statements, the notes thereto and the other financial and statistical
          data contained therein, as to which such counsel need not express any
          opinion or belief) as of its date contained or contains any untrue
          statement of a material fact or omitted or omits to state a material
          fact necessary in order to make the statements therein, in the light
          of the circumstances under which they were made, not misleading or (3)
          the Registration Statement or the Prospectus (except as to the
          financial statements, the notes thereto and the other financial and
          statistical data contained therein, as to which such counsel need not
          express any opinion or belief) did not comply as to form in all
          material respects with the Securities Act and the applicable rules and
          regulations thereunder.

          (e) The Underwriters shall have received on the Closing Date an
     opinion of Fenwick & West LLP, counsel for the Selling Stockholders, dated
     the Closing Date, to the effect that:

               (i)   this Agreement has been duly authorized, executed and
     delivered by or on behalf of each of the Selling Stockholders;

               (ii)  the execution and delivery by or on behalf of each Selling
     Stockholder of, and the performance by such Selling Stockholder of its
     obligations under, this Agreement and the Irrevocable Election, the Power
     of Attorney and the Custody Agreement of such Selling Stockholder will not
     contravene any provision of applicable law, or the articles of
     incorporation or bylaws or trust documents, as applicable, of such Selling
     Stockholder or, to the best of such counsel's knowledge, any agreement or
     other instrument binding upon such Selling Stockholder or, to the best of
     such counsel's knowledge, any judgment, order or decree of any governmental
     body, agency or court having jurisdiction over such Selling Stockholder;

               (iii) no consent, approval, authorization or order of, or
     qualification with, any governmental body or agency is required for the
     performance by each Selling Stockholder of its obligations under this
     Agreement and the Irrevocable Election, the Power of Attorney and the
     Custody Agreement of such Selling Stockholder, except such as may be
     required by the securities or Blue Sky laws of the various states in
     connection with offer and sale of the Shares;

               (iv)  each of the Selling Stockholders is the sole registered
     owner of the Shares to be sold by such Selling Stockholder, has valid title

                                      -16-
<PAGE>
 
     to the Shares to be sold by such Selling Shareholder and has the legal
     right and power and all authorization and approval required by law to enter
     into this Agreement and the Irrevocable Election, the Power of Attorney and
     the Custody Agreement of such Selling Stockholder and to sell, transfer and
     deliver the Shares to be sold by such Selling Stockholder;

               (v)   the Irrevocable Election, the Power of Attorney and the
     Custody Agreement of each Selling Stockholder has been duly authorized,
     executed and delivered by such Selling Stockholder and are valid and
     binding agreements of such Selling Stockholder;

               (vi)  upon the delivery of and payment for the Shares as
     contemplated in the Underwriting Agreement, each of the Underwriters will
     receive valid marketable title to the Shares purchased by it from such
     Selling Stockholder, free of any adverse claim, assuming the Underwriters
     purchase such Shares for value, in good faith and without notice of any
     adverse claim, as such terms are defined in the Uniform Commercial Code in
     effect in the State of California.

          (f) The Underwriters shall have received on the Closing Date an
     opinion of Wilson Sonsini Goodrich & Rosati, counsel for the Underwriters,
     dated the Closing Date, covering the matters referred to in Sections
     7(d)(iv), 7(d)(v), 7(d)(vii) (but only as to the statements in the
     Prospectus under "Description of Capital Stock" and "Underwriters") and
     7(d)(xiii) above.

          With respect to Section 7(d)(xiii) above, Fenwick & West and Wilson
     Sonsini Goodrich & Rosati may state that their opinion and belief are based
     upon their participation in the preparation of the Registration Statement
     and Prospectus and any amendments or supplements thereto and review and
     discussion of the contents thereof, but are without independent check or
     verification, except as specified.

          The opinion of Fenwick & West described in Section 7(d) and 7(e) above
     shall be rendered to the Underwriters at the request of the Company and
     shall so state therein.

          With respect to Section 7(e) above, Fenwick & West LLP may rely upon
     an opinion or opinions of counsel for any Selling Shareholders and, with
     respect to factual matters and to the extent such counsel deems
     appropriate, upon the representations of each Selling Shareholder contained
     herein and in the Irrevocable Election, the Custody Agreement and the Power
     of Attorney of such Selling Shareholder and in other documents and
     instruments; provided that (A) each such counsel for the Selling
     Shareholders is satisfactory to your counsel, (B) a copy of each opinion so
     relied upon is delivered to you and is in form and 

                                      -17-
<PAGE>
 
     substance satisfactory to your counsel, (C) copies of such Irrevocable
     Elections, Custody Agreements and Powers of Attorney and of any such other
     documents and instruments shall be delivered to you and shall be in form
     and substance satisfactory to your counsel and Fenwick & West LLP shall
     state in their opinion that they are justified in relying on each such
     other opinion.

          (g) The Underwriters shall have received, on each of the date hereof
     and the Closing Date, a letter dated the date hereof or the Closing Date,
     as the case may be, in form and substance satisfactory to the Underwriters,
     from KPMG Peat Marwick LLP, independent public accountants, containing
     statements and information of the type ordinarily included in accountants'
     "comfort letters" to underwriters with respect to the financial statements
     and certain financial information contained in the Registration Statement
     and the Prospectus; provided that the letter delivered on the Closing Date
     shall use a "cut-off date" not earlier than the date hereof.

          (h) The "Lock-up Agreements," each substantially in the form of
     Exhibit A hereto, between you and certain shareholders, officers and
     directors of the Company relating to sales and certain other dispositions
     of shares of Common Stock or certain other securities, delivered to you on
     or before the date hereof, shall be in full force and effect on the Closing
     Date.

          (i) The Shares shall have received approval for listing, upon official
     notice of issuance, on the Nasdaq National Market.

          (j) The Underwriters shall have received on the Closing Date an
     opinion of counsel to VeriSign Japan, dated the Closing Date, to the effect
     that:

                  (i)    VeriSign Japan has been duly incorporated, is validly
          existing as a corporation in good standing under the laws of the
          jurisdiction of its incorporation, has the corporate power and
          corporate authority to own its property and to conduct its business as
          described in the Prospectus and is duly qualified to transact business
          and is in good standing in each jurisdiction in which the conduct of
          its business or its ownership or leasing of property requires such
          qualification, except to the extent that the failure to be so
          qualified or be in good standing would not have a material adverse
          effect on the Company and the Subsidiaries, taken as a whole;

                  (ii)   VeriSign Japan has 2,560 shares of capital stock issued
          and outstanding, of which the Company owns 1,292 shares; and all of
          the issued shares of capital stock of VeriSign Japan have been duly
          and validly authorized and issued, are fully paid and non-assessable
          and such 

                                      -18-
<PAGE>
 
          shares which are owned by the Company are owned directly by the
          Company, free and clear of all liens, encumbrances, equities or
          claims; and

                  (iii)  the execution and delivery by the Company of, and the
          performance by the Company of its obligations under, this Agreement
          will not contravene any provision of the certificate of incorporation
          or by-laws of VeriSign Japan.

          All the agreements, opinions, certificates and letters mentioned above
or elsewhere in this Agreement shall be deemed in compliance with the provisions
hereof only if Wilson Sonsini Goodrich & Rosati, counsel for the Underwriters,
shall be reasonably satisfied that they comply in form and scope.

          The several obligations of the Underwriters to purchase Additional
Shares hereunder are subject to the delivery to you on the Option Closing Date
of such documents as you may reasonably request with respect to the good
standing of the Company, the due authorization and issuance of the Additional
Shares and other matters related to the issuance of the Additional Shares and an
opinion or opinions of Fenwick & West LLP in form and substance satisfactory to
Wilson Sonsini Goodrich & Rosati, counsel for the Underwriters.

          8.   Covenants of the Company.  In further consideration of the
agreements of the Underwriters herein contained, the Company covenants with each
Underwriter as follows:

          (a) To furnish to you, without charge, five (5) signed copies of the
     Registration Statement (including exhibits thereto) and for delivery to
     each other Underwriter a conformed copy of the Registration Statement
     (without exhibits thereto) and to furnish to you in New York City, without
     charge, prior to 5:00 p.m. New York City time on the business day next
     succeeding the date of this Agreement and during the period mentioned in
     Section 6(c) below, as many copies of the Prospectus and any supplements
     and amendments thereto or to the Registration Statement as you may
     reasonably request.

          (b) Before amending or supplementing the Registration Statement or the
     Prospectus, to furnish to you a copy of each such proposed amendment or
     supplement and not to file any such proposed amendment or supplement to
     which you reasonably object, and to file with the Commission within the
     applicable period specified in Rule 424(b) under the Securities Act any
     prospectus required to be filed pursuant to such Rule.

          (c) If, during such period after the first date of the public offering
     of the Shares as in the opinion of counsel for the Underwriters the
     Prospectus is required by law to be delivered in connection with sales by
     an Underwriter or 

                                      -19-
<PAGE>
 
     dealer, any event shall occur or condition exist as a result of which it is
     necessary to amend or supplement the Prospectus in order to make the
     statements therein, in the light of the circumstances when the Prospectus
     is delivered to a purchaser, not misleading, or if, in the reasonable
     opinion of counsel for the Underwriters, it is necessary to amend or
     supplement the Prospectus to comply with applicable law, forthwith to
     prepare, file with the Commission and furnish, at its own expense, to the
     Underwriters and to the dealers (whose names and addresses you will furnish
     to the Company) to which Shares may have been sold by you on behalf of the
     Underwriters and to any other dealers upon request, either amendments or
     supplements to the Prospectus so that the statements in the Prospectus as
     so amended or supplemented will not, in the light of the circumstances when
     the Prospectus is delivered to a purchaser, be misleading or so that the
     Prospectus, as amended or supplemented, will comply with law.

          (d) To endeavor to qualify the Shares for offer and sale under the
     securities or Blue Sky laws of such jurisdictions as you shall reasonably
     request.

          (e) To make generally available to the Company's security holders and
     to you as soon as practicable an earning statement covering the twelve-
     month period ending March 31, 2000 that satisfies the provisions of Section
     11(a) of the Securities Act and the rules and regulations of the Commission
     thereunder.

          (f) During a period of three years from the effective date of the
     Registration Statement, the Company will furnish to you copies of (i) all
     reports to its stockholders and (ii) all reports, financial statements and
     proxy or information statements filed by the Company with the Commission or
     any national securities exchange.

          (g) The Company will apply the proceeds from the sale of the Shares as
     set forth under "Use of Proceeds" in the Prospectus.

          (h) The Company will use its best efforts to obtain and maintain in
     effect the quotation of the Shares on the Nasdaq National Market and will
     take all necessary steps to cause the Shares to be included on the Nasdaq
     National Market as promptly as practicable and to maintain such inclusion
     for a period of three years after the date hereof or until such earlier
     date as the Shares shall be listed for regular trading privileges on
     another national securities exchange approved by you.

          (i) The Company will comply with all registration, filing and
     reporting requirements of the Securities Exchange Act of 1934, as amended
     (the "Exchange Act"), which may from time to time be applicable to the
     Company.

                                      -20-
<PAGE>
 
          (j) The Company will comply with all provisions of all undertakings
     contained in the Registration Statement.

          (k) Prior to the Closing Date, the Company will not, directly or
     indirectly,  issue any press release or other communication and will not
     hold any press conference with respect to the Company, or its financial
     condition, results of operations, business, properties, assets, or
     prospects or this offering, without your prior written consent.

          (l) The Company agrees:  (i) to enforce the terms of each Lock-up
     Agreement and (ii) issue stop-transfer instructions to the transfer agent
     for the Common Stock with respect to any transaction or contemplated
     transaction that would constitute a breach of or default under the
     applicable Lock-up Agreement. In addition, except with the prior written
     consent of Morgan Stanley, the Company agrees (i) not to amend or
     terminate, or waive any right under, any Lock-up Agreement, or take any
     other action that would directly or indirectly have the same effect as an
     amendment or termination, or waiver of any right under, any Lock-up
     Agreement, that would permit any holder of shares of Common Stock, or
     securities convertible into or exercisable or exchangeable for Common
     Stock, to sell, make any short sale of, grant any option for the purchase
     of, or otherwise transfer or dispose of, any of such shares of Common Stock
     or other securities prior to the expiration of 90 days after the date of
     the Prospectus, and (ii) not to consent to any sale, short sale, grant of
     an option for the purchase of, or other disposition or transfer of shares
     of Common Stock, or securities convertible into or exercisable or
     exchangeable for Common Stock, subject to a Lock-up Agreement.

          (m) The Company will place a restrictive legend on any shares of
     Common Stock acquired by a person subject to a Lock-Up Agreement pursuant
     to the exercise, after the date hereof and prior to the expiration of the
     90-day period after the date of the Prospectus, of any option granted under
     the option or equity incentive plans described in the Prospectus, which
     legend shall restrict the transfer of such shares prior to the expiration
     of such 90-day period.

          (n) Whether or not the transactions contemplated in this Agreement are
     consummated or this Agreement is terminated, to pay or cause to be paid all
     expenses incident to the performance of its obligations under this
     Agreement, including:  (i) the fees, disbursements and expenses of the
     Company's counsel and the Company's accountants in connection with the
     registration and delivery of the Shares under the Securities Act and all
     other fees or expenses in connection with the preparation and filing of the
     Registration Statement, any preliminary prospectus, the Prospectus and
     amendments and supplements to any of the foregoing, including all printing
     costs associated therewith, and the mailing and delivering of copies
     thereof to the Underwriters and dealers, in the quantities 

                                      -21-
<PAGE>
 
     hereinabove specified, (ii) all costs and expenses related to the transfer
     and delivery of the Shares to the Underwriters, including any transfer or
     other taxes payable thereon, (iii) the cost of printing or producing any
     Blue Sky or Legal Investment memorandum in connection with the offer and
     sale of the Shares under state securities laws and all expenses in
     connection with the qualification of the Shares for offer and sale under
     state securities laws as provided in Section 8(d) hereof, including filing
     fees and the reasonable fees and disbursements of counsel for the
     Underwriters in connection with such qualification and in connection with
     the Blue Sky or Legal Investment memorandum, (iv) all filing fees and the
     reasonable fees and disbursements of counsel to the Underwriters incurred
     in connection with the review and qualification of the offering of the
     Shares by the National Association of Securities Dealers, Inc., (v) all
     costs and expenses incident to listing the Shares on the Nasdaq National
     Market, (vi) the cost of printing certificates representing the Shares,
     (vii) the costs and charges of any transfer agent, registrar or depositary,
     (viii) the costs and expenses of the Company relating to investor
     presentations on any "road show" undertaken in connection with the
     marketing of the offering of the Shares, including, without limitation,
     expenses associated with the production of road show slides and graphics,
     fees and expenses of any consultants engaged in connection with the road
     show presentations with the prior approval of the Company, travel and
     lodging expenses of the representatives and officers of the Company and any
     such consultants, and one half the cost of any aircraft chartered or
     limousines hired in connection with the road show, and (ix) all other costs
     and expenses incident to the performance of the obligations of the Company
     hereunder for which provision is not otherwise made in this Section. It is
     understood, however, that except as provided in this Section, Section 9
     entitled "Indemnity and Contribution", and the last paragraph of Section 11
     below, the Underwriters will pay all of their costs and expenses, including
     fees and disbursements of their counsel, travel, meals and lodging expenses
     of the representatives and officers of the Underwriters, the costs of
     conference rooms and meals for "road show" meetings, one half the cost of
     any aircraft chartered or limousines hired in connection with the "road
     show," stock transfer taxes payable on resale of any of the Shares by them
     and any advertising expenses connected with any offers they may make.

          9.   Indemnity and Contribution.  (a)  The Company and the Selling
Stockholders that are Insiders, jointly and severally, agree to indemnify and
hold harmless each Underwriter and each person, if any, who controls any
Underwriter within the meaning of either Section 15 of the Securities Act or
Section 20 of the Exchange Act, from and against any and all losses, claims,
damages and liabilities (including, without limitation, any legal or other
expenses reasonably incurred in connection with defending or investigating any
such action or claim) caused by any untrue statement or alleged untrue statement
of a material fact contained in the Registration Statement or any amendment
thereof, any preliminary prospectus or the Prospectus (as amended or
supplemented if the Company shall have furnished any amendments or supplements

                                      -22-
<PAGE>
 
thereto), or caused by any omission or alleged omission to state therein a
material fact required to be stated therein or necessary to make the statements
therein not misleading, except insofar as such losses, claims, damages or
liabilities are caused by any such untrue statement or omission or alleged
untrue statement or omission based upon information relating to any Underwriter
furnished to the Company in writing by such Underwriter through you expressly
for use therein; provided, that the foregoing indemnity agreement with respect
to any preliminary prospectus shall not inure to the benefit of any Underwriter
from whom the person asserting any such losses, claims, damages or liabilities
purchased Shares, or any person controlling such Underwriter, if a copy of the
Prospectus (as then amended or supplemented if the Company shall have furnished
any amendments or supplements thereto) was not sent or given by or on behalf of
such Underwriter to such person, if required by law so to have been delivered,
at or prior to the written confirmation of the sale of the Shares to such
person, and if the Prospectus (as so amended or supplemented) would have cured
the defect giving rise to such losses, claims, damages or liabilities, unless
such failure is the result of noncompliance by the Company with Section 8(a)
hereof.  The liability of each Selling Stockholder that is an Insider under the
indemnity agreement contained in this paragraph 9(a) shall be limited to an
amount equal to the net proceeds received by such Selling Stockholder from the
offering of the Shares sold by such Selling Stockholder (and from the offering
of any other Shares hereunder which are reflected in the Prospectus (under
the caption "Principal and Selling Stockholders") as beneficially owned by such
Selling Shareholder prior to the offering (notwithstanding any disclaimer of
beneficial ownership that may be in the Prospectus)).

          (b) Each Selling Stockholder (other than the Selling Stockholders that
are Insiders) agrees, severally and not jointly, to indemnify and hold harmless
each Underwriter and each person, if any, who controls any Underwriter within
the meaning of either Section 15 of the Securities Act or Section 20 of the
Exchange Act, or is under common control with, or is controlled by, any
Underwriter, and the Company, its directors, its officers who sign the
Registration Statement and each person, if any, who controls the Company within
the meaning of either Section 15 of the Securities Act or Section 20 of the
Exchange Act, from and against any and all losses, claims, damages and
liabilities (including, without limitation, any legal or other expenses
reasonably incurred in connection with defending or investigating any such
action or claim) caused by any untrue statement or alleged untrue statement of a
material fact contained in the Registration Statement or any amendment thereof,
any preliminary prospectus or the Prospectus (as amended or supplemented if the
Company shall have furnished any amendments or supplements thereto), or caused
by any omission or alleged omission to state therein a material fact required to
be stated therein or necessary to make the statements therein not misleading,
but only (i) with reference to information relating to such Selling Stockholder
furnished in writing by or on behalf of such Selling Stockholder expressly for
use in the Registration Statement, any preliminary prospectus, the Prospectus or
any amendments or supplements thereto or (ii) to the extent that the Selling
Stockholder had knowledge that or reason to believe that the Registration
Statement, any

                                      -23-
<PAGE>
 
preliminary prospectus, the Prospectus or any amendments or supplements thereto
contained such untrue statement or alleged untrue statement or omission or
alleged omission, and except insofar as such losses, claims, damages or
liabilities are caused by any such untrue statement or omission or alleged
untrue statement or omission based upon information relating to any Underwriter
furnished to the Company in writing by such Underwriter through you expressly
for use therein. The liability of each Selling Stockholder under the indemnity
agreement contained in this paragraph shall be limited to an amount equal to the
net proceeds received by such Selling Stockholder from the offering of the
Shares sold by such Selling Stockholder (and from the offering of any other
Shares hereunder which are reflected in the the Prospectus (under the caption
"Principal and Selling Stockholders") as beneficially owned by such Selling
Shareholder prior to the offering (notwithstanding any disclaimer of beneficial
ownership that may be in the Prospectus)).

          (c) Each Underwriter agrees, severally and not jointly, to indemnify
and hold harmless the Company, the Selling Stockholders, the directors of the
Company, the officers of the Company who sign the Registration Statement and
each person, if any, who controls the Company or any selling Stockholder within
the meaning of either Section 15 of the Securities Act or Section 20 of the
Exchange Act from and against any and all losses, claims, damages and
liabilities (including, without limitation, any legal or other expenses
reasonably incurred in connection with defending or investigating any such
action or claim) caused by any untrue statement or alleged untrue statement of a
material fact contained in the Registration Statement or any amendment thereof,
any preliminary prospectus or the Prospectus (as amended or supplemented if the
Company shall have furnished any amendments or supplements thereto), or caused
by any omission or alleged omission to state therein a material fact required to
be stated therein or necessary to make the statements therein not misleading,
but only with reference to information relating to such Underwriter furnished to
the Company in writing by such Underwriter through you expressly for use in the
Registration Statement, any preliminary prospectus, the Prospectus or any
amendments or supplements thereto.

          (d) In case any proceeding (including any governmental investigation)
shall be instituted involving any person in respect of which indemnity may be
sought pursuant to Section 9(a), 9(b) or 9(c), such person (the "Indemnified
Party") shall promptly notify the person against whom such indemnity may be
sought (the "Indemnifying Party") in writing and the Indemnifying Party, upon
request of the Indemnified Party, shall retain counsel reasonably satisfactory
to the Indemnified Party to represent the Indemnified Party and any others the
Indemnifying Party may designate in such proceeding and shall pay the fees and
disbursements of such counsel related to such proceeding. In any such
proceeding, any Indemnified Party shall have the right to retain its own
counsel, but the fees and expenses of such counsel shall be at the expense of
such Indemnified Party unless (i) the Indemnifying Party and the Indemnified
Party shall have mutually agreed to the retention of such counsel or (ii) the
named parties to any such proceeding (including any impleaded parties) include
both the Indemnifying Party and

                                      -24-
<PAGE>
 
the Indemnified Party and representation of both parties by the same counsel
would be inappropriate due to actual or potential differing interests between
them. It is understood that the Indemnifying Party shall not, in respect of the
legal expenses of any Indemnified Party in connection with any proceeding or
related proceedings in the same jurisdiction, be liable for (i) the fees and
expenses of more than one separate firm (in addition to any local counsel) for
all Underwriters and all persons, if any, who control any Underwriter within the
meaning of either Section 15 of the Securities Act or Section 20 of the Exchange
Act, (ii) the fees and expenses of more than one separate firm (in addition to
any local counsel) for the Company, its directors, its officers who sign the
Registration Statement and each person, if any, who controls the Company within
the meaning of either such Section and (iii) the fees and expenses of more than
one separate firm (in addition to any local counsel) for all Selling
Stockholders and all persons, if any, who control any Selling Stockholder within
the meaning of either such Section, and that all such fees and expenses shall be
reimbursed as they are incurred. In the case of any such separate firm for the
Underwriters and such control persons of any Underwriters, such firm shall be
designated in writing by Morgan Stanley & Co. Incorporated. In the case of any
such separate firm for the Company, and such directors, officers and control
persons of the Company, such firm shall be designated in writing by the Company.
In the case of any such separate firm for the Selling Stockholders and such
control persons of any Selling Stockholders, such firm shall be designated in
writing by the persons named as attorneys-in-fact for the Selling Stockholders
under the Power of Attorney. The Indemnifying Party shall not be liable for any
settlement of any proceeding effected without its written consent, but if
settled with such consent or if there be a final judgment for the plaintiff, the
Indemnifying Party agrees to indemnify the Indemnified Party from and against
any loss or liability by reason of such settlement or judgment. Notwithstanding
the foregoing sentence, if at any time an Indemnified Party shall have requested
an Indemnifying Party to reimburse the Indemnified Party for fees and expenses
of counsel as contemplated by the second and third sentences of this paragraph,
the Indemnifying Party agrees that it shall be liable for any settlement of any
proceeding effected without its written consent if (i) such settlement is
entered into more than 30 days after receipt by such Indemnifying Party of the
aforesaid request and (ii) such Indemnifying Party shall not have reimbursed the
Indemnified Party in accordance with such request prior to the date of such
settlement. No Indemnifying Party shall, without the prior written consent of
the Indemnified Party, effect any settlement of any pending or threatened
proceeding in respect of which any Indemnified Party is or could have been a
party and indemnity could have been sought hereunder by such Indemnified Party,
unless such settlement includes an unconditional release of such Indemnified
Party from all liability on claims that are the subject matter of such
proceeding.

          (e) To the extent the indemnification provided for in Section 9(a),
9(b) or 9(c) is unavailable to an Indemnified Party or insufficient in respect
of any losses, claims, damages or liabilities referred to therein, then each
Indemnifying Party under such paragraph, in lieu of indemnifying such
Indemnified Party thereunder, shall contribute to the amount paid or payable by
such Indemnified Party as a result of such 

                                      -25-
<PAGE>
 
losses, claims, damages or liabilities (i) in such proportion as is appropriate
to reflect the relative benefits received by the Indemnifying Party or parties
on the one hand and the Indemnified Party or parties on the other hand from the
offering of the Shares or (ii) if the allocation provided by clause 9(e)(i)
above is not permitted by applicable law, in such proportion as is appropriate
to reflect not only the relative benefits referred to in clause 9(e)(i) above
but also the relative fault of the Indemnifying Party or parties on the one hand
and of the Indemnified Party or parties on the other hand in connection with the
statements or omissions that resulted in such losses, claims, damages or
liabilities, as well as any other relevant equitable considerations. The
relative benefits received by the Sellers on the one hand and the Underwriters
on the other hand in connection with the offering of the Shares shall be deemed
to be in the same respective proportions as the net proceeds from the offering
of the Shares (before deducting expenses) received by each Seller and the total
underwriting discounts and commissions received by the Underwriters, in each
case as set forth in the table on the cover of the Prospectus, bear to the
aggregate Public Offering Price of the Shares. The relative fault of the Sellers
on the one hand and the Underwriters on the other hand shall be determined by
reference to, among other things, whether the untrue or alleged untrue statement
of a material fact or the omission or alleged omission to state a material fact
relates to information supplied by the Sellers or by the Underwriters and the
parties' relative intent, knowledge, access to information and opportunity to
correct or prevent such statement or omission. The Underwriters' respective
obligations to contribute pursuant to this Section 9 are several in proportion
to the respective number of Shares they have purchased hereunder, and not joint.

          (f) The Sellers and the Underwriters agree that it would not be just
or equitable if contribution pursuant to this Section 9 were determined by pro
rata allocation (even if the Underwriters were treated as one entity for such
purpose) or by any other method of allocation that does not take account of the
equitable considerations referred to in Section 9(e).  The amount paid or
payable by an Indemnified Party as a result of the losses, claims, damages and
liabilities referred to in the immediately preceding paragraph shall be deemed
to include, subject to the limitations set forth above, any legal or other
expenses reasonably incurred by such Indemnified Party in connection with
investigating or defending any such action or claim.  Notwithstanding the
provisions of this Section 9, no Underwriter shall be required to contribute any
amount in excess of the amount by which the total price at which the Shares
underwritten by it and distributed to the public were offered to the public
exceeds the amount of any damages that such Underwriter has otherwise been
required to pay by reason of such untrue or alleged untrue statement or omission
or alleged omission.  No person guilty of fraudulent misrepresentation (within
the meaning of Section 11(f) of the Securities Act) shall be entitled to
contribution from any person who was not guilty of such fraudulent
misrepresentation.  The remedies provided for in this Section 9 are not
exclusive and shall not limit any rights or remedies which may otherwise be
available to any Indemnified Party at law or in equity.

                                      -26-
<PAGE>
 
          (g) The indemnity and contribution provisions contained in this
Section 9 and the representations, warranties and other statements of the
Company and the Selling Stockholders contained in this Agreement shall remain
operative and in full force and effect regardless of (i) any termination of this
Agreement, (ii) any investigation made by or on behalf of any Underwriter or any
person controlling any Underwriter, any Selling Stockholder or any person
controlling any Selling Stockholder or by or on behalf of the Company, its
officers or directors or any person controlling the Company and (iii) acceptance
of and payment for any of the Shares.

          10.  Termination.  This Agreement shall be subject to termination by
notice given by you to the Company, if (a) after the execution and delivery of
this Agreement and prior to the Closing Date (i) trading generally shall have
been suspended or materially limited on or by, as the case may be, any of the
New York Stock Exchange, the American Stock Exchange, the NASD, the Chicago
Board of Options Exchange, the Chicago Mercantile Exchange or the Chicago Board
of Trade, (ii) trading of any securities of the Company shall have been
suspended on any exchange or in any over-the-counter market, (iii) a general
moratorium on commercial banking activities in New York shall have been declared
by either Federal or New York State authorities or (iv) there shall have
occurred any outbreak or escalation of hostilities or any change in financial
markets or any calamity or crisis that, in your judgment, is material and
adverse and (b) in the case of any of the events specified in clauses 8(a)(i)
through 8(a)(iv), such event, singly or together with any other such event,
makes it, in your judgment, impracticable to market the Shares on the terms and
in the manner contemplated in the Prospectus.

          11.  Effectiveness; Defaulting Underwriters.  This Agreement shall
become effective upon the execution and delivery hereof by the parties hereto.

          If, on the Closing Date or the Option Closing Date, as the case may
be, any one or more of the Underwriters shall fail or refuse to purchase Shares
that it has or they have agreed to purchase hereunder on such date, and the
aggregate number of Shares which such defaulting Underwriter or Underwriters
agreed but failed or refused to purchase is not more than one-tenth of the
aggregate number of the Shares to be purchased on such date, the other
Underwriters shall be obligated severally in the proportions that the number of
Firm Shares set forth opposite their respective names in Schedule II bears to
the aggregate number of Firm Shares set forth opposite the names of all such
non-defaulting Underwriters, or in such other proportions as you may specify, to
purchase the Shares which such defaulting Underwriter or Underwriters agreed but
failed or refused to purchase on such date; provided that in no event shall the
number of Shares that any Underwriter has agreed to purchase pursuant to this
Agreement be increased pursuant to this Section 10 by an amount in excess of
one-ninth of such number of Shares without the written consent of such
Underwriter.  If, on the Closing Date, any Underwriter or Underwriters shall
fail or refuse to purchase Firm Shares and the aggregate number of Firm Shares
with respect to which such default occurs is more than 

                                      -27-
<PAGE>
 
one-tenth of the aggregate number of Firm Shares to be purchased, and
arrangements satisfactory to you, the Company and the Selling Stockholders for
the purchase of such Firm Shares are not made within 36 hours after such
default, this Agreement shall terminate without liability on the part of any 
non-defaulting Underwriter, the Company or the Selling Stockholders. In any such
case either you or the relevant Selling Stockholders shall have the right to
postpone the Closing Date, but in no event for longer than seven days, in order
that the required changes, if any, in the Registration Statement and in the
Prospectus or in any other documents or arrangements may be effected. If, on the
Option Closing Date, any Underwriter or Underwriters shall fail or refuse to
purchase Additional Shares and the aggregate number of Additional Shares with
respect to which such default occurs is more than one-tenth of the aggregate
number of Additional Shares to be purchased, the non-defaulting Underwriters
shall have the option to (i) terminate their obligation hereunder to purchase
Additional Shares or (ii) purchase not less than the number of Additional Shares
that such non-defaulting Underwriters would have been obligated to purchase in
the absence of such default. Any action taken under this paragraph shall not
relieve any defaulting Underwriter from liability in respect of any default of
such Underwriter under this Agreement.

          If this Agreement shall be terminated by the Underwriters, or any of
them, because of any failure or refusal on the part of any Seller to comply with
the terms or to fulfill any of the conditions of this Agreement, or if for any
reason any Seller shall be unable to perform its obligations under this
Agreement, the Sellers will reimburse the Underwriters or such Underwriters as
have so terminated this Agreement with respect to themselves, severally, for all
out-of-pocket expenses (including the fees and disbursements of their counsel)
reasonably incurred by such Underwriters in connection with this Agreement or
the offering contemplated hereunder.

          12.  Counterparts.  This Agreement may be signed in two or more
counterparts, each of which shall be an original, with the same effect as if the
signatures thereto and hereto were upon the same instrument.

          13.  Applicable Law.  This Agreement shall be governed by and
construed in accordance with the internal laws of the State of New York.

          14.  Headings.  The headings of the sections of this Agreement have
been inserted for convenience of reference only and shall not be deemed a part
of this Agreement.

              [THE REMAINDER OF THIS PAGE IS INTENTIONALLY BLANK]

                                      -28-
<PAGE>
 
In witness whereof, the undersigned have signed this Agreement as of the date
first above written:

                              Very truly yours,

                              VERISIGN, INC.



                              By:
                                 ------------------------------------
                                 Name:
                                 Title:



Accepted as of the date hereof

Morgan Stanley & Co. Incorporated
Hambrecht & Quist LLC
Dain Rauscher Wessels
 a division of Dain Rauscher Incorporated
BancBoston Robertson Stephens

Acting severally on behalf
 of themselves and the
 several Underwriters named
 in Schedule I hereto.

By: Morgan Stanley & Co. Incorporated



     By:
        ------------------------------------ 
       Name:
        Title:



[VeriSign Follow-On Underwriting Agreement - Company and Underwriter Sig. Page]
<PAGE>
 
The Selling Stockholders named in Schedule I
hereto that are not Insiders, acting severally


By:
   ------------------------------------
Name:
Title: Attorney-in-fact



The Selling Stockholders named in Schedule I
hereto that are Insiders

By:                                             By:                         
   ----------------------------                    ------------------------- 
Name: Straton Sclavos                           Name: Timothy Tomlinson     
                                                                            
                                                                            
By:                                             By:                         
   ----------------------------                    ------------------------- 
Name: Dana Evan                                 Name: William Chenevich     
                                                                            
                                                                            
By:                                             By:                         
   ----------------------------                    ------------------------- 
Name: D. James Bidzos                           Name: Kevin R. Compton      
                                                                            
                                                                            
By:                                             By:                         
   ----------------------------                    ------------------------- 
Name: Jagtar S. Chaudhry                        Name: David J. Cowan         


By:
   ----------------------------                     
Name: Quentin Gallivan


By:
   ----------------------------                     
Name: Arnold Schaeffer


By:
   ----------------------------                     
Name: Richard A. Yanowitch
                             


  [VeriSign Follow-On Underwriting Agreement - Selling Stockholder Sig. Page]
<PAGE>
 
                                   SCHEDULE I



                                                        Number of
                                                       Firm Shares
        Selling Stockholder                             To Be Sold    
                                                                      
                                                        _________     
                                                                      
                                                        _________     
                                                                      
                                                        _________     
                                                                      
                                                        _________     
                                                                      
                                                    _______________   
                                                                      
                                       Total......      _________     
                                                    ===============   
<PAGE>
 
                                  SCHEDULE II



                                                       Number of
                                                      Firm Shares
        Underwriter                                    To Be Sold   

Morgan Stanley & Co. Incorporated                       _________    
                                                                     
Hambrecht & Quist LLC                                   _________    
                                                                     
Dain Rauscher Wessels                                   _________    
                                                                     
BancBoston Robertson Stephens                           _________    
                                                                     
                                                    _______________  
                                                                       
                     Total.........                     _________    
                                                    ===============   
<PAGE>
 
                                                                       Exhibit A

                           [FORM OF LOCK-UP LETTER]

                                                               December __, 1998


Morgan Stanley & Co. Incorporated
Hambrecht & Quist LLC
Wessels, Arnold & Henderson, L.L.C.
Dain Rauscher Wessels
c/o Morgan Stanley & Co. Incorporated
1585 Broadway
New York, NY  10036

Dear Sirs and Mesdames:

     The undersigned understands that Morgan Stanley & Co. Incorporated ("Morgan
Stanley") proposes to enter into an Underwriting Agreement (the "Underwriting
Agreement") with VeriSign, Inc., a Delaware corporation (the "Company"),
providing for the public offering (the "Public Offering") by the several
Underwriters, including Morgan Stanley (the "Underwriters"), of shares (the
"Shares") of the Common Stock, one-tenth of one cent ($0.001) par value per
share, of the Company (the "Common Stock").

     To induce the Underwriters that may participate in the Public Offering to
continue their efforts in connection with the Public Offering, the undersigned
hereby agrees that, without the prior written consent of Morgan Stanley on
behalf of the Underwriters, it will not, during the period commencing on the
date hereof and ending 180 days after the date of the final prospectus relating
to the Public Offering (the "Prospectus"), (1) offer, pledge, sell, contract to
sell, sell any option or contract to purchase, purchase any option or contract
to sell, grant any option, right or warrant to purchase, lend, or otherwise
transfer or dispose of, directly or indirectly, any shares of Common Stock or
any securities convertible into or exercisable or exchangeable for Common Stock
or (2) enter into any swap or other arrangement that transfers to another, in
whole or in part, any of the economic consequences of ownership of Common Stock,
whether any such transaction described in clause (1) or (2) above is to be
settled by delivery of Common Stock or such other securities, in cash or
otherwise.  The foregoing sentence shall not apply to (a) the sale of any Shares
to the Underwriters pursuant to the Underwriting Agreement or (b) transactions
relating to shares of Common Stock or other securities acquired in open market
transactions after the completion of the Public Offering.  In addition, the
undersigned agrees that, without the prior written consent of Morgan Stanley on
behalf of the Underwriters, it will not, during the period commencing on the
date hereof and ending 180 days after the date of the Prospectus, make any
demand for or exercise any right with respect to, the registration of any shares
of Common Stock or any security convertible into or exercisable or exchangeable
for Common Stock.

     Whether or not the Public Offering actually occurs depends on a number of
factors, including market conditions.  Any Public Offering will only be made
pursuant to an Underwriting Agreement, the terms of which are subject to
negotiation between the Company and the Underwriters.

                                    Very truly yours,


                              ----------------------------------------
                              (Name)


                              ---------------------------------------- 
                              (Address)

<PAGE>
 
                                                                   EXHIBIT 10.30


                            AMENDMENT NUMBER ONE TO
                   MASTER DEVELOPMENT AND LICENSE AGREEMENT


     THIS AMENDMENT NUMBER ONE TO MASTER DEVELOPMENT AND LICENSE AGREEMENT (the
"Amendment") by and between Security Dynamics Technologies, Inc., a Delaware
corporation, together with its Affiliates (collectively, "SDTI") and VeriSign,
Inc., a Delaware corporation ("VeriSign"), is made this __ day of December, 1998
(the "Effective Date") with respect to that certain Master Development and
License Agreement dated September 30, 1997 between SDTI and VeriSign (the
"Master Agreement").


                                   RECITALS

     WHEREAS, pursuant to the Master Agreement, SDTI engaged VeriSign to
customize certain computer software owned by VeriSign which related to digital
certificate authentication and local registration authority (the customized
software was referred to in the Master Agreement and herein as the "Developed
Technology");
 
     WHEREAS, VeriSign granted to SDTI a nonexclusive license under VeriSign's
Intellectual Property Rights in its Pre-Existing Technology (each as defined in
the Master Agreement) to the extent it is incorporated in the Developed
Technology to use, copy, modify and prepare derivative works of the Developed
Technology, and to distribute the Developed Technology to End-Users; and
 
     WHEREAS, SDTI and VeriSign desire to amend the Master Agreement to provide
that: (a) for a period of up to five (5) years from the Effective Date, VeriSign
will appoint SDTI its exclusive licensee for the Developed Technology, pursuant
to SDTI's payment of certain amounts described in this Amendment; and (b) SDTI
will embed in the Developed Technology certain software code owned by VeriSign
in order to ensure that the Developed Technology remains Functionally Compatible
(as defined below) with the VeriSign OnSite Platform (as defined below).


                                   AGREEMENT

     NOW THEREFORE, in reliance on the foregoing Recitals and in consideration
of the mutual consideration recited therein and contained herein, the parties
agree as follows:

                                       1
<PAGE>
 
1)  Defined Terms.  Any capitalized terms used herein without definition shall
    --------------                                                            
    have the meaning ascribed to such terms in the Master Agreement.

2)  The following new defined terms are added to Section 1 of the Master
    Agreement (Definitions):
               -----------

    1.23  "Affiliate" means any entity controlled by, controlling, or under
          common control with, SDTI.

    1.24  "Bundled Products" means a hardware or software product or service
          created by a third party which incorporates the Developed Technology
          or the Products.

    1.25  "Contract Year" means, initially, the 364 consecutive days following
          the Effective Date, and thereafter, each consecutive twelve-month
          period.


    1.26  "Functionally Compatible" means that the Developed Technology and the
          VeriSign OnSite Platform are designed to enable a user of either
          product to switch to the other product while maintaining much of that
          user's application investment in the original product. The parties
          anticipate that this objective will be accomplished primarily by
          providing for certificate lifecycle protocol compatibility for
          applications and toolkits interfacing with the products.

          The term "Functionally Compatible" does not require: (A) that the
          administrative interfaces for the Developed Technology and the
          VeriSign OnSite Platform be identical, nor (B) that the management
          and/or operation of the Developed Technology and the VeriSign OnSite
          Platform be substantially similar.

    1.27  "Net Revenue" means: (i) with respect to each sale or license of
          Developed Technology and Products to any OEM, revenue which is
          recognized by SDTI in accordance with generally accepted accounting
          principles, net of discounts and returns, and (ii) with respect to
          each sale or license of the VeriSign OnSite Service to any New OnSite
          Customer, revenue which is recognized by VeriSign in accordance with
          generally accepted accounting principles, net of discounts and
          returns.

    1.28  "New OnSite Customer" means any third party who purchases or licenses
          the VeriSign OnSite Service subsequent to that party's purchase of
          Products and/or Developed Technology from SDTI.

                                       2
<PAGE>
 
    1.29  "OEM" means any third party engaged in the business of creating and
          selling Bundled Products to End Users under OEM's own trademarks by
          virtue of the authority of SDTI.

    1.30  "Updates" means, collectively, Upgrades, Enhancements, and Error
          Corrections.

    1.31  "VAR" means any third party in the business of reselling or
          distributing the Developed Technology or Products not as part of any
          Bundled Product, whether under its own trademarks or trademarks
          specified by SDTI, by virtue of the authority of SDTI.

    1.32  "VeriSign OnSite Platform" means the public key infrastructure
          platform created by VeriSign and required by End-Users to implement
          the VeriSign OnSite Service, and any successor or replacement
          platforms.

    1.33  "VeriSign OnSite Service" means that digital certificate management
          and issuing service marketed by VeriSign and currently known as
          "OnSite", and any successor or replacement services.


3)  Section 4.2 (Developed Technology) of the Master Agreement is hereby deleted
                 --------------------                                           
    in its entirety and replaced with the following new Section 4.2:

    4.2  Developed Technology.  On the terms and subject to the conditions set
         --------------------                                                 
         forth herein, VeriSign grants to SDTI an exclusive (subject to the
         provisions of Paragraph 5 of Exhibit E of the Master Agreement),
                                      ---------
         perpetual, worldwide license, under VeriSign's Intellectual Property
         Rights in its Pre-Existing Technology to the extent that it is
         incorporated in the Developed Technology to:

               (a)  use, copy, modify, and prepare derivative works of the
                    Developed Technology in Source Code Form and Object Code
                    Form;

               (b)  license, copy and distribute the Developed Technology and
                    Products in Source Code Form and Object Code Form to OEMs,
                    with rights to: (i) modify functions contained in the
                    Developed Technology, (ii) prepare derivative works of the
                    Developed Technology, (iii) incorporate the Developed
                    Technology into OEM's products in order to create Bundled
                    Products, and (iv) sublicense its rights with respect to the
                    Developed Technology in Object Code Form as part of the
                    Bundled Products to OEM's licensees for use only in their
                    own products;

                                       3
<PAGE>
 
               (c)  license, copy and distribute the Developed Technology and
                    Products in Object Code Form to VARs, with rights to further
                    distribute or resell the Products; and

               (d)  copy and distribute the Developed Technology in Source Code
                    Form (solely for deposit into escrow at the request of any
                    End-User) and Object Code Form to End-Users.

    Notwithstanding anything to the contrary contained herein, from time to    
    time VeriSign may develop and sell software modules or other programs      
    which: (1) are part of the Developed Technology, and (2) are required by   
    VeriSign to be distributed in Source Code Form to users.  In such event,   
    the rights granted to SDTI herein shall permit SDTI to copy and distribute 
    such software in Source Code Form to VARs and End-Users.                    

    SDTI acknowledges that it shall retain its exclusive status for any        
    Contract Year only if SDTI elects to prepay the royalties for such Contract 
    Year in accordance with Section 5 of Exhibit E to the Master Agreement.    
                                         ---------                              

    VeriSign acknowledges and agrees that so long as SDTI retains its exclusive 
    status, VeriSign shall have no right to license, sell, market or distribute 
    the Developed Technology to any third party.  Notwithstanding the          
    foregoing, SDTI acknowledges and agrees that during the term of this       
    Agreement, VeriSign may license or distribute to Strategic Partners (as    
    defined below) technology which performs functions substantially similar to 
    the Developed Technology (but which utilizes a code base substantially     
    different from the code base of the Developed Technology) for the purpose  
    of permitting those Strategic Partners to create a certificate issuing and 
    management service substantially similar to the VeriSign OnSite Service or 
    VeriSign's public certificate services (each, a "Similar Service").  For   
    purposes of this paragraph, the term "Strategic Partner" shall mean: (i)   
    any third party located outside of the United States with whom VeriSign    
    contracted to create a Similar Service, or (ii) any third party with whom  
    VeriSign has contracted to create an industry-specific vertical market for 
    a Similar Service, regardless of the geographic location of that entity.    

    During the term of this Agreement, SDTI may not: (i) license the Developed 
    Technology to any third party or use the Developed Technology itself for   
    the purposes of creating and marketing a service similar in purpose to the 
    VeriSign OnSite Service, or (ii) except as expressly permitted herein,     
    perform or permit any sublicensing or other distribution of the Developed  
    Technology in Source Code Form.  SDTI's rights in the Developed Technology 
    licensed hereunder shall be limited to those expressly granted in this     
    Agreement.                                                                  

                                       4
<PAGE>
 
4)  The following new paragraph is inserted at the end of Section 4.3 (Access to
                                                                       ---------
    Technology) of the Master Agreement:
    ----------                          

    During the term of this Agreement, VeriSign shall provide to SDTI the
    technical support and design consulting services set forth on Exhibit H
    attached hereto. SDTI shall incorporate certain portions of the VeriSign
    OnSite Platform into the Developed Technology, as SDTI's product release
    schedule permits, in order to ensure that the Developed Technology is
    Functionally Compatible with the VeriSign OnSite Platform. In addition,
    VeriSign shall ensure that the VeriSign OnSite Platform remains Functionally
    Compatible with the Developed Technology.

5)  Section 4.4 (Trademarks) of the Master Agreement is amended by adding the
                 ----------                                                  
    following new paragraph (d) following existing Section 4.4(c):

    (d)   Notwithstanding anything to the contrary contained herein, VeriSign
        acknowledges that: (i) SDTI shall have the right to market, distribute
        and sell the Developed Technology and Products under its own trademarks,
        and (ii) SDTI may permit OEMs and VARs to market, distribute and sell
        the Developed Technology and Products under such party's trademarks.

6)  The following new Section 6.5 is inserted at the end of Section 6
    (VeriSign's Obligations and Development Undertakings) of the Master
     ---------------------------------------------------
    Agreement:

       6.5  Transfer of Existing OEMs and Prospect List to SDTI.
            ----------------------------------------------------

               (a)  Transfer of Existing OEMs to SDTI.  VeriSign acknowledges
                    ----------------------------------                       
                    that, as of the date hereof, it has licensed the Developed
                    Technology to certain OEMs, including Cisco Systems.  In
                    order to assure that those OEMs receive consistent support
                    and maintenance for the Developed Technology, VeriSign shall
                    use its best efforts to transfer customer support
                    obligations for those customers to SDTI.  To that end,
                    VeriSign shall deliver to SDTI at no charge, within 30 days
                    following the Effective Date, all information currently in
                    VeriSign's possession which SDTI could reasonably be
                    expected to find useful in order to assume customer support
                    for those OEMs, including but not limited to customer
                    contracts, support records and bug tracking databases.
                    Following the Effective Date, VeriSign and SDTI will work
                    together to: (i) inform those OEMs of the transition, and
                    (ii) effect the transition in an orderly fashion, including
                    but not limited to implementation of a process pursuant to
                    which any maintenance and support calls relating to the
                    Developed Technology from those customers who elect to
                    receive support from SDTI that are received by VeriSign are
                    forwarded to SDTI.

                                       5
<PAGE>
 
               (b)  Transfer of VeriSign Prospect List to SDTI.  In furtherance
                    ------------------------------------------                 
                    of the transactions contemplated by this Agreement, within
                    30 days following the Effective Date, VeriSign will transfer
                    to SDTI its prospect list for potential purchasers of the
                    Developed Technology.  VeriSign will provide reasonable
                    assistance to SDTI in connection with the transition of
                    these prospects to SDTI's sales force, including but not
                    limited to assistance with sales calls, and introductions to
                    customer contacts.  Thereafter, VeriSign shall direct any
                    new leads for the Developed Technology to SDTI, and
                    following the Effective Date, the parties will implement a
                    process pursuant to which all such leads are so directed to
                    SDTI's sales force.

7)  Section 9 of the Master Agreement (License Fees; Royalty Payments) is
                                       ------------------------------    
    amended by inserting the following new Section 9.6 after existing Section
    9.5:

    9.6  Prepaid Royalties. SDTI shall prepay royalties as described in
         ------------------    
         Paragraph 4 of Exhibit E hereto in order to maintain its status as
                        ---------
         exclusive distributor of the Developed Technology.

8)  Section 10 (Confidential Information) of the Master Agreement is amended by
                ------------------------                                       
    inserting the following new Section 10.5 after existing Section 10.4:

    10.5 News Releases. Following execution of this Agreement, SDTI and VeriSign
         -------------
    will jointly issue a news release regarding the transactions contemplated in
    this Agreement. Otherwise, no public statements inconsistent with previously
    authorized and released news releases shall be made or released to any
    medium except with the prior approval of the other party, or as required by
    law or governmental regulation.

9)  Exhibit C to the Master Agreement (Statement of Work) is hereby amended by
    ---------                                                                 
    adding to the conclusion thereof the additional text contained in the
    attached Exhibit C.
             --------- 

10) The following new paragraphs 4 though 7 are added to Exhibit E to the
    Master Agreement (License and Royalty Payments):
                      ----------------------------  

         4) License Expansion Fee. Upon execution of this Amendment, SDTI shall
            ---------------------
            pay VeriSign a license expansion fee equal to Five Hundred Thousand
            Dollars ($500,000) in consideration of VeriSign's expansion of
            license rights granted to SDTI pursuant to the Master Agreement.

         5) Royalties on Sales of Products.
            ------------------------------

                                       6
<PAGE>
 
               (a)  Sales to OEMs. During the term of this Agreement, in
                    --------------                                       
                    connection with the sale or license of Products to an OEM,
                    SDTI shall pay VeriSign the following royalties as follows:

                    (i)  Object Code Licenses. With respect to licenses of the
                         --------------------- 
                         Developed Technology in Object Code Form, SDTI will
                         pay VeriSign a royalty equal to:

                         1. zero percent (0%) until such time as SDTI has
                            received Net Revenue equal to Two Million Eight
                            Hundred Thousand Dollars ($2,800,000) from OEMs who
                            have licensed the Developed Technology in Object
                            Code Form; and

                         2. the greater of (A) eighteen percent (18%) of Net
                            Revenue, and (B) eighteen percent (18%) of sixty
                            percent (60%) of RSA's current list price for such a
                            license, after such time as SDTI has received Net
                            Revenue in an amount greater than Two Million Eight
                            Hundred Thousand Dollars ($2,800,000) from OEMs who
                            have licensed the Developed Technology in Object
                            Code Form; and

                         (ii) Source Code Licenses. With respect to licenses of
                              ---------------------
                         the Developed Technology in Source Code Form, SDTI will
                         pay VeriSign a royalty equal to Fifty Percent (50%) of
                         Net Revenue derived from the sale or license of
                         Developed Technology in Source Code Form to the OEM;
                         provided however, that SDTI will also pay VeriSign the
                         ----------------
                         royalty specified in section 4(a)(i) above with respect
                         to any sales or licenses of Developed Technology in
                         Object Code Form to such OEM. Amounts due to VeriSign
                         pursuant to each sale or license described in this
                         paragraph 4(a)(ii) shall equal not less than Twenty-
                         five Thousand Dollars ($25,000).

                         Notwithstanding the foregoing, in the event that any
                         OEM desires to receive a copy of the Products in Source
                         Code Form to place in escrow pursuant to an executed
                         Source Code Escrow Agreement in effect between SDTI and
                         that OEM, then SDTI shall not be obligated to pay
                         VeriSign any royalties in connection with that copy of
                         the Product placed in escrow; provided that in the
                                                       --------
                         event that such copy of the Product is released from
                         escrow following the occurrence of any release
                         condition specified in the escrow agreement, then SDTI
                         shall pay VeriSign the royalties set forth in this
                         paragraph 4(a)(ii).

                                       7
<PAGE>
 
               (b)  Sales to VARs. During the term of this Agreement, in
                    --------------
                    connection with the sale or license of Products to a VAR,
                    SDTI shall not be obligated to pay VeriSign any royalties.

               SDTI shall be obligated to pay the royalties set forth in this
               Paragraph 4 only after SDTI has recouped in full all amounts
               prepaid by SDTI pursuant to paragraph 6 of this Exhibit E. In
               order to permit VeriSign to calculate royalties due to it
               pursuant to the terms of Paragraph 4(a)(i) above, SDTI shall
               deliver to VeriSign from time to time its current published price
               list for the Developed Technology.

         6) Royalty Prepayments. SDTI will prepay royalties in the following
            ------------------
            amounts in order to maintain exclusive rights to distribute the
            Developed Technology during up to the first five Contract Years of
            the Agreement:

               (a)  In order to maintain its exclusive status in the First
                    Contract Year, SDTI will pay VeriSign an amount equal to One
                    Million One Hundred and Thirty Five Thousand Dollars
                    ($1,135,000) (the "First Royalty Prepayment"), payable as
                    follows:

                    (i)   Subject to the terms of Section 6(f) below, SDTI will
                          pay VeriSign Twenty-two percent (22%) of the First
                          Royalty Prepayment within forty-five (45) days
                          following the commencement of the first Contract Year;

                    (ii)  Subject to the terms of Section 6(f) below, SDTI will
                          pay VeriSign Twenty-four percent (24%) of the First
                          Royalty Prepayment within forty-five (45) days
                          following the commencement of the second quarter of
                          the first Contract Year;

                    (iii) Subject to the terms of Section 6(f) below, SDTI will
                          pay VeriSign Twenty-six percent (26%) of the First
                          Royalty Prepayment within forty-five (45) days
                          following the commencement of the third quarter of the
                          first Contract Year; and

                    (iv)  Subject to the terms of Section 6(f) below, SDTI will
                          pay VeriSign twenty-eight percent (28%) of the First
                          Royalty Prepayment within forty-five (45) days
                          following the commencement of the fourth quarter of
                          the first Contract Year.

               (b)  In order to maintain its exclusive status in the second
                    Contract Year, SDTI will pay VeriSign an amount equal to Two
                    Million Two Hundred Fifty Thousand Dollars ($2,250,000) (the
                    "Second Royalty Prepayment"), payable quarterly as follows:

                                       8
<PAGE>
 
                    (i)   Subject to the terms of Section 6(f) below, SDTI will
                          pay VeriSign Twenty-two percent (22%) of the Second
                          Royalty Prepayment within forty-five (45) days
                          following the commencement of the second Contract
                          Year;

                    (ii)  Subject to the terms of Section 6(f) below, SDTI will
                          pay VeriSign Twenty-four percent (24%) of the Second
                          Royalty Prepayment within forty-five (45) days
                          following the commencement of the second quarter of
                          the second Contract Year;

                    (iii) Subject to the terms of Section 6(f) below, SDTI will
                          pay VeriSign Twenty-six percent (26%) of the Second
                          Royalty Prepayment within forty-five (45) days
                          following the commencement of the third quarter of the
                          second Contract Year; and

                    (iv)  Subject to the terms of Section 6(f) below, SDTI will
                          pay VeriSign twenty-eight percent (28%) of the Second
                          Royalty Prepayment within forty-five (45) days
                          following the commencement of the fourth quarter of
                          the second Contract Year.

               (c)  In order to maintain its exclusive status in the third
                    Contract Year, SDTI will pay VeriSign an amount equal to
                    Three Million Dollars ($3,000,000) (the "Third Royalty
                    Prepayment"), payable quarterly as follows:

                    (i)   Subject to the terms of Section 6(f) below, SDTI will
                          pay VeriSign Twenty-two percent (22%) of the Third
                          Royalty Prepayment within forty-five (45) days
                          following the commencement of the third Contract Year;

                    (ii)  Subject to the terms of Section 6(f) below, SDTI will
                          pay VeriSign Twenty-four percent (24%) of the Third
                          Royalty Prepayment within forty-five (45) days
                          following the commencement of the second quarter of
                          the third Contract Year;

                    (iii) Subject to the terms of Section 6(f) below, SDTI will
                          pay VeriSign Twenty-six percent (26%) of the Third
                          Royalty Prepayment within forty-five (45) days
                          following the commencement of the third quarter of the
                          third Contract Year; and

                    (iv)  Subject to the terms of Section 6(f) below, SDTI will
                          pay VeriSign twenty-eight percent (28%) of the Third
                          Royalty 

                                       9
<PAGE>
 
                          Prepayment within forty-five (45) days following the
                          commencement of the fourth quarter of the third
                          Contract Year.

               (d)  In order to maintain its exclusive status in the fourth
                    Contract Year, SDTI will pay VeriSign an amount equal to
                    Four Million Dollars ($4,000,000) (the "Fourth Royalty
                    Prepayment"), payable quarterly as follows:

                    (i)   Subject to the terms of Section 6(f) below, SDTI will
                          pay VeriSign Twenty-two percent (22%) of the Fourth
                          Royalty Prepayment within forty-five (45) days
                          following the commencement of the fourth Contract
                          Year;

                    (ii)  Subject to the terms of Section 6(f) below, SDTI will
                          pay VeriSign Twenty-four percent (24%) of the Fourth
                          Royalty Prepayment within forty-five (45) days
                          following the commencement of the second quarter of
                          the fourth Contract Year;

                    (iii) Subject to the terms of Section 6(f) below, SDTI will
                          pay VeriSign Twenty-six percent (26%) of the Fourth
                          Royalty Prepayment within forty-five (45) days
                          following the commencement of the third quarter of the
                          fourth Contract Year; and

                    (iv)  Subject to the terms of Section 6(f) below, SDTI will
                          pay VeriSign twenty-eight percent (28%) of the Fourth
                          Royalty Prepayment within forty-five (45) days
                          following the commencement of the fourth quarter of
                          the fourth Contract Year.


               (e)  In order to maintain its exclusive status in the fifth
                    Contract Year, SDTI will pay VeriSign an amount equal to
                    Four Million Dollars ($4,000,000) (the "Fifth Royalty
                    Prepayment"), payable quarterly as follows:

                    (i)   Subject to the terms of Section 6(f) below, SDTI will
                          pay VeriSign Twenty-two percent (22%) of the Fifth
                          Royalty Prepayment within forty-five (45) days
                          following the commencement of the fifth Contract Year;

                    (ii)  Subject to the terms of Section 6(f) below, SDTI will
                          pay VeriSign Twenty-four percent (24%) of the Fifth
                          Royalty Prepayment within forty-five (45) days
                          following the commencement of the second quarter of
                          the fifth Contract Year;

                                       10
<PAGE>
 
                    (iii) Subject to the terms of Section 6(f) below, SDTI will
                          pay VeriSign Twenty-six percent (26%) of the Fifth
                          Royalty Prepayment within forty-five (45) days
                          following the commencement of the third quarter of the
                          fifth Contract Year; and

                    (iv)  Subject to the terms of Section 6(f) below, SDTI will
                          pay VeriSign twenty-eight percent (28%) of the Fifth
                          Royalty Prepayment within forty-five (45) days
                          following the commencement of the fourth quarter of
                          the fifth Contract Year.

               (f)  All royalties (including prepaid royalties) due from SDTI
                    shall be nonrefundable, and prepaid royalties shall be
                    payable by SDTI net 30 days from the date of any invoice
                    from VeriSign.  In no event shall SDTI be in breach
                    hereunder for failure to pay any royalties not invoiced by
                    VeriSign.  Royalties prepaid in each Contract Year are
                    cumulative and do not expire; e.g. in the event that
                    royalties which would be due to VeriSign in any Contract
                    Year are less than royalties prepaid by SDTI to date, then
                    SDTI shall receive credit for all unused royalties prepaid
                    to date.  For example, if at the start of the third Contract
                    Year, SDTI has prepaid royalties to VeriSign in the amount
                    of $3,350,000, but royalties otherwise due to VeriSign from
                    SDTI's sale of Products during the first Contract Year and
                    second Contract Year equal only $1,000,000, then SDTI is
                    credited with an additional $2,350,000 of prepaid royalties
                    in addition to royalties prepaid by SDTI for the third
                    Contract Year.

               (g)  Notwithstanding the foregoing, SDTI may at its sole
                    discretion, elect not to maintain its exclusivity at any
                    time.  In the event that SDTI elects not to maintain its
                    exclusivity, SDTI will: (i) inform VeriSign in writing of
                    its decision at least ninety (90) days prior to the end of
                    any Contract Year; (ii) if SDTI so elects not to maintain
                    exclusivity during the first three Contract Years, deliver
                    to VeriSign, within thirty (30) days following delivery of
                    such notice, an amount equal to the royalty prepayment which
                    would otherwise be due for the first two quarters of the
                    following Contract Year; (iii) if SDTI so elects not to
                    maintain exclusivity during the fourth Contract Year,
                    deliver to VeriSign, within thirty (30) days following
                    delivery of such notice, an amount equal to the royalty
                    prepayment which would otherwise be due for the first
                    quarter of the fifth Contract Year; and (iv) have no further
                    obligation to pay the remaining royalty prepayments
                    described in this paragraph; provided however, that any
                                                 ----------------          
                    payments remaining for the Contract Year in which the
                    election not to maintain exclusivity is made must be paid on
                    the schedule set forth in this Section 6.  In the event SDTI
                    elects not 

                                       11
<PAGE>
 
                    to maintain its exclusivity during the fifth Contract Year,
                    SDTI will not owe any additional royalty prepayments to
                    VeriSign.

               (h)  Upon expiration of the fifth Contract Year, the license
                    granted herein shall be nonexclusive, unless otherwise
                    agreed in writing by the parties.

               7.  Sale of the VeriSign OnSite Service. During the term of this
                   -----------------------------------
               Agreement, VeriSign shall pay SDTI a bounty equal to Eight
               Percent (8%) of Net Revenue received by VeriSign by each New
               OnSite Customer during that customer's first year of using the
               VeriSign OnSite Service.  VeriSign shall deliver to SDTI amounts
               due to SDTI hereunder within thirty days following the end of
               each calendar quarter, together with a report including
               sufficient information to enable SDTI to calculate amounts due to
               SDTI during such prior calendar quarter.  Such report shall
               include the name of the New OnSite Customer, the first year
               revenue recognized by VeriSign from that New OnSite Customer, and
               shall be deemed to be Confidential Information.

               Furthermore, VeriSign shall keep all proper records and books of
               account and proper entries therein relating to its sale of the
               VeriSign OnSite Service to New OnSite Customers. On no less than
               30 days' prior written notice and no more than once annually,
               SDTI may request that an independent certified public accountant
               audit the applicable records during regular business hours at
               VeriSign's offices to verify statements rendered hereunder. SDTI
               shall bear the expenses of any such audit; provided that if such
               audit reveals that bounties paid by VeriSign for any period are
               less than 95% of what should have been paid by VeriSign, on
               SDTI's request, VeriSign shall pay the reasonable costs of such
               audit in addition to royalties then due and owing to SDTI.

11)  Amount Due Under Statement of Work.  Pursuant to the original statement of
     ----------------------------------
     work set forth as Exhibit C to the Agreement, SDTI agreed to pay VeriSign
     an amount equal to Three Hundred Sixty Thousand Dollars ($360,000) (the
     "Final Milestone Payment") upon completion of the final milestone of work
     due from VeriSign. As a result of reprioritization of work that SDTI has
     requested that VeriSign complete, SDTI agrees to pay VeriSign the Final
     Milestone Payment upon occurrence of Release 1 as set forth in the revised
     Statement of Work attached hereto as Exhibit C. Release 1 is currently
                                          ---------  
     targeted to occur on January 28, 1999.

12)  No Conflict with Noncompetition Agreement.  Subject to the terms of Section
     -----------------------------------------
     4.2 hereof, VeriSign acknowledges and agrees that the arrangements
     contemplated by this 

                                       12
<PAGE>
 
     Amendment, and SDTI's performance of its obligations hereunder, do not
     conflict with the noncompetition obligations of SDTI set forth in Paragraph
     2.1 of the Non-Compete and Non-Solicitation Agreement dated April 1995 in
     effect between VeriSign and SDTI's subsidiary, RSA Data Security, Inc.
     ("RSA").

13)  Execution of RSA Amendment. Simultaneously herewith, RSA and VeriSign are
     --------------------------
     executing Amendment Number Two to BSAFE/TIPEM Master License Agreement
     dated April 18, 1995 (the "RSA Amendment"). The parties acknowledge and
     agree that execution of the RSA Amendment is a condition to the
     effectiveness of this Amendment, and if either party fails to execute the
     RSA Amendment, then this Amendment is void and of no force and effect.

14)  Counterparts.  This Amendment may be executed in counterparts, each of
     ------------
     which shall be an original and together which shall constitute one and the
     same instrument.

15)  Effect of Amendment.  This Amendment amends the Master Agreement as of the
     -------------------
     Effective Date, and except as amended hereby, the Master Agreement shall
     continue in full force and effect.

IN WITNESS WHEREOF, the parties have executed this Amendment Number One as of
the date first above written.


VERISIGN, INC.                            SECURITY DYNAMICS TECHNOLOGIES, 
                                          INC.

By:  /s/ Stratton Sclavos                      By:  /s/ Albert E. Sisto
   ----------------------                         ---------------------

Title:   President and CEO                     Title:  Chief Operating Officer
      --------------------                           -------------------------  
                                                                                

                                       13
<PAGE>
 
                                  EXHIBIT "C"
                               STATEMENT OF WORK

SCOPE OF ENGINEERING SUPPORT FOR RSA LICENSE OF OEM PRODUCT
- -----------------------------------------------------------

This document is the fifth draft of the proposed scope of VeriSign Engineering
Support that will be provided as part of the RSA contract to license the
VeriSign OEM product.

1.   MAINTENANCE
     -----------

VeriSign will provide fixes to bugs reported by RSA.  Bug fixes will normally be
distributed in the form of periodic maintenance releases, or in the case of
severe bugs patches will be supplied.

2.   TECHNICAL SUPPORT
     -----------------

Technical support will be provided to RSA to assist in problem diagnosis and
resolution.  This support will be provided to RSA Engineering, and will not be
provided directly to RSA customers.

3.   DESIGN CONSULTING
     -----------------

Design consulting services will be provided to RSA to assist RSA in developing
enhancements and modifications to the OEM product.  This is expected to be in
the form of responding to questions about the internals of the OEM product, and
providing advice about how to best implement a new feature or modification.

Two areas where VeriSign anticipates that design consulting will be required are
in the areas of key management and support for hardware signers.

The design consulting support will be limited to 1 man month of effort.

4.   FEATURE ENHANCEMENTS
     --------------------

RSA has identified a number of additional features that are required, and has
requested that they are delivered in four releases.  These features will be
delivered on both the Solaris and NT platforms.

RELEASE 1
- ---------

Release 1 will be an intermediate development release and will not have the same
level of testing performed on it as other releases.  Integration and QA time
will be limited to 5 days in order to have minimal impact on the ship dates of
the later releases.

4.1  CREATE A HOME PAGE AT THE SUBSCRIBER WEB SERVER THAT LINKS TO EACH
     JURISDICTION'S USER SERVICES PAGE.

A page will be created that contains a link to each jurisdiction's user services
page.

4.2  DUAL KEY SUPPORT

A form of dual key support will be implemented according to the specification
that SDI supplied to VeriSign.  The implementation of this requirement will
allow the user to select the type of certificate (signing, encryption or both
signing and encryption) from the enrollment form.  If two certificates are
required, two separate enrollments will have to be done.  In addition to
providing the capability to request 

                                       14
<PAGE>
 
and deliver certificates that have the key usage se in this way, modifications
will be made to allow multiple certificates for the same DN but with different
key usage.

4.3  FURTHER AUTOMATION OF INSTALLATION

Currently, the Master Encryption Key and the access control signers must be
created by the system administrator after installation.  Support will be
provided to move these tasks to installation.  Currently, the Web UI passes
certain parameters to the CGI programs that perform the processing required.
Instead of this, the installation process that RSA will write will capture the
required input and pass it to the CGI programs.  It is not expected that any
change of functionality will be required of the OEM product to support this
change, and it is assumed that the installation process will start the query
manager before creating the access control signers.  RSA will be performing this
task.

RELEASE 2
- ---------

4.4  REMOVE THE REQUIREMENT TO RESTART THE SIGNING SERVER AFTER THE CREATION OF
     NEW SIGNERS

Currently after signer has been added using the signer wizard, the signing
server must be restated manually so that the new signer can be loaded in to the
signing server.  The need to perform this manual step will be eliminated.
Instead, the signer wizard will send a message to the signing server to that
will cause it to load the new signer automatically.

4.5  USE ONE LINK FOR CERTIFICATE RETRIEVAL

Currently, there are separate links for certificate retrieval, one for each
browser type.  A change will be implemented such that there is one link that
will work for both the Netscape and the IE browsers.

4.6  IMPORT SIGNER FUNCTION

Currently the PKCS10 Certificate Signing Request is generated as a file, and the
user has to retrieve it from the file system.  Instead of this, an option from
the signer management function will be added that displays the PKCS10 as a
BASE64 encoded string that can be easily copied from the page.

RELEASE 3
- ---------

4.7  INTERNATIONAL SUPPORT

Currently, text that is present in the Web pages of the user interface and the
messages stored in the logging server can be localized, but entry fields do not
support international character sets.  Additional support will be implemented to
allow international character sets to be used in the majority of entry fields.

This support will be the same as tat implemented in VeriSign's core software,
briefly described as follows.  Each Web page of the UI can have a new name value
pair added that defines that encoding scheme to be 7 bit ASCII, 8 bit or multi-
byte.  Sophia uses this value to then translate the encoding scheme into UTF8
using the support that is in Solaris 2.6 (which is a pre-requisite).  The UTF8
encoded data is then used by the backend, and data is stored in the database in
the UTF8 format.  Although the CA software does have the capability of putting
the UTF8 representation of the international character set into a certificate,
this is not a practice that VeriSign currently follows because many applications
that use certificates to do yet have the support to deal with this.

VeriSign does not currently have an implementation on NT, and this will be
created as part of this task in a manner as close to the above implementation as
possible.  Further, it is assumed that the Progress database is able to handle
UTF8, and if work has to be done that is specific to the use of Progress that is
not included 

                                       15
<PAGE>
 
within the scope of work.

RELEASE 4
- ---------

4.8  ADD CF/LF AS LINE TERMINATORS TO ALL THE INSTALLED TEXT FILES NO NT.

CR/LF will be added as line terminators to the installed text files on NT.

4.9  EXPORT SIGNER FUNCTION

A new function will be added that is the inverse of the Import Signer function.
It will provide the capability to sign a CSR of a signer that is resident in
another OEM CA server.  In this way, a hierarchy can be created with the other
CA subordinate to the OEM CA that performs this new function.  This function
will allow the import of a CSR, will be able to sign the CSR and will be able to
export the signed CA certificate.

4.10 PROVIDE SUPPORT FOR THE CRS PROTOCOL

Support will be implemented for the CRS protocol so that the OEM CA can provide
services supported by this protocol.  These services include enrollment, pickup,
and revocation.

                                       16
<PAGE>
 
4.11 CERTIFICATE VALIDATION MODULE

This is a standalone module that plugs into a Netscape or IIS Web server and
performs CRL retrieval and certificate validation.  Currently, it works with the
VeriSign Onsite 4.0 service.  This module will be made to work with the OEM CA.
That is, the certificate validation module will be able to download CRLs from
the OEM CA in the same way that it does today from the VeriSign Onsite service.

4.12 API FOR AUTOMATED AUTHENTICATION

An API will be developed that will provide the capability to be able to
interfere with a user written function that will provide automated approval of a
certificate request.  The capability that will be provided will be functionally
similar to that which is provided by the Onsite auto admin toolkit.  However,
the implementation will be different because there is no need to distribute the
functionality to a front end RA as is done in Onsite.  Instead, the API that
currently exists in the auto admin toolkit will be implemented in the CA server
so that the user does not have to set up the auto admin toolkit which is
designed for use in a service environment.

4.13 AUTOMATED CERTIFICATE RENEWAL FEATURES

In Onsite 4.0, a number of features for automated certificate have been added.
These features will be added to the OEM CA product.

4.14 ADD DATABASE PURGE CAPABILITY.

A database purge capability will be created so that old entries can be purged
from database tables.  A UI will be provided that requests the system
administrator to provide a date prior to which all entries will be purged.

RESOURCE ASSUMPTIONS
- --------------------

VeriSign will commit resources as follows:

1/1/99 to 4/22/99  - 4 Engineers

4/23/99 to 12/31/99  - 3 Engineers

It is assumed that the design consulting is evenly distributed throughout the
year.  If heavy consulting is needed in a particular period, this may impact the
release schedule, and VeriSign will inform RSA at the time of the request for
consulting.

                                       17
<PAGE>
 
SCHEDULE FOR RELEASES
- ---------------------

The target dates for the release are as follows:

Release 1    1/28/99
Release 2    3/4/99
Release 3    4/23/99
Release 4    9/28/99

5.   OPEN ISSUES
     -----------

RSA has expressed an interest in being able to have the Application Integration
Toolkit included in the scope of this agreement.  The licensing issues
associated with this are currently being researched.

                                       18
<PAGE>
 
                                   Exhibit H
                                   ---------
                               VeriSign Support
                               ----------------


During the term of this Agreement, VeriSign shall provide to SDTI person-power
equivalent to up to three persons dedicated to maintenance, technical support,
design consulting, compatibility, and enhancement of the Developed Technology.

In the first Contract Year, the specific named set of deliverables for the
activities specified above are outlined in Exhibit C (Statement of Work), and
any VeriSign support efforts will be directed toward fulfilling those
deliverables.   In subsequent years and at least annually, VeriSign and SDI will
meet to determine the allocation of person-power to the categories specified
above. The parties acknowledge and agree that the primary purpose of these
ongoing activities is for maintenance and support of the Developed Technology
and to ensure that the Developed Technology is Functionally Compatible with the
VeriSign OnSite Platform.

In order to ensure that the products are Functionally Compatible, VeriSign shall
deliver to SDTI updates for the VeriSign OnSite Platform as required by SDTI at
no cost.

After completing necessary maintenance and technical support for SDTI, remaining
person-power will be applied to design consulting and enhancement activity as
determined at the meeting discussed above.

                                       19

<PAGE>
 
                                                                   EXHIBIT 10.31

                            AMENDMENT NUMBER TWO TO
                   BSAFE/TIPEM OEM MASTER LICENSE AGREEMENT


     THIS AMENDMENT NUMBER TWO TO BSAFE/TIPEM OEM MASTER LICENSE AGREEMENT (the
"Amendment") by and between RSA Data Security, Inc., a Delaware corporation
("RSA") and VeriSign, Inc., a Delaware corporation ("VeriSign"), is made this __
day of December, 1998 (the "Effective Date") with respect to that certain
BSAFE/TIPEM OEM Master License Agreement dated April 18, 1995 between RSA and
VeriSign, as amended by Amendment Number One ("Amendment Number One") to
BSAFE/TIPEM OEM Master License Agreement between RSA and VeriSign dated May 1996
(as amended from time to time, the "Master Agreement").


                                   RECITALS

     WHEREAS, pursuant to the Master Agreement, RSA licensed to VeriSign the
cryptography toolkits known as BSAFE and TIPEM, and RSA agreed to incorporate
the VeriSign Root Key (as defined in Amendment Number One) into products
manufactured by third parties that include RSA products which process
certificates ("Certificate Products");
 
     WHEREAS, RSA and VeriSign desire to amend the Master Agreement to provide
that: (a) VeriSign will subscribe to RSA's maintenance program , and (b) RSA
will have the right to request that root keys other than VeriSign's be included
in certain Certificate Products (as defined herein), all on the terms described
herein;  and
 
     WHEREAS, each party acknowledges that execution of this Amendment is in the
best interest of such party.


                                   AGREEMENT

     NOW THEREFORE, in reliance on the foregoing Recitals and in consideration
of the mutual consideration recited therein and contained herein, the parties
agree as follows:

1)   Defined Terms.  Any capitalized terms used herein without definition shall
     --------------                                                            
     have the meaning ascribed to such terms in the Master Agreement.

2)   RSA Maintenance Plan; Delivery of Updates.
     ------------------------------------------

                                       1
<PAGE>
 
     a)  RSA Maintenance Plan.  Not later than June 30, 1999, retroactive to the
         --------------------                                                  
         Effective Date of this Amendment, VeriSign will execute RSA's support
         and maintenance agreement attached hereto as Exhibit A (the "Support
                                                      ---------              
         Agreement"). For so long as VeriSign desires to receive New Releases
         and New Versions of the Licensed Software, VeriSign will pay RSA yearly
         maintenance fees equal to fifty percent (50%) of RSA's standard
         published maintenance fees.

     b)  Amendment of Section 4 of Master Agreement.   In connection with OEM's
         ------------------------------------------                            
         execution of the Support Agreement, Section 4 of the Master Agreement
         (Support and Maintenance) is deleted in its entirety and is replaced 
          -----------------------         
         with the following sentence:

         In order to receive maintenance and support for the Licensed
         Technology, VeriSign shall execute the Support Agreement attached
         hereto as Exhibit A on or before June 30, 1999.
                   ---------

     c)  Delivery of BSAFE Crypto-C v.4.0.  The parties acknowledge and agree 
         --------------------------------       
         that, on December 7, 1998, RSA delivered to VeriSign a copy of BSAFE
         Crypto-C v.4.0 in Source Code Form in reliance on VeriSign's
         representation that it intended to execute this Amendment, the Support
         Agreement, and the SDTI OEM Amendment (as defined in Paragraph 5
         below). VeriSign shall execute the Support Agreement on or before June
         30, 1999, retroactive to the Effective Date of this Amendment.
         
3)  VeriSign Root Key.  Paragraph 6 of Amendment No. 1 is hereby amended by
    -----------------                                                     
    adding the following new subparagraph 6.9 after existing subparagraph 6.8:

     6.9  Notwithstanding anything to the contrary set forth in this Amendment,
     ---                                                                        
          VeriSign acknowledges and agrees that from time to time, RSA's
          customers may request that RSA include a root key in addition to the
          VeriSign Root Key (an "Alternative Root Key") in a Certificate
          Product. RSA may include only an Alternative Root Key in cases where
          it is not technically feasible to incorporate more than one root key
          in any Certificate Product. If any customer so requests the inclusion
          of an Alternative Root Key, RSA will deliver to VeriSign in writing a
          request for VeriSign's consent to such inclusion of the Alternative
          Root Key, and VeriSign shall not unreasonably withhold its consent. In
          the event that VeriSign does not unequivocally grant or deny such
          request within twenty-one (21) days following VeriSign's receipt of
          such request, then VeriSign's consent shall be deemed to be given on
          the twenty-second day following such request, and RSA shall have the
          right to include the Alternative Root Key in the Certificate Product
          specified in the notice.

                                       2
<PAGE>
 
4)  Notices.  Section 9.7 of the Master Agreement (Notices) is hereby deleted in
    --------                                       -------                      
    its entirety, and the following new section 9.7 shall be substituted in its
    place:

          9.7  Notices. Any notices required or permitted to be given pursuant
               -------- 
               to the Master Agreement shall be in writing, and may be
               personally delivered, telecopied (with confirmation by recognized
               overnight courier), or sent by recognized overnight courier to
               the following addresses, or to such other address as may be
               specified from time to time by notice in writing. Any such notice
               shall be deemed to have been given when received.

               To VeriSign:  VeriSign, Inc.
                             1390 Shorebird Avenue
                             Mountain View, CA   94043
                             Attention:  Chief Financial Officer
                             Fax:   (650) 961-8853

               With a copy to:  Fenwick & West
                             2 Palo Alto Square
                             Palo Alto, CA   94306
                             Attention:  Robert Dellenbach, Esq.
                             Fax:  (650) 494-1417

               To RSA:  RSA Data Security, Inc.
                             2955 Campus Drive, Suite 400
                             San Mateo, CA  94403
                             Attention: Vice President, Business Development
                             Fax:  (650) 295-7704

               With a copy to:  Security Dynamics Technologies, Inc.
                                36 Crosby Drive
                                Bedford, MA   01730
                                Attention:  Chief Operating Officer
                                Fax:  (781) 301-5420

               With a copy to:  Security Dynamics Technologies, Inc.
                                36 Crosby Drive
                                Bedford, MA   01730
                                Attention:  General Counsel
                                Fax: (781) 301-5420


5)  Execution of SDTI OEM Amendment. Simultaneously herewith, RSA's parent,
- ------------------------------------                                       
    Security Dynamics Technologies, Inc. ("SDTI") and VeriSign are executing an
    amendment to the Master Development and License Agreement dated September
    30,
  
                                       3
<PAGE>
 
  1997 by and between SDTI and VeriSign (the "SDTI OEM Amendment"), pursuant to
  which VeriSign will appoint SDTI, together with its affiliates, VeriSign's
  exclusive OEM distributor of the Developed Technology (as that term is defined
  in the SDTI OEM Amendment).  The parties acknowledge and agree that execution
  of the SDTI OEM Amendment is a condition to the effectiveness of this
  Amendment, and if either party fails to execute the SDTI OEM Amendment, then
  this Amendment is void and of no force and effect.

6)  Counterparts.  This Amendment may be executed in counterparts, each of which
    -------------                                                               
    shall be an original and together which shall constitute one and the same
    instrument.

7)  Effect of Amendment.  This Amendment amends the Master Agreement as of the
    -------------------                                                       
    Effective Date, and except as amended hereby, the Master Agreement shall
    continue in full force and effect. Notwithstanding the foregoing, the
    parties acknowledge and agree that certain terms contained in the Master
    Agreement are unclear in certain respects, given the growth of the parties'
    respective businesses.. Both parties acknowledge their desire to resolve any
    contractual ambiguities promptly following the Effective Date. Therefore,
    without prejudice to any rights which either party may have, following the
    Effective Date, the parties shall work diligently to resolve these matters,
    and each party agrees to amend the Master Agreement if necessary to clarify
    each party's rights under the Master Agreement.

IN WITNESS WHEREOF, the parties have executed this Amendment as of the date
first above written.

VERISIGN, INC.                        RSA DATA SECURITY, INC.

By:    /s/ Stratton Sclavos           By:   /s/ Albert E. Sisto
    -----------------------               -------------------------------

Title:    President and CEO           Title:    Chief Operating Officer
       --------------------           -----------------------------------

                                       4
<PAGE>
 
                                  EXHIBIT "A"

This SUPPORT AGREEMENT ("Support Agreement"), effective as of the later date of
execution ("Effective Date"), is entered into by and between RSA Data Security,
Inc., a Delaware corporation ("RSA"), having a principal address at 2955 Campus
Drive, Suite 400, San Mateo, CA 94403-2507, and:

ENTERPRISE NAME ("YOU"):_______________________________________________________

JURISDICTION OF INCORPORATION:_________________________________________________

STREET ADDRESS:________________________________________________________________

CITY:_________________________         STATE & ZIP CODE:_______________________

ENTERPRISE LEGAL CONTACT (NAME & TITLE):_______________________________________

MAINTENANCE AND SUPPORT PROGRAM ELECTED:  STANDARD [   ]    PREMIER [   ]

INITIAL ANNUAL SUPPORT FEE:  $_____________/year

                                1.  DEFINITIONS

All capitalized terms used and not defined herein shall have the meanings set
forth in the License Agreement or the following meanings:

1.1  "FIXES" means any error corrections, fixes, patches or other software
provided to You as a result of RSA's support services.

1.2  "LICENSE AGREEMENT" means that certain License Agreement between RSA and
You dated ________________, ______.

1.3  "RSA SOFTWARE" means RSA proprietary software identified as RSA Software on
page 1 of the License Agreement.

                     2.  MAINTENANCE AND SUPPORT SERVICES

2.1  GENERAL.  This Support Agreement sets forth the terms under which RSA will
     -------                                                                   
provide support to You for the RSA Software licensed to You for the Licensed
Products, as set forth under the unamended License Agreement.  The use of and
license to any Fixes and Updates provided to You hereunder shall be governed by
the terms of the License Agreement.

2.2  SUPPORT AND MAINTENANCE.  RSA agrees to provide the maintenance and support
     -----------------------                                                    
specified in this Support Agreement and You agree to pay RSA's then-current
annual support fee ("Support Fee").

2.3  SUPPORT PROVIDED BY RSA.  For the annual period commencing on the Effective
     -----------------------                                                    
Date hereof, and for future annual periods for which You have paid the Support
Fee, RSA will provide You with the following services in accordance with the
program You have elected above:

     2.3.1  SUPPORT UNDER STANDARD PROGRAM.  In the event that You have elected
            ------------------------------                                     
     the Standard program, RSA will provide telephone support to You from 6:00
     a.m. to 5:00 p.m. (Pacific Time), Monday through Friday, excluding locally
     observed holidays.  Upon the receipt of a request for support services, RSA
     shall respond within one (1) business day from the time of the request.
     

                                       5
<PAGE>
 
     RSA shall provide the support specified in this Section to Your employees
     responsible for developing and maintaining the Licensed Products licensed
     under the License Agreement and providing support to End User Customers
     thereof.  No more than two (2) of Your employees may obtain such support
     from RSA at any one time.  Upon RSA's request, You will provide a list with
     the names of the employees designated to receive support from RSA.  You may
     change the names on the list at any time by providing written notice to
     RSA.  Upon Your request, RSA may provide on-site support reasonably
     determined to be necessary by RSA at Your location specified on page 1
     hereof.

     2.3.2  SUPPORT UNDER PREMIER PROGRAM.  In the event that You have elected
            -----------------------------                                     
     the Premier program, RSA will provide telephone support to You 24 hours a
     day, 7 days per week.  Upon the receipt for a request for support services,
     RSA shall respond within two hours from the time of the request.  RSA shall
     provide the support specified in this Section to Your employees responsible
     for developing and maintaining the Licensed Products licensed under the
     License Agreement and providing support to End User Customers thereof.  No
     more than five (5) of Your employees may obtain such support from RSA at
     any one time.  Upon RSA's request, You will provide a list with the names
     of the employees designated to receive support from RSA.  You may change
     the names on the list at any time by providing written notice to RSA.  Upon
     Your request, RSA may provide on-site support reasonably determined to be
     necessary by RSA to Your location specified on page 1 hereof.

2.4  ERROR CORRECTION.  RSA will from time to time offer You, at no additional
     ----------------                                                         
cost, Fixes under this Agreement, but has no obligations to offer such Fixes.
All Fixes provided to You shall constitute RSA Software under the Licensed
Agreement and shall be governed by the terms thereof.  In the event You discover
an error in the RSA Software which causes the RSA Software not to operate in
material conformance to RSA's published specifications therefor, You shall
submit to RSA a written report describing such error in sufficient detail to
permit RSA to reproduce such error.  Upon receipt of any such written report,
RSA will use its reasonable efforts to correct such an error or to provide a
software patch or bypass around such an error as early as practicable.  However,
under no circumstances does RSA warrant or represent all errors can or will be
corrected.  Furthermore, RSA shall not be responsible for correcting any error
if You fail to incorporate in Your Licensed Product any Fixes or Update that RSA
has provided to You.

2.5  UPDATES.  RSA will from time to time offer You, at no additional cost,
     -------                                                               
Updates of the RSA Software during the term of this Support Agreement.  You
understand, however, that RSA is not obligated to provide any Update.  Absent
any restriction to Your right to use the algorithms contained in RSA Software,
as set forth in the applicable Licensed Agreement in force at the time of
execution of this Support Agreement, Your license rights to any Updates shall
also extend to any new algorithms contained in such Updates.  Any Updates
acquired by You shall be governed by all of the terms and provisions of the
Licensed Agreement.

                       3.  MAINTENANCE AND SUPPORT FEES

3.1  SUPPORT FEES.  In consideration of RSA's providing the maintenance and
     ------------                                                          
support services described herein, You agree to pay RSA the initial Support Fee
set forth on the first page hereof.  Such amount shall be payable for the first
year upon the execution of this Support Agreement, and for each subsequent year
in advance of the commencement of such year.  The Support Fee may be modified by
RSA for each renewal term by written notice to You at least ninety (90) days
prior to the end of the then-current term.  If You elect not to renew this
Support Agreement for successive terms (as provided in Section 6.1 below), You
may re-enroll only upon payment of the annual Support Fee for the coming year
and for all Support Fees that would have been paid had You not ceased
maintenance and support.

3.2  ADDITIONAL CHARGES.  In the event RSA is required to take actions to
     ------------------                                                  
correct a difficulty or defect 

                                       6
<PAGE>
 
which is traced to Your errors, modifications, enhancements, software or
hardware, then You shall pay to RSA its time and materials charges at RSA's
rates then in effect. In the event that you have requested RSA's personnel to
travel to perform maintenance or on-site support, You shall reimburse RSA for
any reasonable out-of-pocket expenses incurred, including travel to and from
Your sites, lodging, meals and shipping, as may be necessary in connection with
duties performed under this Section 2 by RSA.

3.3  TAXES.  All taxes, duties, fees and other governmental charges of any kind
     -----                                                                     
(including sales and use taxes, but excluding taxes based on the gross revenues
or net income of RSA) which are imposed by or under the authority of any
government or any political subdivision thereof on the Support Fees or any
aspect of this Support Agreement shall be borne by You and shall not be
considered a part of, a deduction from or an offset against Support Fees.

3.4  TERMS OF PAYMENT.  Support Fees due RSA hereunder shall be paid by You to
     ----------------                                                         
the attention of the Software Licensing Department at RSA's address set forth
above upon execution and, in the case of renewal terms, prior to each
anniversary thereof.  A late payment penalty on any Maintenance Fees not paid
when due shall be assessed at the rate of one percent (1%) per thirty (30) days.
In no event shall Support Fees paid be refundable.

3.5  U.S. CURRENCY.  All payments hereunder shall be made in lawful United
     -------------                                                        
States currency.

                              4.  CONFIDENTIALITY

The parties agree that all obligations and conditions respecting
confidentiality, use of the Source Code (if licensed to You) and publicity in
Section 6 of the License Agreement shall apply to the parties' performance of
this Support Agreement.

               5.  USE LIMITATIONS; TITLE; INTELLECTUAL PROPERTY
                      INDEMNITY; LIMITATION OF LIABILITY

Any and all Upgrades and Fixes provided to You pursuant to this Support
Agreement shall constitute RSA Software under the License Agreement.  As such,
the parties' respective interests and obligations relating to the RSA Software,
including but not limited to license and ownership rights thereto, use
limitations (if any), intellectual property indemnity and limitation of
liability, shall be governed by the terms of the License Agreement.

                           6.  TERM AND TERMINATION

6.1  TERM.  This Support Agreement shall commences on the Effective Date hereof
     ----                                                                      
and shall remain in full force and effect for an initial period of one (1) year,
unless sooner terminated in accordance with this Support Agreement.  Upon
expiration of the initial period and each successive period, this Support
Agreement shall automatically renew for an additional one (1) year period,
unless either party has notified the other of its intent to terminate as set
forth in Section 6.2.3 herein.

6.2  TERMINATION.
     ----------- 

     6.2.1  Either party shall be entitled to terminate this Support Agreement
     at any time on written notice to the other in the event of a material
     default by the other party of this Support Agreement and a failure to cure
     such default within a period of thirty (30) days following receipt of
     written notice specifying that a default has occurred.

     6.2.2  This Support Agreement shall automatically terminate in the event
     that the License Agreement is terminated in accordance with its terms.

                                       7
<PAGE>
 
     6.2.3  This Support Agreement may also be terminated by You for any or no
     reason by providing written notice of such intent at least ninety (90) days
     prior to the end of the then-current term.  RSA may cease to offer support
     and maintenance for future maintenance terms by notice delivered to You
     ninety (90) days or more before the end of the then-current maintenance
     term.

     6.2.4  Upon (i) the institution of any proceedings by or against either
     party seeking relief, reorganization or arrangement under any laws relating
     to insolvency, which proceedings are not dismissed within sixty (60) days;
     (ii) the assignment for the benefit of creditors, or upon the appointment
     of a receiver, liquidator or trustee, of any of either party's property or
     assets; or (iii) the liquidation, dissolution or winding up of either
     party's business, then and in any such events this Support Agreement may
     immediately be terminated by the other party upon written notice.

6.3  SURVIVAL OF CERTAIN TERMS.  The following provisions shall survive any
     -------------------------                                             
expiration or termination:  Sections 3.1, 4, 5, 6 and 7.

                         7.  MISCELLANEOUS PROVISIONS

This Support Agreement is not an amendment to the License Agreement, but instead
is a separate binding agreement which incorporates certain terms of the License
Agreement for the purpose of brevity and assured consistency.  This Agreement
incorporates by this reference Section 11 of the License Agreement in its
entirety.

                                       8
<PAGE>
 
     IN WITNESS WHEREOF, the parties have executed this Agreement as of the date
of the later signature below.

ENTERPRISE NAME:

________________________________        RSA DATA SECURITY, INC.
                                                                       

By:_____________________________        By:_____________________________  

Printed Name:___________________        Printed Name:___________________

Title:__________________________        Title:__________________________

Date:___________________________        Date:___________________________

                                       9

<PAGE>
 
                                                                   EXHIBIT 10.32

                              SUBLEASE AGREEMENT
                              ------------------


EFFECTIVE DATE: September 17, 1998

ARTICLE 1:     FUNDAMENTAL SUBLEASE PROVISIONS.

Article 1.1    PARTIES:  Sublessor:  SILICON GRAPHICS, INC., a Delaware
corporation

                         Sublessee:  VERISIGN, INC., a Delaware corporation

               MASTER LEASE: (Article 3): Sublessor, as tenant, is leasing from
Master Lessor (as described below), as landlord, approximately 51,834 square
feet of space located at 1350 Charleston Road, Mountain View, California (the
"Premises") upon the terms and conditions of that Lease executed on June 14,
1996 (the "Master Lease").  A copy of the Master Lease is attached hereto as
Exhibit A.

Article 1.2    MASTER LESSOR: SHORELINE INVESTMENTS VI, a California general
partnership

Article 1.3    SUBLEASE PREMISES: (Article 2): The Sublease Premises consists of
               the entirety of the Premises and contains approximately 51,834
               square feet (the "Sublease Premises"). The Sublease Premises is
               further described on the drawing attached hereto as Exhibit B.

Article 1.4    SUBLEASE TERM: (Article 4): The Sublease Term shall commence on
               the Commencement Date and end on the Termination Date, unless
               terminated earlier pursuant to the terms of this Sublease.

Article 1.5    COMMENCEMENT DATE: (Article 4.1): January 1, 1999

Article 1.6    TERMINATION DATE:(Article 4.1): June 30, 2005

Article 1.7    RENTAL COMMENCEMENT DATE: January 1, 1999

Article 1.8    MINIMUM MONTHLY RENT: (Article 5.2):

               01/01/99 - 12/31/99   $147,726.90 per month NNN
               01/01/00 - 12/31/00   $152,158.70 per month NNN
               01/01/01 - 12/31/01   $156,723.46 per month NNN
               01/01/02 - 12/31/02   $161,425.17 per month NNN
               01/01/03 - 12/31/03   $166,267.93 per month NNN
               01/01/04 - 12/31/04   $171,255.97 per month NNN
               01/01/05 - 6/30/05    $176,393.64 per month NNN

Article 1.9    PREPAID RENT: (Article 5.4): $147,726.90
<PAGE>
 
Article 1.10   SECURITY DEPOSIT: (Article 6): $176,393.64

Article 1. 11  PERMITTED USE: (Article 7): General and administrative office,
computer labs, research and development, storage and distribution, training, 
education and promotional uses, to the extent permitted under the Master Lease,
only.

Article 1.12   ADDRESSES FOR NOTICES: (Article 11):

               Master Lessor: SHORELINE INVESTMENTS VI
                              c/o RealProp Development Company
                              1710 Zanker Road, Suite 100 
                              San Jose, CA  95112          

               Sublessor:     SILICON GRAPHICS, INC.
                              2011 N. Shoreline Blvd.                    
                              Mountain View, CA 94043-1389               
                              Attn:  Manager, Corporate Real Estate      
                              M/S 720                                     
            
                              With a copy to

                              SILICON GRAPHICS, INC.
                              2011 N. Shoreline Blvd.                    
                              Mountain View, CA 94043 -1389    
                              Attn: Legal Services             
                              M/S 710                           
                      
               Sublessee:     VERISIGN, INC.
                              1390 Shorebird Way     
                              Mountain View, CA 94043
                              Attn: Dana Evan         
            
Article 1.13   SUBLESSOR'S BROKER: (Article 19.4): Phil Mahoney, Cornish & Carey
Commercial

Article 1.14   SUBLESSEE'S BROKER: (Article 19.4): Jeff Rodgers, Cornish & Carey
Commercial

Article 1.15   EXHIBITS AND ADDENDA: The following exhibits and any addenda are
annexed to this Sublease:

               Exhibit A - Master Lease
               Exhibit B - Description of Sublease Premises

Each reference in this Sublease Agreement ("Sublease") to any provision in
Article 1 shall be construed to incorporate all of the terms of each such
provision.  In the event of any conflict between this Article 1 and the balance
of the Sublease, the balance of the Sublease shall control.

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<PAGE>
 
ARTICLE 2:   SUBLEASE PREMISES.

Article 2.1  SUBLEASE.  Sublessor hereby subleases to Sublessee and Sublessee
hereby subleases from Sublessor for the Sublease Term, at the Rent and upon the
terms and conditions hereinafter set forth, the Sublease Premises.  Sublessee
acknowledges that the area of the Sublease Premises as specified in Article 1 is
an estimate and that Sublessor does not warrant the exact area of the Sublease
Premises.  By taking possession of the Sublease Premises, Sublessee accepts the
area of the Sublease Premises as that specified in Article 1.

Article 2.2  CONDITION OF THE SUBLEASE PREMISES.  Sublessee shall accept
possession of the Sublease Premises on the Commencement Date in its "as-is,
where-is" condition.  Sublessee acknowledges that except as expressly stated in
this Sublease, (i) Sublessor makes no warranties or representations regarding
the physical condition of the Sublease Premises; (ii) Sublessee has had an
opportunity to inspect the Sublease Premises, including the roof and structural
components of the building; the electrical, plumbing, HVAC, and other building
systems serving the Sublease Premises; and the environmental condition of the
Sublease Premises and related common areas; and to hire experts to conduct such
inspections on its behalf, and (iii) Sublessee is leasing the Sublease Premises
based on its own inspection of the Sublease Premises and those of its agents,
and is not relying on any statements, representations or warranties of Sublessor
or its employees, brokers, agents or other representatives regarding the
physical condition of the Sublease Premises.  Sublessee's taking of possession
of the Sublease Premises shall constitute conclusive evidence that the Sublease
Premises are in good, clean and tenantable condition.  Notwithstanding the
foregoing, Sublessee shall have the right, within two (2) weeks of the
Commencement Date only, to inform Sublessor of any material adverse change in
the condition of the Sublease Premises from the condition thereof as of the
Effective Date.  Sublessor shall promptly thereafter (a) remedy those conditions
that are the tenant's responsibility under the Master Lease and (b) request that
Master Lessor remedy those conditions that are the landlord's responsibility
under the Master Lease.

ARTICLE 3:   TERMS OF THE MASTER LEASE.

Article 3.1  SUBLEASE SUBORDINATE.  This Sublease is subordinate and subject to
all of the terms and conditions of the Master Lease.  If the Master Lease
terminates for any reason whatsoever, this Sublease shall terminate
concurrently, and the parties hereto shall be relieved of any liability
thereafter accruing under this Sublease; provided, however, that the foregoing
shall not be deemed to relieve either party of liability for its failure to
perform its obligations under this Sublease if the Master Lease terminates due
to such a failure.

Article 3.2  ASSUMPTION OF OBLIGATIONS.  To the extent applicable to the
Sublease Premises and Sublessee's use of the Sublease Premises and common areas,
Sublessee hereby expressly agrees to comply with, and assumes and agrees to
perform and discharge, as and when required by the Master Lease, all duties and
obligations to be paid, performed or discharged by Sublessor under the terms,
covenants and conditions of the Master Lease from and after the Commencement
Date, except as specifically set forth in this Sublease.  Sublessee shall not
commit or suffer at any time any act or omission that would violate any
provision of the Master 

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<PAGE>
 
Lease. So long as Sublessee complies with the terms and conditions, and performs
all of its obligations under this Sublease, Sublessor shall not commit any act
or omission during the Sublease Term which would lead to the termination of the
Master Lease by Master Lessor. Notwithstanding the foregoing, if Sublessee fails
to comply with any of its obligations under this Sublease, and does not cure
such failure within the applicable cure period, then Sublessor shall have no
obligation to Sublessee to maintain the Master Lease for Sublessee's benefit.

Article 3.3   MASTER LESSOR'S OBLIGATIONS.  Sublessor shall not be responsible
to Sublessee for furnishing any service, maintenance or repairs to the Sublease
Premises which are the obligation of the Master Lessor under the Master Lease,
it being understood that Sublessee shall look solely to Master Lessor for
performance of any such service, maintenance or repairs.  However, if Master
Lessor shall fall to perform its obligations under the Master Lease, Sublessor,
upon receipt of written notice from Sublessee, shall use commercially reasonable
efforts to attempt to enforce the obligations of Master Lessor under the Master
Lease; provided, however, that Sublessor shall not be required to incur any
costs or expenses in connection therewith unless Sublessee agrees to reimburse
Sublessor for any such costs and expenses as Additional Rent hereunder.

Article 3.4   SUBLESSOR'S RIGHTS AND REMEDIES.  In addition to all the rights
and remedies provided to Sublessor at law or in equity, (a) if Sublessee fails,
within any applicable grace periods provided herein, to perform any act on its
part to be performed pursuant to the requirements of the Master Lease or as
otherwise required by this Sublease, then Sublessor may, but shall not be
obligated to, enter the Sublease Premises to perform such act, and all costs and
expenses incurred by Sublessor in doing so shall be deemed Additional Rent
payable by Sublessee to Sublessor upon demand; and (b) in the event of any
breach by Sublessee of any of 'Its obligations under this Sublease, Sublessor
shall have all of the rights with respect to such default which are available to
Master Lessor under the Master Lease.  Unless otherwise provided in this
Sublease, Sublessee shall be in material default of its obligations under this
Sublease if (i) Sublessee fails to pay Rent as and when due and such failure is
not cured within the time period set forth in the Master Lease less two (2)
business days, or (ii) Sublessee fails to perform any term, covenant or
condition of this Sublease as and when due (except those requiring payment of
Rent) and such failure is not cured within the time period set forth in the
Master Lease less ten (10) days.

Article 3.5   SUBLESSOR'S REPRESENTATIONS.  Sublessor represents that it has not
received from or given to Master Lessor any notices of default under the Master
Lease that have not been cured.

ARTICLE 4:    SUBLEASE TERM.

Article 4.1   COMMENCEMENT AND TERMINATION DATES.  The term of this Sublease
("Sublease Term") shall be for the period of time commencing on the commencement
date described in Article 1 (the "Commencement Date") and ending on the
termination date described in Article 1 or on such earlier date of termination
as provided herein (the "Termination Date").  Sublessee shall have no option to
extend or renew the Sublease Term.

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<PAGE>
 
Article 4.2   DELAY IN COMMENCEMENT.  If for any reason possession of the
Sublease Premises has not been delivered to Sublessee by the scheduled
Commencement Date or any other date, Sublessor shall not be liable to Sublessee
or any other person or entity for any loss or damage resulting therefrom.  In
the event of such delay, the Commencement Date shall be delayed until possession
of the Sublease Premises is delivered to Sublessee, but the Termination Date
shall not be extended.  If Sublessor is unable to deliver possession of the
Sublease Premises to Sublessee within thirty (30) days after the Commencement
Date, then Sublessee may terminate this Sublease by giving written notice to
Sublessor at any time after that date, and the parties shall have no further
liability thereafter accruing under this Sublease; provided, however, that if
Sublessor tenders possession to Sublessee within five (5) days after receipt of
Sublessee's notice of termination, such notice shall be void.  In the event that
this Sublease is terminated pursuant to the terms of this Section 4.2, Sublessor
shall return to Sublessee any Prepaid Rent and/or Security Deposit delivered to
Sublessor pursuant to the terms hereof.

Article 4.3   EARLY OCCUPANCY.  If Sublessor and Sublessee agree that Sublessee
may occupy the Sublease Premises prior to the Rental Commencement Date, such
occupancy shall be subject to all of the provisions of this Sublease, including
the payment of Rent.  Early occupancy of the Sublease Premises shall not advance
the Termination Date.  Sublessee shall, prior to entering the Sublease Premises,
deliver to Sublessor certificates of insurance evidencing the policies required
of Sublessee under this Sublease.

ARTICLE 5:    RENT AND ADDITIONAL EXPENSES.

Article 5.1   PAYMENT OF RENT.  All monies payable by Sublessee under this
Sublease shall constitute "Rent."  All Rent shall be paid in lawful money of the
United States, without any deduction or offset, to Sublessor at the address of
Sublessor specified in Article 1 or such other place as Sublessor may designate
in writing.  No payment by Sublessee of a lesser amount than the Rent herein
stipulated shall be deemed to be other than on account of the earliest
stipulated Rent, nor shall any endorsement or statement on any check or any
letter accompanying any check or payment of Rent be deemed an accord and
satisfaction, and Sublessor may accept such check or payment without prejudice
to its right to recover the balance of such Rent or to pursue any other remedy.
Rent for any partial calendar months at the beginning or end of the Sublease
Term shall be prorated based on a thirty (30) day month.

Article 5.2   MINIMUM MONTHLY RENT.  Sublessee shall pay to Sublessor the sums
set forth in Article 1 hereof as Minimum Monthly Rent, in advance, on the first
day of each calendar month throughout the Sublease Term, commencing on the
Rental Commencement Date.

Article 5.3   ADDITIONAL RENT.  In addition to Minimum Monthly Rent, Sublessee
shall pay to Sublessor from time to time upon demand, the amount of any real
property taxes, maintenance, insurance, utilities and other charges attributable
to the Sublease Premises and common and outside areas payable by Sublessor under
the Master Lease.  It is the parties' intent that this Sublease shall be an
absolute net sublease, and Sublessee agrees that any and all charges, fees,
impositions and payments of any kind whatsoever due or owing by Sublessor under
the Master Lease shall be passed through to Sublessee as Additional Rent
hereunder, except to the extent 

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<PAGE>
 
any such amounts are due and owing by Sublessor as a result of Sublessor's
failure to pay rent under the Master Lease (where Sublessee has timely made such
payments to Sublessor) or carry the insurance required under the Master Lease.

Article 5.4   PREPAID RENT.  Sublessee shall pay to Sublessor the sum specified
in Article 1 as prepaid Rent, which shall be applied to the installments of
Minimum Monthly Rent first coming due under this Sublease, as follows: (i)
$73,861.45 upon execution of this Sublease and (ii) $73,863.45 on November 1,
1998.

Article 5.5   LATE CHARGE.  If Sublessee fails to pay any Rent due hereunder
within five (5) days after Sublessor notifies Sublessee that such amount is past
due, then Sublessee shall pay Sublessor a late charge equal to six percent (6%)
of such delinquent amount as liquidated damages for Sublessee's failure to make
timely payment.  Any notice given by Sublessor pursuant to Sections 1161 and
1162 of the California Code of Civil Procedure shall be deemed to be concurrent
with. and not in addition to, the notice required herein.  This provision for a
late charge shall not be deemed to grant Sublessee a grace period or extension
of time for performance.  If any Rent remains delinquent for a period in excess
of thirty (30) days then, in addition to such late charge, Sublessee shall pay
to Sublessor interest on the delinquent amount from the end of such thirty (30)
day period until paid, at the rate of ten percent (10%) per annum or the maximum
rate permitted by law.

ARTICLE 6:    SECURITY DEPOSIT.  Sublessee shall deposit with Sublessor in cash
the sum specified in Article 1 hereof as a "Security Deposit" as follows: (i)
$88,196.82 upon execution of this Sublease and (ii) $88,196.82 on November 1,
1998.  The Security Deposit shall be held by Sublessor as security for
Sublessee's faithful performance under this Sublease.  If Sublessee fails to pay
any Rent as and when due under this Sublease or otherwise fails to perform its
obligations hereunder, then Sublessor may, at its option and without prejudice
to any other remedy which Sublessor may have, apply, use or retain all or any
portion of the Security Deposit toward the payment of delinquent Rent or for any
loss or damage sustained by Sublessor due to such failure by Sublessee.
Sublessee shall upon demand restore the Security Deposit to the original sum
deposited.  The Security Deposit shall not bear interest nor shall Sublessor be
required to keep such sum separate from its general funds.  Sublessee shall have
the right to provide the Security Deposit in the form of a letter of credit in
the full amount of the Security Deposit (the "Letter of Credit").  The Letter of
Credit shall be in a form and issued by a financial institution that is
reasonably acceptable to Sublessor.  Sublessee shall cause the Letter of Credit
to remain in effect during the entire Sublease Term and for an additional sixty
(60) days following the expiration or earlier termination of this Sublease.  If
Sublessee fails to maintain, renew or replace the Letter of Credit at least
thirty (30) days before its stated expiration date, Sublessor may, without
prejudice to any other right or remedy, draw upon the entire amount of the
Letter of Credit.  Any amount drawn by Sublessor on the Letter of Credit but not
applied by Sublessor to satisfy Sublessee's obligations hereunder shall be held
by Sublessor in accordance with the other provisions of this section.  If
Sublessor draws on any portion of the Letter of Credit and applies such amount
to cure Sublessee's default, Sublessee shall, within three (3) days of demand by
Sublessor, restore the Letter of Credit to the full amount or deposit
immediately available funds with Sublessor in the amount drawn under the Letter
of Credit.  To the extent not otherwise applied by Sublessor as 

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provided herein, the Security Deposit shall be returned to Sublessee within
thirty (30) days after the Termination Date. In the event of bankruptcy or other
debtor-creditor proceedings filed by or against Sublessee, such Security Deposit
shall be deemed to be applied first to the payment of Rent due Sublessor for the
period immediately prior to the filing of such proceedings.

ARTICLE 7:   USE.

Article 7.1  USE OF THE SUBLEASE PREMISES.  Sublessee shall use the Sublease
Premises solely for the purposes specified in Article 1 and otherwise in strict
conformance with the requirements of the Master Lease, and for no other purpose
whatsoever.

Article 7.2  SUITABILITY.  Sublessee acknowledges that neither Sublessor nor any
agent of Sublessor has made any representation or warranty with respect to the
Sublease Premises, the permitted uses that can be made of the Sublease Premises
under existing laws, or the suitability of the Sublease Premises for the conduct
of Sublessee's business, nor has Sublessor agreed to undertake any modification,
alteration or improvement to the Sublease Premises.

Article 7.3  ALTERATIONS.  Sublessee shall make no alterations, improvements or
additions to, in, on or about the Sublease Premises without the prior written
consent of both Sublessor and Master Lessor (which consent shall not be
unreasonably withheld by Sublessor) and otherwise in strict conformance with the
requirements of the Master Lease.

Article 7.4  HAZARDOUS MATERIALS.

     Article 7.4.1  DEFINITIONS.  As used herein, the term "Hazardous Material"
shall have the meaning set forth in Section 39 of the Master Lease.  As used
herein, the term "Hazardous Material Law" shall mean any statute, law,
ordinance, or regulation of any governmental body or agency which regulates the
use, storage, generation, discharge, treatment, transportation, release, or
disposal of any Hazardous Material.

     Article 7.4.2  USE RESTRICTION.  Sublessee shall not cause or permit any
Hazardous Material to be used, stored, generated, discharged, treated,
transported to or from, released or disposed of in, on, over, through, or about
the Sublease Premises, or any other land or improvements in the vicinity of the
Sublease Premises, except to the extent permitted under Section 39(H) of the
Master Lease, without the prior written consent of Master Lessor and Sublessor,
which consent may be withheld in the sole and absolute discretion of Master
Lessor and/or Sublessor.  Without limiting the generality of the foregoing, (a)
any use, storage, generation, discharge, treatment, transportation, release, or
disposal of Hazardous Material by Sublessee shall strictly comply with all
applicable Hazardous Material Laws, and (b) if the presence of Hazardous
Material on the Sublease Premises caused or permitted by Sublessee or its
agents, employees, invitees or contractors results in contamination of the
Sublease Premises or any soil, air, ground or surface waters under, through,
over, on, in or about the Sublease Premises, Sublessee, at its expense, shall
promptly take all actions necessary to return the Sublease Premises to the
condition existing prior to the existence of such Hazardous Material.

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     Article 7.4.3  INDEMNITY.  Sublessee shall defend, protect, hold harmless
and indemnify Sublessor and its agents, employees, contractors, stockholders,
officers, directors, successors and assigns with respect to all judgments,
claims, damages, actions, losses, penalties, fines, liabilities and other
expenses (including, but not limited to, reasonable attorneys', consultants',
and expert witnesses' fees) which result from or arise out of the storage, use,
generation, discharge, treatment, transportation. release or disposal of
Hazardous Material by Sublessee or its agents, employees, contractors, or
invitees in, on, over, through, from or about the Sublease Premises.  The
foregoing obligations shall survive the expiration or earlier termination of
this Sublease.

ARTICLE 8:   SURRENDER.

Article 8.1  CONDITION OF THE SUBLEASE PREMISES.  Upon the expiration or
earlier termination of this Sublease, Sublessee shall surrender the Sublease
Premises in good condition and repair, excepting only ordinary wear and tear and
damage by fire, earthquake, act of God or the elements.  Sublessee agrees to
repair any damage to the Sublease Premises, or the building of which the
Sublease Premises are a part, caused by or related to the removal of Sublessee's
personal property, fixtures, furniture, equipment or signage, or any
improvements, alterations or additions installed by Sublessee which Sublessor
and/or Master Lessor allow or require Sublessee to remove upon expiration or
earlier termination of this Sublease, including, without limitation, repairing
the floor and patching and/or painting the walls to the reasonable satisfaction
of Sublessor and/or Master Lessor, all at Sublessee's sole cost and expense.
Upon the expiration of this Sublease, Sublessor will not require the removal of
any such improvements, alterations or additions if such removal is not required
by Master Lessor.  Sublessee shall indemnify Sublessor against any loss or
liability resulting from delay by Sublessee in so surrendering the Sublease
Premises, including, without limitation, any claims made by the Master Lessor
founded on such delay.  Such indemnity obligation shall survive the expiration
or earlier termination of this Sublease.

Article 8.2  SUBLESSOR'S RIGHT TO ACCESS.  In the thirty (30) days prior to the
expiration of this Sublease, or such longer time as is reasonably necessary,
Sublessor shall have the right, upon at least twenty-four (24) hours prior
notice, to enter the Sublease Premises to remove personal property, business or
trade fixtures, machinery, equipment cabinetwork, signs, furniture, movable
partitions or permanent improvements or additions which Sublessor is required to
remove (not including those items to be removed by Sublessee pursuant to Article
8.1 of this Sublease) prior to surrender pursuant to the terms of the Master
Lease.  Any work performed by Sublessor pursuant to the terms of the preceding
sentence shall be done in a reasonable manner to minimize the amount of
inconvenience and interference to Sublessee's use and occupancy of the Sublease
Premises; provided, however, Sublessor shall not be liable to Sublessee for any
such inconvenience or interference caused by Sublessor's exercise of its rights
pursuant to this provision.

ARTICLE 9:   CONSENT.  Whenever the consent or approval of Master Lessor is
required pursuant to the terms of the Master Lease, for the purposes of this
Sublease, Sublessee, in each such instance, shall be required to obtain the
written consent or approval of both Master Lessor and Sublessor, which consent
shall not be unreasonably withheld or delayed by Sublessor if 

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Master Lessor so consents. If Master Lessor refuses to grant its consent or
approval, Sublessor may withhold its consent or approval and Sublessee agrees
that such action by Sublessor shall be deemed reasonable.

ARTICLE 10:  INSURANCE.  All insurance policies required to be carried by
Sublessor under the Master Lease shall be maintained by Sublessee pursuant to
the terms of the Master Lease, and shall name Sublessor and Master Lessor (and
such other lenders, persons, firms, or corporations as are designated by Master
Lessor) as additional insureds (by endorsement, if required under the applicable
policy).  All policies shall be written as primary policies with respect to the
interests of Master Lessor and Sublessor and such other additional insureds and
shall provide that any insurance carried by Master Lessor or Sublessor or such
other additional insureds is excess and not contributing insurance with respect
to the insurance required hereunder.  All policies shall also contain "cross
liability" or "severability of interest" provisions, and shall insure the
performance of the indemnity set forth in Article 14 of this Sublease.
Sublessee shall provide Master Lessor and Sublessor with copies or certificates
of all policies, including in each instance evidence (by endorsement if required
under the applicable policy) that such insurance shall not be canceled or
reduced except after thirty (30) days prior written notice to Master Lessor and
Sublessor.  All deductibles, if any, under any such insurance policies shall be
subject to the prior reasonable approval of Sublessor, and all certificates
delivered to Master Lessor and Sublessor shall specify the limits of the policy
and all deductibles thereunder.

ARTICLE 11:  NOTICES.

Article 11.1 NOTICE REQUIREMENTS. All notices, demands, consents, and approvals
which may or are required to be given by either party to the other under this
Sublease shall be in writing and may be personally delivered or given or made by
overnight courier such as Federal Express, by facsimile transmission or made by
United States registered or certified mail addressed as shown in Article 1. Any
notice or demand so given shall be deemed to be delivered or made on the date
personal service is effected or, on the next business day if sent by overnight
courier, or the same day as given if sent by facsimile transmission and received
by 5:00 p.m. Pacific time or on the second business day after the same is
deposited in the United States Mail as registered or certified and addressed as
above provided with postage thereon fully prepaid. Either party hereto may
change its address at any time by giving written notice of such change to the
other party in the manner provided herein at least ten (10) calendar days prior
to the date such change is desired to be effective.

Article 11.2 NOTICES FROM MASTER LESSOR. Each party shall provide to the other
party a copy of any notice or demand received from or delivered to Master Lessor
within twenty four (24) hours of receiving or delivering such notice or demand.

ARTICLE 12:  DAMAGE, DESTRUCTION, CONDEMNATION.  To the extent that the Master
Lease gives Sublessor any rights following the occurrence of any damage,
destruction or condemnation to terminate the Master Lease, to repair or restore
the Sublease Premises, to contribute toward such repair or restoration costs to
avoid termination, to obtain and utilize insurance or condemnation proceeds to
repair or restore the Sublease Premises, or any similar 

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rights, such rights shall be reserved to and exercisable solely by Sublessor, in
its sole and absolute discretion. and not by Sublessee. The exercise of any such
right by Sublessor shall under no circumstances constitute a default or breach
under this Sublease or subject Sublessor to any liability therefor. In the
event, however, that Sublessor elects, in its sole and absolute discretion, to
prevent Master Lessor from terminating the Master Lease by paying Master Lessor
the amount required to restore the Sublease Premises in excess of the amount
required to be paid by Master Lessor (as set forth in Section 16 of the Master
Lease), Sublessee shall not be required to reimburse Sublessor for such amount
unless Sublessee has agreed, within five (5) days after notice from Sublessor,
to reimburse Sublessor for such amount. In the event that Sublessee fails to
agree to reimburse Sublessor for such amount within such time period, however,
Sublessor shall have the right to terminate this Sublease upon delivery of ten
(10) days' notice to Sublessee. Notwithstanding the preceding to the contrary,
if, pursuant to Article 16 of the Master Lease, the Sublease Premises is damaged
or destroyed from any insured peril to the extent of less than fifty percent
(50%) of the then replacement cost of the Sublease Premises and Master Lessor's
written notice to Sublessor sets forth a repair period greater than one hundred
eighty (180) days (a copy of which notice shall be promptly delivered to
Sublessee by Sublessor), then Sublessee shall have the right to terminate this
Sublease by delivering written notice of termination to Sublessor within twenty
(20) days following receipt of Master Lessor's written notice. In the event that
Sublessor's rent under the Master Lease is abated as a result of a casualty, the
Minimum Monthly Rent due hereunder shall be abated on a pro rata basis such that
the Minimum Monthly Rent shall be reduced by the same percentage as the "
Monthly Installments" are reduced under the Master Lease.

ARTICLE 13:  INSPECTION OF THE SUBLEASE PREMISES.  Sublessee shall permit
Sublessor and its agents to enter the Sublease Premises at any reasonable time
for the purpose of inspecting the same or posting a notice of non-responsibility
for alterations, additions or repairs, provided that Sublessor (i) provides at
least twenty-four (24) hours prior notice (except in the case of emergency),
(ii) shall be accompanied by an employee of Sublessee at all times while in the
Sublease Premises, (iii) shall comply with Sublessee's security procedures, and
(iv) shall not unreasonably interfere with Sublessee's use of the Sublease
Premises or the conduct of its business therein.

ARTICLE 14:  INDEMNITY; EXEMPTION OF SUBLESSOR FROM LIABILITY.

Article 14.1 SUBLESSEE INDEMNITY. Sublessee shall indemnify, defend (with
counsel reasonably satisfactory to Sublessor), protect and hold Sublessor
harmless from and against any and all claims, demands, actions, suits,
proceedings, liabilities, obligations, losses, damages, judgments, costs,
expenses (including, but not limited to, reasonable attorneys', consultants' and
expert witness fees) arising out of or related (i) Sublessee's use of the
Sublease Premises, the conduct of Sublessee's business therein, or any activity,
work or thing done, permitted or suffered by Sublessee in or about the Sublease
Premises, (ii) a breach by Sublessee in the performance in a timely manner of
any obligation of Sublessee to be performed under this Sublease, (iii) a failure
by Sublessee to comply with any term, covenant, condition or restriction under
the Master Lease required to be performed by or applicable to Sublessee, or (iv)
the negligence or

                                       10
<PAGE>
 
intentional acts of Sublessee or Sublessee's agents, contractors, employees,
subtenants, licensees, or invitees related to the Sublease Premises or this
Sublease.  The foregoing obligations shall survive the expiration or earlier
termination of this Sublease.

Article 14.2 SUBLESSEE WAIVER.  Sublessee, as a material part of the
consideration to Sublessor, hereby waives all claims against Sublessor for
damage to property or injury to persons in, upon or about the Sublease Premises
arising from any cause, except to the extent such damage or injury is caused by
the gross negligence or willful misconduct of Sublessor.  This waiver shall
survive the expiration or earlier termination of this Sublease.

Article 14.3 MUTUAL WAIVER OF SUBROGATION. The parties hereby waive any rights
of recovery each may have against the other in connection with any loss or
damage occasioned to either party's respective property, the Sublease Premises,
or its contents, arising from any risk generally covered by fire and extended
coverage insurance, irrespective of the cause of such fire or casualty. In
addition, the parties each, on behalf of their respective insurance companies,
waive any right of subrogation that such insurance company may have against the
other party for any such loss or damage, provided that such waiver does not
invalidate any such policy. In the event that such waiver would invalidate such
policy, the insured party shall promptly notify the other in writing.

ARTICLE 15:  ASSIGNMENT AND SUBLETTING.  Sublessee shall not voluntarily or by
operation of law assign this Sublease or enter into license or concession
agreement, sublet all or any part of the Sublease Premises, or otherwise
transfer, mortgage, pledge, hypothecate or encumber all or any part of
Sublessee's interest in this Sublease or in the Sublease Premises or any part
thereof (each, a "Transfer"), without the prior written consent of Master Lessor
(pursuant to the terms of the Master Lease) and Sublessor, which consent shall
not be unreasonably withheld by Sublessor.  Sublessee shall have no right to
Transfer less than the entire area of the Sublease Premises, and Sublessee
agrees that it shall be reasonable for Sublessor or Master Lessor to withhold
its consent to any Transfer of a portion of the Sublease Premises.  Any attempt
to effect a Transfer without such consent being first had and obtained shall be
wholly void and shall constitute a default by Sublessee under this Sublease.
Sublessee hereby irrevocably assigns to Sublessor all rent and other sums or
consideration in any form, from any such subletting or assignment, and agrees
that Sublessor, as assignee and as attorney-in-fact for Sublessee, or a receiver
for Sublessee appointed upon Sublessor's application, may collect such rent and
other sums and apply the same against amounts owing to Sublessor in the event of
Sublessee's default; provided, however, that until the occurrence of any act of
default by Sublessee or Sublessee's assignee or subtenant, Sublessee shall have
the right to collect such sums, provided that two-thirds (2/3) of all rent and
other charges payable by any such assignee, subtenant or other transferee in
excess of the Rent payable under this Sublease shall belong solely and
exclusively to Sublessor and paid to Sublessor within thirty (30) days following
Sublessee's receipt thereof.  It is the intention of the parties that Sublessor
pay to Master Lessor one-half (1/2) of such amounts paid by Sublessee as may be
required under Section 25(B)(1) of the Master Lease.

                                       11
<PAGE>
 
ARTICLE 16:  DELIVFRY OF DOCUMIENTS.  Sublessee shall execute and deliver any
document or other instrument reasonably required by Master Lessor or Sublessor
pursuant to the Master Lease within five (5) days following receipt of a written
request from Master Lessor or Sublessor.  Failure to comply with this provision
shall constitute a default by Sublessee under this Sublease.

ARTICLE 17:  HOLDING OVER. Any holding over by Sublessee after the Termination
Date, without the prior written consent of Master Lessor and Sublessor, shall
not constitute a renewal or extension of this Sublease or give Sublessee any
rights in or to the Sublease Premises. Any holding over by Sublessee after the
Termination Date, with the prior written consent of Master Lessor and Sublessor,
shall be construed as a month-to-month tenancy on the same terms and conditions
as specified in this Sublease, except that Sublessee shall pay to Sublessor as
Minimum Monthly Rent during such tenancy an amount equal to One Hundred Fifty
Percent (150%) of the most recent Minimum Monthly Rent. Any holding over by
Sublessee after the Termination Date, without the prior written consent of both
Master Lessor and Sublessor, shall be construed as a tenancy at sufferance
(terminable upon notice by Sublessor) on the same terms and conditions as
specified in this Sublease, except that Sublessee shall pay to Sublessor as
Minimum Monthly Rent during such tenancy an amount equal to Two Hundred Percent
(200%) of the most recent Minimum Monthly Rent.

ARTICLE 18:  OPTIONS. Any right of Sublessor to extend or renew the term of the
Master Lease or to expand the Premises (if any) shall be reserved to and
exercisable solely by Sublessor, in its sole discretion, and not by Sublessee.
Sublessor agrees to exercise such options to extend or renew the Master Lease
only to the extent necessary to fulfill its obligation to sublease the Sublease
Premises to Sublessee for the Sublease Tenn.

ARTICLE 19:  GENERAL PROVISIONS.

Article 19.1 SEVERABILITY. If any term or provision of this Sublease shall, to
any extent, be determined by a court of competent jurisdiction to be invalid or
unenforceable, the remainder of this Sublease shall not be affected thereby, and
each term and provision of this Sublease shall be valid and enforceable to the
fullest extent permitted by law.

Article 19.2 ATTORNEYS' FEES; COSTS OF SUIT.  If Sublessee or Sublessor shall
bring any action for any relief against the other, declaratory or otherwise,
arising out of this Sublease, including any suit by Sublessor for the recovery
of Rent or possession of the Sublease Premises, the prevailing party shall be
entitled to recover its reasonable attorneys' fees and costs of suit.

Article 19.3 WAIVER.  No covenant, term or condition or the breach thereof
shall be deemed waived, except by written consent of the party against whom the
waiver is claimed, and any waiver of the breach of any covenant, term or
condition shall not be deemed to be a waiver of any other covenant, term or
condition.  Acceptance by Sublessor of any performance by Sublessee after the
time the same shall have become due shall not constitute a waiver by Sublessor
of the breach or default of any covenant, term or condition unless otherwise
expressly agreed to by Sublessor in writing.

                                       12
<PAGE>
 
Article 19.4 BROKERAGE COMMISSIONS.  The parties represent and warrant to each
other that they have dealt with no brokers, finders, agents or other person in
connection with the transaction contemplated hereby to whom a brokerage or other
commission or fee may be payable, except for the brokers named in Article 1.
Each party shall indemnify, defend and hold the other harmless from any claims
arising from any breach by the indemnifying party of the representation and
warranty in this Section 19.4.

Article 19.5 BINDING EFFECT.  Preparation of this Sublease by Sublessor or
Sublessor's agent and submission of the same to Sublessee shall not be deemed an
offer to lease.  This Sublease shall become binding upon Sublessor and Sublessee
only when fully executed by Sublessor and Sublessee and approved in writing by
Master Lessor.

Article 19.6 ENTIRE AGREEMENT.  This instrument, along with any exhibits and
addenda hereto, constitutes the entire agreement between Sublessor and Sublessee
relative to the Sublease Premises.  This Sublease may be altered, amended or
revoked only by an instrument in writing signed by both Sublessor and Sublessee.
There are no oral agreements or representations between the parties affecting
this Sublease, and this Sublease supersedes and cancels any and all previous
negotiations, arrangements, brochures, agreements, representations and
understandings, if any, between the parties hereto.

Article 19.7 EXECUTION. This Sublease may be executed in one or more
counterparts, each of which shall be considered an original counterpart, and all
of which together shall constitute one and the same instrument. Each person
executing this Sublease represents that the execution of this Sublease has been
duly authorized by the party on whose behalf the person is executing this
Sublease.

Article 19.8 MASTER LESSOR CONSENT.  The obligations of the parties under this
Sublease are conditioned upon receipt by Sublessor of Master Lessor's written
consent to this Sublease in substantially the same form as Exhibit C attached
hereto.

Article 19.9 ACCESS TO FIBER STATION.  Sublessor reserves the right to access
during the Sublease Term the underground data fiber station located within the
parking area of the Premises and shown on Exhibit D ("Fiber Station").
Sublessor agrees to provide Sublessee with at least twenty-four (24) hours
notice of any such entry, except that no such notice shall be required in the
event of an emergency (including, without limitation, emergency service of the
fiber and related installations).  Sublessee agrees that it shall have no right
to access or use the Fiber Station unless and until Sublessee enters into a
separate access agreement in a form reasonably acceptable to Sublessor.

                                       13
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have entered into this Sublease as
of the Effective Date set forth hereinabove.

SUBLESSOR                                SUBLESSEE:

SILICON GRAPHICS, INC.,                  VERISIGN, INC.,
a Delaware corporation                   a Delaware corporation

By /s/ Raymond E. Johnson                By /s/ Dana Evan
   ---------------------------              ----------------------------

Its Vice Pres. Real Estate & Facilities  Its CFO
    -----------------------------------      ---------------------------

                                       14
<PAGE>
 
                                LEASE AGREEMENT
                                ---------------

     1.   Parties.  This lease is made by and between SHORELINE INVESTMENTS VI,
          -------                                                              
a California general partnership ("Landlord"), and SILICON GRAPHICS, INC., a
Delaware corporation (Tenant").

     2.   Demise of Premises.  Landlord hereby leases to Tenant and Tenant
          ------------------                                              
hereby leases tram Landlord, upon the terms and conditions hereinafter set
forth, those certain premises (the "Premises") situated in the City of Mountain
View, County of Santa Clara, State of California, described as follows: that
certain building containing approximately fifty-one thousand eight hundred
thirty-four (51,834) square feet of floor space commonly known as 1350
Charleston Road, shown cross-hatched on the site plan (the "Site Plan") attached
hereto as Exhibit "A" together with all improvements now or hereafter located
therein or thereon. The Building is located on the parcel (the "Parcel")
described in Exhibit "B" attached hereto.  Tenant currently occupies the
Premises pursuant to a prior lease and is thoroughly familiar with the physical
condition of the Premises.  Landlord shall not be required to make any
alterations, additions or improvements to the Premises and the Premises shall be
leased to Tenant in its "as-is" condition.

     3.   Term  The term of this Lease ("Lease Term"') shall be for five (5)
          ----                                                              
years, commencing on July 1, 1997 (the "Commencement Date") and ending on June
30, 2002 unless sooner terminated pursuant to any provision hereof.
Notwithstanding said scheduled Commencement Date, if for any reason Landlord
cannot deliver possession of the Premises to Tenant on said date, Landlord shall
not be subject to any liability therefor, nor shall such failure affect the
validity of this Lease or the obligations of Tenant hereunder, but in such case
Tenant shall not be obligated to pay rent until possession of the Premises is
tendered to Tenant and the commencement and termination dates of this Lease
shall be revised to conform to the date of Landlord's delivery of possession.

     4.   Rent.
          ---- 

          A.   Time of Payment.  Tenant shall pay to Landlord as rent for the
               ---------------                                               
Premises the sum specified in Subparagraph 4.B below (the "Monthly Installment")
each month in advance on the first day of each calendar month, without deduction
or offset, prior notice or demand, commencing on the Commencement Date and
continuing through the term of this Lease, together with such additional rents
as are payable by Tenant to Landlord under the terms of this Lease.  The Monthly
Installment for any period during the Lease Term which period is less than one
(1) full month shall be a pro rate portion of the Monthly Installment based upon
a thirty (30) day month.

          B.   Monthly Installment.  The Monthly Installment of rent payable
               -------------------                                          
each month during the period from July 1, 1997 through and including December
31, 1998, shall be the sum of Sixty-Four Thousand Seven Hundred Ninety Dollars
($64,790.00) per month.  The Monthly installment of rent payable each month
during the period from January 1, 1999 through and including June 30, 2002,
shall be the sum of Sixty-Nine Thousand Nine Hundred Seventy-Six Dollars
($69,976.00) per month.
<PAGE>
 
          C.   Late Charge.  Tenant acknowledges that late payment by Tenant to
               -----------                                                     
Landlord of rent and other sums due hereunder will cause Landlord to incur costs
not contemplated by this Lease, the exact amount of which will he extremely
difficult to ascertain.  Such costs include, but are not limited to, processing
and accounting charges, and late charges which may be imposed on Landlord by the
terms of any mortgage or deed of trust covering the premises.  Accordingly, if
any installment of rent or any other sum due from Tenant shall not be -received
by Landlord within ten (10) days after Tenant's receipt of written notice from
Landlord of the unpaid amount, Tenant shall pay to Landlord, as additional rent,
a late charge equal to six percent (6%) of such overdue amount.  The parties
hereby agree that such late charge represents a fair and reasonable estimate of
the costs Landlord will incur by reason of late payment by Tenant.  Acceptance
of such late charge by Landlord shall in no event constitute a waiver of
Tenant's default with respect to such overdue amount, nor prevent Landlord from
exercising any of its other rights and -remedies granted hereunder.

          D.      Additional Rent. All taxes, insurance premiums, Outside Area
                  ---------------
Charges, late charges, costs and expenses which Tenant is required to pay
hereunder, together with all interest and penalties that may accrue thereon in
the event of Tenant's failure to pay such amounts, and all reasonable damages,
costs, and attorneys' fees and expenses which Landlord may incur by reason of
any default of Tenant or failure on Tenant's part to comply with the terms of
this Lease, shall be deemed to be additional rent ("Additional Rent") and shall
be paid in addition to the Monthly Installment of rent, and, in the event of
nonpayment by Tenant, Landlord shall have all of the rights and remedies with
respect thereto as Landlord has for the nonpayment of the monthly installment of
rent.

          E.   Place of Payment.  Rent Shall be pay-able in lawful money of the
               ----------------                                                
United States of America to Landlord at 1710 Zanker Road, Suite 100, San Jose,
California 95112 or to such other person(s) or at such other place(s) as
Landlord may designate in writing.

          F.   Advance Payment.  Concurrently with the execution of this Lease,
               ---------------                                                 
Tenant shall pay to Landlord the sum of none Dollars ($0.00) to the applied to
the Monthly installment of rent first accruing under this Lease.

     5.   Security Deposit.  Tenant shall deposit the sum of none Dollars
          ----------------                                               
($0.00) (the "Security Deposit") upon execution of this Lease, to secure the
faithful performance by Tenant of each term, covenant and condition of this
Lease.  If Tenant shall at any time fail to make any payment or fail to keep or
perform any term, covenant or condition on its part to be made or performed or
kept under this Lease, Landlord may, but shall not be obligated to and without
waiving or releasing Tenant from any obligation under this Lease, use, apply or
retain the whole or any part of the Security Deposit (A) to the extent of any
sum due to Landlord; (B) to make any required payment on Tenant's behalf; or (C)
to compensate Landlord for any loss, damages, attorneys' fees or expense
sustained by Landlord due to Tenant's default.  In such event, Tenant shall,
within five (5) days of written demand by Landlord, remit to Landlord sufficient
funds to restore the security Deposit to its original sum.  No interest shall
accrue on the Security Deposit.  Landlord shall not be required to keep the
Security Deposit separate from its general funds.  Should Tenant comply with all
the terms, covenants, and conditions of this Lease 


                                       2
<PAGE>
 
and at the end of the term of this Lease leave the Premises in the condition
required by this Lease, then said Security Deposit, less any sums owing to
Landlord or which Landlord is otherwise entitled to retain, shall be returned to
Tenant within thirty (30) days after the termination of this Lease and vacancy
of the Premises by Tenant.

     6.   Use of Premises.  Tenant shall use the Premises only in conformance
          ---------------                                                    
with applicable governmental laws, regulations, rules and ordinances for the
purpose of research and development, office, administration, light
manufacturing, assembly, warehousing and distribution of electronics products,
training, education, promotional and other related legal uses and for no other
purpose.  Tenant shall indemnify, protect, defend, and hold Landlord harmless
against any loss, expense, damage, attorneys' fees or liability arising out of
the failure of Tenant to comply with any applicable law applicable to Tenant's
use of the Premises.  Tenant shall not commit or suffer to be committed, any
waste upon the Premises, or any nuisance, or other acts or things which may
disturb the quiet enjoyment of any other tenant in the buildings adjacent to the
Premises, or allow any sale by auction upon the Premises, or allow the Premises
to be used for any unlawful purpose, or place any loads upon the floor, walls or
ceiling which endanger the structure, or place any harmful liquids in the
drainage system of the Building.  No waste materials or refuse shall be dumped
upon or permitted to remain upon any part of the Premises outside of the
Building, except in trash containers placed inside exterior enclosures
designated for that purpose by Landlord.  No materials, supplies, equipment,
finished products or semifinished products, raw materials or articles of any
nature shall be stored upon or permitted to remain on any portion of the
Premises outside of the Building.  Tenant shall strictly comply with the
provisions of Paragraph 39 below.

     7.   Taxes and Assessments.
          --------------------- 

          A.   Tenant's Property.  Tenant shall pay before delinquency any and
               -----------------                                              
all taxes and assessments, license fees and public charges levied, assessed or
imposed upon or against Tenant's fixtures, equipment, furnishings, furniture,
appliances and personal property installed or located on or within the Premises.
Tenant shall cause said fixtures, equipment, furnishings, furniture, appliances
and personal property to be assessed and billed separately from the real
property of Landlord.  If any of Tenant's said personal property shall be
assessed with Landlord's real property, Tenant shall pay Landlord the taxes
attributable to Tenant's personal property within ten (10) days after receipt of
a written statement from Landlord setting forth the taxes applicable to Tenant's
property.

          B.   Property Taxes.  Tenant shall pay, as additional rent, all
               --------------                                            
Property Taxes levied or assessed with respect to the Premises and the land
comprising the Parcel and with respect to all buildings and improvements located
on the Parcel which become due or accrue during the term of this Lease.  Tenant
shall pay such Property Taxes to Landlord on or before twenty (20) days after
receipt of billing.  If Tenant fails to do so, Tenant shall reimburse Landlord,
on demand, for all interest, late fees and penalties that the taxing authority
charges Landlord.  In the event Landlord's mortgagee requires an impound for
Property Taxes, then on the first day of each month during the Lease Term,
Tenant shall pay Landlord one twelfth (1/12) 

                                       3
<PAGE>
 
of its annual share of such Property Taxes. Tenant's liability hereunder shall
be prorated to reflect the Commencement and termination dates of this Lease.

     For the purpose of this Lease, "Property Taxes" means and includes all
taxes, assessments (including, but not limited to, assessments for public
improvements or benefits), taxes based on vehicles utilizing parking areas,
taxes based or measured by the rent paid, payable or received under this Lease,
taxes on the value, use, or occupancy of the Premises, the Building and/or the
Parcel, Environmental Surcharges, and all other governmental impositions and
charges of every kind and nature whatsoever, whether or not customary or within
the contemplation of the parties hereto and regardless of whether the same shall
be extraordinary or ordinary, general or special, unforeseen or foreseen, or
similar or dissimilar to any of the foregoing which, at any time during the
Lease Term, shall be applicable to the Premises, the Building and/or, the Parcel
or assessed, levied or imposed upon the Premises, the Building and/or the
Parcel, or become due and payable and a lien or charge upon the Premises, the
Building and/or the Parcel, or any part thereof, under or by virtue of any
present or future laws, statutes, ordinances, regulations or other requirements
of any governmental authority whatsoever.  The term "Environmental Surcharges"
shall mean and include any and all expenses, taxes, charges or penalties imposed
by the Federal Department of Energy, the Federal Environmental Protection
Agency, the Federal Clean Air Act, or any regulations promulgated thereunder or
any other local, state or federal governmental agency or entity now or hereafter
vested with the power to impose taxes, assessments, or other types of surcharges
as a means of controlling or abating environmental pollution or the use of
energy.  The term "Property Taxes" shall not include any federal, state or local
net income, estate, or inheritance tax imposed on Landlord.  Notwithstanding the
foregoing, the term "Property Taxes" shall not include any Environmental
Surcharge arising out of any Hazardous Material (a) existing in, on, under, over
or about the Premises and/or Parcel prior to the Commencement Date or (b) not
otherwise used, stored, generated, discharged, transported to or from, or
disposed of in, on, under, over or about the Premises and/or Parcel by Tenant or
its agents, employees or contractors.  Notwithstanding anything in this
Paragraph 7.B to the contrary, during the initial three (3) year term of this
Lease only, the term "Property Taxes" shall not include any increases in real
property taxes that result from a voluntary sale or ocher transfer of the
Premises and/or Parcel by Landlord or controlling interest of Landlord or the
acquisition by Landlord of the reversionary interest in the Parcel; provided,
however, "Property Taxes" shall include any increases in real property taxes
that result from a foreclosure sale, deed lieu of foreclosure or other
involuntary transfer of ownership of the Premises and/or the Parcel.
Notwithstanding the foregoing, if the initial term of this Lease is extended by
the exercise of any option to extend granted in this Lease or otherwise, the
term "Property Taxes" shall include all real property taxes due or accruing
during such extended lease term, including any increases in property taxes
attributable to any sale or other transfer of ownership occurring at any time
following the Commencement Date of this Lease.

          C.   Other Taxes:  Tenant shall, as additional rent, pay or reimburse
               -----------                                                     
Landlord for any tax based upon, allocable to, or measured by the area of the
Premises or the Building or the Parcel; or by the rent paid, payable or received
under this Lease; any tax upon or with respect to the possession, leasing,
operation, management, maintenance, alteration, repair, use or occupancy of the
Premises or any portion thereof; any privilege tax, excise tax, business and

                                       4
<PAGE>
 
occupation tax, gross receipts tax, sales and/or use tax, water tax, sewer tax,
employee tax, occupational license tax imposed upon Landlord or Tenant with
respect to the Premises; any tax upon this transaction or any document to which
Tenant is a party creating or transferring an interest or an estate in the
Premises.

     8.   Insurance.
          --------- 

          A.   Indemnity.  Tenant agrees to indemnify, protect and defend
               ---------                                                 
Landlord against and hold Landlord harmless from any and all claims, causes of
action, judgments, obligations or liabilities, ,and all reasonable expenses
incurred in investigating or resisting the same (including reasonable attorneys
fees), on account of, or arising out of, the operation, maintenance, use or
occupancy of the Premises and the Parcel and all areas appurtenant thereto;
provided, however, that in no event shall Tenant have any obligation to
indemnify, protect, defend, release or hold Landlord harmless from any such
claims, causes of action, judgments, obligations, liabilities, costs and
expenses arising from (i) the negligent acts or omissions or willful misconduct
of Landlord or its agents, employees, invitees or contractors; or (ii) any
breach of Landlord's obligations under this Lease.  Landlord shall indemnify,
defend and hold Tenant harmless from any and all claims, causes of action,
judgments, obligations or liabilities and all reasonable expenses incurred in
investigating or resisting the same (including reasonable attorneys' fees) on
account of, or arising out of, third party claims for personal injury or
property damage caused by the negligent acts or omissions of Landlord or its
employees, agents, invitees or contractors, or any breach of Landlord's
obligations under this Lease.  This Lease is made on the express understanding
that Landlord shall not be liable for, nor suffer loss by reason of, injury to
person or property, from whatever cause (except for the negligence or willful
misconduct of Landlord or its agents, employees, contractors or invitees), which
in any way may be connected with the operation use or occupancy of the Premises
specifically including, without limitation, any liability for injury to the
person or property of Tenant, its agents, officers, employees, licensees and
invitees.

          B.   Liability Insurance.  Tenant shall, at Tenant's expense, obtain
               -------------------                                            
an keep in force during the term of this Lease a policy of comprehensive public
liability insurance insuring Landlord and Tenant against claims and liabilities
arising out of the operation, use, or occupancy of the Premises and the Parcel
and all areas appurtenant thereto, including parking areas.  Such insurance
shall be in an amount of not less than Three Million Dollars ($3,000,000.00) for
bodily injury or death as a result of any one occurrence and Five Hundred
Thousand Dollars ($500,000.00) for damage to property as a result of any one
occurrence.  The insurance shall be with companies having a rating of at least
A/10 in Best's Insurance Guide.  Tenant shall deliver to Landlord, prior to
possession, and at least thirty (30) days prior to the expiration thereof, a
certificate of insurance evidencing the existence of the policy required
hereunder and such certificate shall certify that the policy (1) names Landlord
as an additional insured, (2) shall not be canceled or altered without thirty
(30) days prior written notice to Landlord, (3) insures performance of the
indemnity set forth in Subparagraph 8.A above, (4) the coverage is primary and
any coverage by Landlord is in excess thereto and (5) contains a cross-liability
endorsement.  Landlord may maintain a policy or policies of comprehensive
general liability insurance insuring Landlord (and such others as are designated
by Landlord), against liability for personal injury, 

                                       5
<PAGE>
 
bodily injury, death and damage to property occurring or resulting from an
occurrence in, on or about the Premises or the Outside Area, with such limits of
coverage as Landlord may from time to time determine are reasonably necessary
for its protection. The cost of any such liability insurance maintained by
Landlord shall be a Outside Area Charge and Tenant shall pay, as additional
rent, the full cost of such insurance to Landlord as provided in Paragraph 12
below.

          C.   Property Insurance.  Landlord shall obtain and keep in force
               ------------------                                          
during the term of this Lease a policy or policies of insurance covering loss or
damage to the Premises and the Building, in the amount of the full replacement
value thereof, providing protection against those perils included within the
classification of "all risk" insurance, plus a policy of rental income insurance
in the amount of one hundred percent (100%) of twelve (12) months rent
(including, without limitation, sums payable as Additional Rent), plus any other
coverages (including earthquake and flood insurance) to the extent recruited
from time to time by Landlord's mortgagee; provided, however, that in no event
shall Tenant be required to pay for the cost of pollution liability insurance.
Tenant shall have no interest in nor any right to the proceeds of any insurance
procured by Landlord on the Premises.  Tenant shall, within thirty (30) days
after receipt of billing, pay to Landlord as additional rent, the full cost such
insurance procured and maintained by Landlord.  Tenant acknowledges that such
insurance procured by Landlord shall contain a deductible which reduces Tenant's
cost for such insurance and, in the event of loss or damage, Tenant shall be
required to pay to Landlord the amount of such deductible, not to exceed Ten
Thousand Dollars ($10,000.00).

     Notwithstanding the foregoing, Tenant shall not be liable for any portion
of any earthquake insurance premium applicable to the Premises which exceeds
three cents ($0.03) per square foot of leasable space within the Premises per
month; except the three cent ($0.03) limit shall be increased on each
anniversary of the Commencement Date by the same percentage increase as the
percentage increase in the Consumer Price Index from the Commencement Date to
such anniversary.  As used herein, the term "Consumer Price Index" means that
Consumer Price Index for All Urban Consumers (all items) as published by the
United States Department of Labor, Bureau of Labor Statistics, for the San
Francisco/Oakland/San Jose Metropolitan Area (1982-1984 = 100 base).

          D.   Tenant's Insurance, Release of Landlord.  Tenant acknowledges
               ---------------------------------------                      
that the insurance to be maintained by Landlord on the Premises pursuant to
Subparagraph 8.C above will not insure any of Tenant's property.  Accordingly,
Tenant, at Tenant's own expense, shall maintain in full force and effect on all
of its fixtures, equipment, leasehold improvements and personal property in the
Premises, a policy of "All Risk" coverage insurance to the extent of at least
ninety percent (90%) of their insurable value.

          E.   Mutual Waiver of Subrogation.  Tenant and Landlord hereby
               ----------------------------                             
mutually waive their respective rights for recovery against each other for any
loss of or damage to the property of either party, to the extent such loss or
damage is insured by any insurance policy required to be maintained by this
Lease or otherwise in force at the time of such loss or damage.  Each party
shall obtain any special endorsements, if required by the insurer, whereby the
insurer waives its right of subrogation against the other party hereto.  The
provisions of this 

                                       6
<PAGE>
 
Subparagraph E shall not apply in those instances in which waiver of subrogation
would cause either party's insurance coverage to be voided or otherwise made
uncollectible.

     9.   Utilities.  Tenant shall pay for all water, gas, light, heat, power,
          ---------                                                           
electricity, telephone, trash pick-up, sewer charges, and all other services
supplied to or consumed on the Premises, and all taxes and surcharges thereon.
In addition, the cost of any utility services supplied to the Outside Area or
not separately metered to the Premises shall be an Outside Area Charge and
Tenant shall pay one hundred percent (100%) of such costs to Landlord as
provided in Paragraph 12 below.

     10.  Repairs and Maintenance.
          ----------------------- 

          A.   Landlord's Repairs.  Subject to the provisions of Paragraph 16,
               ------------------                                             
Landlord shall keep and maintain the exterior roof, structural elements and
exterior walls of the Building in good order and repair.  Landlord shall not,
however, be required to maintain, repair or replace the interior surface of
exterior walls, nor shall Landlord be required to maintain, repair or replace
windows, doors, skylights or plate glass.  Landlord shall have no obligation to
make repairs under this Subparagraph until a reasonable time after receipt of
written notice from Tenant of the need for such repairs.  Tenant shall reimburse
Landlord, as additional rent, within thirty (30) days after receipt of billing,
for the cost of such repairs and maintenance which are the obligation of
Landlord hereunder, provided however, that Tenant shall not be required to
reimburse Landlord for the cost of maintenance and repairs of the structural
elements of the Building unless such maintenance or repair is required because
of the negligence or willful misconduct of Tenant or its employees, agents, or
invitees.  As used herein, the term "structural elements of the Building" shall
mean and be limited to the foundation, footings, floor slab (but not flooring),
structural walls, and roof structure (but not roofing or roof membrane).
Notwithstanding anything in the foregoing to the contrary, if during the term of
this Lease or any extension thereof, the roofing or roof membrane requires
replacement, Landlord shall perform such replacement and Tenant shall pay to
Landlord, as Additional Rent, a fraction of the cost of such replacement, which
fraction shall have its numerator the number of calendar months remaining in the
Lease Term at the time of such replacement and shall have as its denominator one
hundred eighty (180) months.  If Tenant exercises any option to extend the term
of this Lease, then at the commencement of any such option term, Tenant shall
pay to Landlord an additional fraction of the cost of such replacement, which
fraction shall have as its numerator the number of years in the option term in
question, and shall have as its denominator one hundred eighty (180) months.
All payments required of Tenant under this Subparagraph 10.A shall be made
within thirty (30) days after receipt of billing.

          B.   Tenant's Repairs.  Except as expressly provided in Subparagraph
               ----------------                                               
10.A above, Tenant shall, at its sole cost, keep and maintain the entire
Premises and every part thereof, including without limitation, the windows,
window frames, plate glass, glazing, skylights, truck doors, doors and all door
hardware, the walls and partitions, and the electrical, plumbing, lighting,
heating, ventilating and air conditioning systems and equipment in good order,
condition and repair.  The term "repair", shall include replacements,
restorations and/or renewals when necessary as well as painting.  Tenant's
obligation shall extend to all alterations, additions 

                                       7
<PAGE>
 
and improvements to the Premises, and all fixtures and appurtenances therein and
thereto. Tenant shall, at all times during the Lease Term, have in effect a
service contract for the maintenance of the heating, ventilating and air
conditioning ("HVAC") equipment with an HVAC repair and maintenance contractor
approved by Landlord. The HVAC service contract shall provide for periodic
inspection and servicing at least once every three (3) months during the term
hereof, and Tenant shall provide Landlord with a copy of such contract and all
periodic service reports.

     Should Tenant fail to commence any repairs required of Tenant hereunder
forthwith upon five (5) days written notice from Landlord or should Tenant fail
thereafter to diligently complete the repairs, Landlord, in addition to all
other remedies available hereunder or by law and without waiving any alternative
remedies, may make the same, and in that event, Tenant shall reimburse Landlord
as additional rent for the cost of such maintenance or repairs within five (5)
days of written demand by Landlord.

     Landlord shall have no maintenance or repair obligations whatsoever with
respect to the Premises except as expressly provided in Subparagraph 10.A and
Paragraphs 11 and 16.  Tenant hereby expressly waives the provisions of
Subsection 1 of Section 1932 and Sections 1941 and 1942 of the Civil Code of
California and all rights to make repairs at the expense of Landlord as provided
in Section 1942 of said Civil Code.

     Notwithstanding any provision of this Lease to the contrary, Tenant shall
not be responsible for performing or paying for the cost of, and Landlord shall
perform at its sale cost and expense, any and all maintenance, repairs,
replacements, alterations, additions or modifications to the Premises, Building
and/or Outside Areas (i) necessitated by the negligent acts or omissions or
willful misconduct of Landlord or its agents, employees, invitees or
contractors, (ii) necessitated by the occurrence of any insured casualty for
which and to the extent Landlord has received insurance proceeds, (iii) arising
from a failure by Landlord to construct the Premises, Building (including,
without limitation, all HVAC, electrical, plumbing, lighting and other building
systems) and/or Outside Areas in a good and workmanlike manner and in accordance
with applicable laws, rules, codes and regulations existing at the time of their
construction or installation (provided, however, the failure described in this
clause (iii) shall not include or apply to any construction or installation of
any alterations, additions, improvements or replacements by any previous tenant
or subtenant of the Premises); or (iv) for which Landlord has received
reimbursement from others.  Landlord shall use its best efforts to collect such
insurance proceeds and other reimbursements.  If, during the Lease Term, the
HVAC condenser unit requires replacement, Landlord shall replace the same and
Tenant shall pay to Landlord, as additional rent, a fraction of the cost of such
replacement, which fraction shall have as its numerator the number of calendar
months remaining in the Lease Term at the time of such replacement and as its
denominator one hundred twenty (120) months.  If Tenant exercises any option to
extend the term of this Lease, Tenant shall pay to Landlord an additional
fraction of the cost of such replacement, which fraction shall have as its
numerator the number of calendar months in the option term in question and shall
have as its denominator one hundred twenty (120) months.

                                       8
<PAGE>
 
     11.  Outside Area.  Subject to the terms and conditions of this Lease,
          ------------                                                     
Tenant and Tenant's employees, invitees and customers shall, in common with
others entitled to the use thereof, have the non-exclusive right to use the
access roads, parking areas and facilities provided and designated by Landlord
for the general use and convenience of the occupants of the Parcel, which areas
and facilities are referred to herein as "Outside Area."  This right shall
terminate upon the termination of this Lease.  Landlord reserves the right from
time to time to make changes in the shape, size, location, amount and extent of
the outside Area, provided that the same do not (a) interfere with access to or
use of the Premises, Building and/or Outside Areas by Tenant and its agents,
employees, invitees and contractors or (b) reduce the number of parking spaces
located within the Outside Areas and otherwise available for use by Tenant and
its agents, employees, invitees and contractors, unless such reduction is
required by law.  Tenant shall have the exclusive use of all parking spaces and
shipping and loading areas in the Outside Area.  Tenant shall not abandon any
inoperative vehicles or equipment on any portion of the Outside Area.  Tenant
shall make no alterations, improvements or additions to the Outside Area.

     Landlord shall operate, manage, insure, maintain and repair the Outside
Area in good order, condition and repair.  The manner in which the outside Area
shall be maintained and the expenditures for such maintenance shall be at the
discretion of Landlord.  The cost of such repair, maintenance, operation,
insurance and management, including without limitation, maintenance and repair
of landscaping, irrigation systems, paving, sidewalks, fences, and lighting,
shall be a Outside Area Charge and Tenant shall pay to Landlord its share of
such costs as provided in Paragraph 12 below.

     12.  Outside Area Charges.  Tenant shall pay to Landlord, as additional
          --------------------                                              
rent, upon demand but not more often than once each calendar month, an amount
equal to one hundred percent (100%) of the Outside Area Charges as defined in
Subparagraph. 8.B and Paragraphs 9, 11, 13 and 36 of this Lease.  Tenant
acknowledges and agrees that the Outside Area Charges shall include an
additional five percent (5%) of the actual expenditures in order to compensate
Landlord for accounting, management and processing services.  Notwithstanding
the preceding to the contrary, in no event shall any "Outside Area Charge"
include (i) costs incurred by Landlord in performing its obligations under
Paragraph 10.A above, (ii) depreciation, amortization or other expense reserves,
(iii) payments, interest, fees or other charges on debt or rent, fees or other
charges under ground leases, (iv) costs to investigate, remove or otherwise
remediate any Hazardous Material from all or any portion of the Premises,
Building, Outside Area and/or Parcel or the soils and groundwater thereunder,
including, without limitation, any judgments, penalties, clean-up costs,
remediation costs, consulting fees or attorneys' fees.  The preceding sentence
shall not reduce or modify Tenant's obligations under Paragraph 10.A above and
Paragraph 39 below.

     Notwithstanding the foregoing, if during the Lease Term or any extension
thereof, the paving of the parking lot or any other improvement in the Outside
Area requires replacement, and if the replacement will cost more than Five
Thousand Two Hundred Dollars ($5,200.00) and will have a useful life extending
beyond the then remaining Lease Term, then Landlord shall make such replacement
and a fraction of the cost of such replacement shall be included as an Outside
Area Charge for the year of such replacement, which fraction shall have as its
numerator 

                                       9
<PAGE>
 
the number of months then remaining in the Lease Term and shall have as its
denominator one hundred twenty (120) months. If Tenant exercises any option to
extend the term of this Lease, Tenant shall pay to Landlord, at the commencement
of the Option Term in question, an additional fraction of the cost of such
replacement, which additional fraction shall have as its numerator the number of
months in the Option Term in question and shall have as its denominator one
hundred twenty (120) months. As used herein, the "replacement" shall not include
patching or sealing. The cost of patching and sealing shall be an Outside Area
Charge. In no event shall any capital expenditures chargeable to Tenant
hereunder include the five percent (5%) administrative charge.

     13.  Alterations.  Tenant shall not make, or suffer to be made, any
          -----------                                                   
alterations, improvements or additions in, on, about or to the Premises or any
part thereof, without the prior written consent of Landlord (which shall not be
unreasonably withheld or delayed) and without a valid building permit issued by
the appropriate governmental authority.  As a condition to giving such consent,
Landlord may require that Tenant agree to remove any such alterations,
improvements or additions at the termination of this Lease, and to restore the
Premises to their prior condition.  Unless Landlord requires that Tenant remove
any such alteration, improvement or addition, any alteration, addition or
improvement to the Premises, except movable furniture and trade fixtures not
affixed to the Premises, shall become the property of Landlord upon termination
of the Lease and shall remain upon and be surrendered with the Premises at the
termination of this Lease.  Without limiting the generality of the foregoing,
all heating, lighting, electrical (including all wiring, conduit, outlets,
drops, buss ducts, main and subpanels), air conditioning, permanent
partitioning, drapery, and carpet installations made by Tenant regardless of how
affixed to the Premises, together with all other additions, alterations and
improvements that have become an integral part of the Building, shall be and
become the property of the Landlord upon termination of the Lease, and shall
remain upon and be surrendered with the Premises at the termination of this
Lease.

     Notwithstanding the preceding to the contrary, (i) Tenant shall have the
right to make alterations and additions to the interior or the Premises that do
not affect the structural elements of the Building and have a cost of Five
Thousand Dollars ($5,000.00) or less per project without the prior written
approval of Landlord, and (ii) Tenant shall be required to remove only those
alterations and additions which Landlord has, at the time of its approval,
requested Tenant to remove upon expiration of the Lease Term, or which Tenant
has otherwise constructed or installed without the prior approval of Landlord.

     If, during the Lease Term (or any extensions thereof), any alteration,
addition or change of any sort to all or any portion of the Premises is.
required by law, regulation, ordinance or order of any public agency (including,
without limitation, any alterations required by the Americans with Disabilities
Act) by reason of (1) Tenant's use of the Premises, (2) Tenant's obtaining a new
permit or governmental approval (except as provided in Paragraph 10.B), or (3)
Tenant's construction or installation of any leasehold improvements or trade
fixtures (except as provided in Paragraph 10.B), Tenant shall promptly make the
same at its sole cost and expense.  If during the Lease Term (or any extensions
thereof), any alteration, addition, or change to the Outside Area, or to the
Premises for any reason other than for the reasons described in the preceding

                                      10
<PAGE>
 
sentence, is required by law, regulation, ordinance or order of any public
agency, Landlord shall make the same and Tenant shall pay an amount equal to one
and one-half percent (1-1/2%) of the cost of such alteration, addition or change
per month during the remainder of the Lease Term as an Outside Area Charge.
Notwithstanding the preceding sentence to the contrary, any such alteration,
addition or change to a structural element of the Building that is required by
law, regulation, ordinance or order of any public agency shall be made by
Landlord at its sole cost and expense and shall not constitute an Outside Area
Charge.

     14.  Acceptance of the Premises.  By entry and taking possession of the
          --------------------------                                        
Premises pursuant to this Lease, Tenant accepts the Premises as being in good
and sanitary order, condition and repair and accepts the Premises in their
condition existing as of the date of such entry, and Tenant further accepts the
tenant improvements to be constructed by Landlord, if any, as being completed in
accordance with the plans and specifications for such improvements.  Tenant
acknowledges that neither Landlord nor Landlord's agents has made any
representation or warranty as to the suitability of the Premises to the conduct
of Tenant's business.  Any agreements, warranties or representations not
expressly contained herein shall in no way bind either Landlord or Tenant, and
Landlord and Tenant expressly waive all claims for damages by reason of any
statement, representation, warranty, promise or agreement, if any, not contained
in this Lease.  This Lease constitutes the entire understanding between the
parties hereto and no addition to, or modification of, any term or provision of
this Lease shall be effective until set. forth in a writing signed by both
Landlord and Tenant.

     15.  Tenant's Default.
          ---------------- 

          A.   Events of Default.  A breach of this Lease by Tenant shall exist
               -----------------                                               
if any of the following events (hereinafter referred to as "Event of Default")
shall occur:

          (1)  Default in the payment when due of any installment of rent or
other payment required to be made by Tenant hereunder, where such default shall
not have been cured within ten (10) days after written notice of such default is
given to Tenant;

          (2) Tenant's failure to perform any other term, covenant or condition
contained in this Lease where such failure shall have continued for thirty (30)
days after written notice of such failure is given to Tenant or, if such failure
cannot be reasonably cured within said thirty (30) day period, Tenant's failure
to commence such cure within said thirty (30) day period and, thereafter, to
diligently pursue the same to completion;

          (3) Tenant's vacating or abandonment of the Premises for a period
exceeding forty-five (45) days;

          (4) Tenant's assignment of its assets for the benefit of its
creditors;

          (5) The sequestration of, attachment of, or execution on, any
substantial part of the property of Tenant or on any property essential to the
conduct of Tenant's business, shall have occurred and Tenant shall have failed
to obtain a return or release of such property within 

                                      11
<PAGE>
 
sixty (60) days thereafter, or prior to sale pursuant to such sequestration,
attachment or levy, whichever is earlier;

          (6) Tenant or any guartantor of Tenant's obligations hereunder shall
commence any case, proceeding or other action seeking reorganization,
arrangement, adjustment, liquidation, dissolution or composition of it or its
debts under any law relating to bankruptcy, insolvency, reorganization or relief
of debtors, or seek appointment of a receiver, trustee, custodian, or other
similar official for it or for all or any substantial part of its property and
such action or proceeding is not dismissed within sixty (60) days thereafter;

          (7) Tenant or any such guarantor shall take any corporate action to
authorize any of the actions set forth in Clause 6 above; or

          (8) Any case, proceeding or other action against Tenant or any
guarantor of Tenant's obligations hereunder shall be commenced seeking to have
an order for relief entered against it as debtor, or seeking reorganization,
arrangement, adjustment, liquidation, dissolution or composition of it or its
debts under any law relating to bankruptcy, insolvency, reorganization or relief
of debtors, or seeking appointment of a receiver, trustee, custodian or other
similar official for it or for all or any substantial part of its property, and
such case, proceeding or other action (i) results in the entry of an order for
relief against it which is not fully stayed within seven (7) business days after
the entry thereof or (ii) remains undismissed for a period of sixty (60) days.

     B.   Remedies.  Upon any Event of Default, Landlord shall have the
          --------                                                     
following remedies, in addition to all other rights and remedies provided by
law, to which Landlord may resort cummulatively, or in the alternative:

          (1) Recover of Rent.  Landlord shall he entitled to keep this Lease in
              ---------------                                                   
full force and effect (whether or not Tenant shall have abandoned the Premises)
and to enforce all of its rights and remedies under this Lease, including the
right to recover rent and other sums as they become due, plus interest at the
Permitted Rate (as defined in Paragraph 33 below) from the due date of each
installment of rent or other sum until paid.

          (2) Termination.  Landlord may terminate this Lease by giving Tenant
              -----------                                                     
written notice of termination.  On the giving of the notice all of Tenant's
rights in the Premises and the Building and Parcel shall terminate.  Upon the
giving of the notice of termination, Tenant shall surrender and vacate the
Premises in the condition required by Paragraph 34, and Landlord may re-enter
and take possession of the Premises and all the remaining improvements and eject
Tenant or any of Tenant's subtenants, assignees or other person or persons
claiming any right under or through Tenant or eject some and not others or eject
none.  This Lease may also be terminated by a judgment specifically providing
for termination.  Any termination under this paragraph shall not release Tenant
from the payment of any sum then due Landlord or from any claim for damages or
rent previously accrued or then accruing against Tenant.  In no event shall any
one or more of the following actions by Landlord constitute a termination of
this Lease:

               (a)  maintenance and preservation of the Premises;

                                      12
<PAGE>
 
               (b)  efforts to relet the Premises;

               (c) appointment of a receiver in order to protect Landlord's
interest hereunder;

               (d) consent to any subletting of the Premises or assignment of
this Lease by Tenant, whether pursuant to provisions hereof concerning
subletting and assignment or otherwise; or

               (e) any other action by Landlord or Landlord's agents intended to
mitigate the adverse effects from any breach of this Lease by Tenant.

          (3)  Damages.  In the event this Lease is terminated pursuant to
               -------                                                    
Subparagraph 15.B.2 above, or otherwise, Landlord shall be entitled to damages
in the following sums:

               (a) the worth at the time of award of the unpaid rent which has
been earned at the time of termination; plus

               (b) the worth at the time of award of the amount by which the
unpaid rent which would have been earned after termination until the time of
award exceeds the amount of such rental loss that Tenant proves could have been
reasonably avoided;

plus

               (c) the worth at the time of award of the amount by which the
unpaid rent for the balance of the term after the time of award exceeds the
amount of such rental loss that Tenant proves could be reasonably avoided; and

               (d) any other amount necessary to compensate Landlord for all
detriment proximately caused by Tenant's failure to perform Tenant's obligations
under this Lease, or which in the ordinary course of things would be likely to
result therefrom, including, without limitation the following:  (i) expenses for
cleaning, repairing or restoring the Premises; (ii) expenses for altering,
remodeling or otherwise improving the Premises for the purpose of reletting,
including installation of leasehold improvements (whether such installation be
funded by a reduction of rent, direct payment or allowance to the succeeding
lessee, or otherwise); (iii) real estate broker's fees, advertising costs and
other expenses of reletting the Premises; (iv) costs of carrying the Premises
such as taxes and insurance premiums thereon, utilities and security
precautions; (v) expenses in retaking possession of the Premises; (vi)
attorneys' fees and court costs; and (vii) any unamortized real estate brokerage
commission paid in connection with this Lease.

               (e) The "worth at the time of award" of the amounts referred to
in Subparagraphs (a) and (b) of this Paragraph 15.B(3) is computed by allowing-
interest at the Permitted Rate. The "worth at the time of award" of the amounts
referred to in Subparagraph (c) of this Paragraph 15.B(3) is computed by
discounting such amount at the discount rate of the 

                                      13
<PAGE>
 
Federal Reserve Board of San Francisco at the time of award plus one percent
(3.%). The term "rent" as used in this Paragraph 1.5 shall include all sums
required to be paid by Tenant to Landlord pursuant to the terms of this Lease.

     16.  Destruction.  In the event that any portion of the Premises are
          -----------                                                    
destroyed or damaged by any peril not covered by the insurance required to be
carried by Landlord pursuant to the terms Of this Lease, then Landlord shall, at
its sole cost and expense, promptly restore the Premise, and this Lease shall
continue in full force and effect unless Tenant otherwise terminates this Lease
as provided hereinbelow; provided, however, that Landlord shall have the right
to terminate this Lease if the cost of the restoration or repair exceeds ten
percent (10%) of the replacement cost of -the Building, unless Tenant otherwise
agrees to contribute the balance of the Cost of restoration or repair in excess
of said ten percent (10k) amount.

     In the event the Premises are damaged or destroyed from any insured peril
to the extent of fifty percent (50-t) or more of the then replacement cost of
the Premises, Landlord may, upon written notice to Tenant, given within thirty
(30) days after the occurrence of such damage or destruction, elect to terminate
this Lease.  If Landlord does not give such notice in writing within such
period, Landlord shall be deemed to have elected to rebuild or restore the
Premises, i-n which event Landlord shall, at its expense, promptly rebuild or
restore the Premises to their condition prior to the damage or destruction and
Tenant shall pay to Landlord upon commencement of -reconstruction the amount of
any deductible from the insurance policy, not to exceed Ten Thousand Dollars
($10,000.00).

     In the event the Premises are damaged or destroyed from any insured peril
to the extent of less than fifty percent (50%) of the then replacement cost of
the Premises, Landlord shall, at Landlord, s expense, promptly rebuild or
restore the Premises to their condition prior to the damage or destruction and
Tenant :shall pay to Landlord upon commencement of reconstruction the amount of
any deductible from the insurance policy, not to exceed Ten Thousand Dollars
($10,000.00).

     In the event that, pursuant to the foregoing provisions, Landlord is to
rebuild or restore the Premises, Landlord shall, within thirty (30) days after
the occurrence of such damage or destruction, provide Tenant with written notice
               --        
of the time required for such repair or restoration. If such period is longer
than one hundred eighty (180) days from the date of casualty, Tenant may, within
thirty (30) days after receipt of Landlord's notice, elect to terminate the
Lease by giving written notice to Land-lord of such election, whereupon the
Lease shall immediately terminate.  Landlord, s obligation to repair or restore
the Premises shall not include restoration of Tenant's trade fixtures,
equipment, merchandise, or any improvements, alterations or additions made by
Tenant to the Premises.

     Landlord and Tenant shall each have the right to terminate the Lease if (i)
such damage to the Premises occurs during the last year of the term of the Lease
and (ii) it is estimated that necessary repairs will take more than sixty (60)
days from the date of casualty, unless Tenant exercises its option to extend
this Lease within thirty (30) days of the date of casualty.

                                      14
<PAGE>
 
     Unless this Lease is terminated pursuant to the foregoing provisions, this
Lease shall remain in full force and effect; provided, however,'-that from and
after the date of casualty until the repairs or restoration are completed by
Landlord, rent and all other amounts to be paid by Tenant on account of the
Premises and this Lease shall be abated in proportion to the area of the
Premises rendered not reasonably suitable for the conduct of Tenant's business
thereon.  Tenant hereby expressly waives the provisions of Section 1932,
Subdivision 2 and Section 1933, Subdivision 4 of the California Civil Code.

     17.  Condemnation.
          ------------ 

          A.   Definition of Terms.  For the purposes of this Lease, the term
               -------------------                                           
(1) "Taking" means a taking of the Premises or damage to the Premises related to
the exercise of the power of eminent domain and includes a voluntary conveyance,
in lieu of court proceedings, to any agency, authority, public utility, person
or corporate entity empowered to condemn property; (2) "Total Taking" means the
taking of the entire Premises or so much of the Premises as to prevent or
substantially impair the use thereof by Tenant for the uses herein specified;
provided, however, in no event shall a Taking of less than ten percent (10%) of
the Premises he deemed a Total Taking; (3) "Partial Taking" means the taking of
only a portion of the Premises which does not constitute a Total Taking; (4)
"Date of Taking" means the date upon which the title to the Premises, or a
portion thereof, passes to and vests in the condemnor or the effective date of
any order for possession if issued prior to the date title vests in the
condemnor; and (5) "Award" means the amount of any award made, consideration
paid, or damages ordered as a result of a Taking.

          B.   Rights.  The parties agree that in the event of a Taking all
               ------                                                      
rights between them or in and to an Award shall be as set forth herein and
Tenant shall have no right to any Award except as set forth herein.

          C.   Total Taking.  In the event of a Total Taking during the term
               ------------                                                 
hereof (1) the rights of Tenant under the Lease and the leasehold estate of
Tenant in and to the Premises shall cease and terminate as of the Date of
Taking; (2) Landlord shall refund to Tenant any prepaid rent; (3) Tenant shall
pay Landlord any rent or charges due Landlord under the Lease, each prorated as
of the Date of Taking; (4) Tenant shall receive from Landlord those portions of
the Award attributable to trade fixtures of Tenant and for moving expenses of
Tenant; and (5) the remainder of the Award shall be paid to and be the property
of Landlord.

          D.   Partial Taking.  In the event of a Partial Taking during the term
               --------------                                                   
hereof (1) the rights of Tenant under the Lease and the leasehold estate of
Tenant in and to the portion of the Premises taken shall cease and terminate as
of the Date of Taking; (2) from and after the Date of Taking the Monthly
Installment of rent shall be an amount equal to the product obtained by
multiplying the Monthly installment of rent immediately prior to the Taking by a
fraction, the numerator of which is the member of square feet contained in the
Premises after the Taking and the denominator of which is the number of square
feet contained in the Premises prior to the Taking; (3) Tenant shall receive
from the Award the portions of the Award attributable to trade fixtures of
Tenant; and (4) the remainder of the Award shall be paid to and be the property
of 

                                      15
<PAGE>
 
Landlord.  In the event of a Partial Taking of more than ten percent (10%) of
the Premises, Tenant may, within thirty (30) days of notice of such Partial
Taking, terminate this Lease if Tenant, in its sole discretion, determines that
such Partial Taking causes an unacceptable restriction of its use of the
Premises.

     18.  Mechanics' Lien.  Tenant shall (A) pay for all labor and services
          ---------------                                                  
performed for, materials used by or furnished to, Tenant or any contractor
employed by Tenant with respect to the Premises; (B) indemnify, defend, protect
and hold Landlord and the Premises harmless and free from any liens, claims,
liabilities, demands, encumbrances, or judgments created or suffered by reason
of any labor or services performed for, materials used by or furnished to,
Tenant or any contractor employed by Tenant with respect to the Premises; (C) if
the cost of such work is in excess of Five Thousand Dollars ($5,000.00) give
notice to Landlord in writing five (5) days prior to employing any laborer or
contractor to perform services related to, or receiving materials for use upon
the Premises; and (D) permit Landlord to post a notice of nonresponsibility in
accordance with the statutory requirements of California Civil Code Section 3094
or any amendment thereof.  In the event Tenant is required to post an
improvement bond with a public agency in connection with the above, Tenant
agrees to include Landlord as an additional obligee.

     19.  Inspection of the Premises.  Tenant shall permit Landlord and its
          --------------------------                                       
agents to enter the Premises at any reasonable time for the purpose of
inspecting the same, performing Landlord's maintenance and repair
responsibilities, posting a notice of non-responsibility for alterations,
additions or repairs and at any time within one hundred eighty (180) days prior
to expiration of this Lease, to place upon the Premises, ordinary "For Lease" or
"For Sale" signs; provided that Landlord, except in the case of emergency, (i)
shall not enter the Premises without first giving one (1) days notice to Tenant,
(ii) shall be accompanied by an employee of Tenant at all times while in the
Premises, (iii) shall comply with Tenant's security procedures, and (iv) shall
not unreasonably interfere with Tenant's use of the Premises or the conduct of
its business therein.

     20.  Compliance with Laws.  Subject to Paragraphs 10.A, 11, 12 and 13
          --------------------                                            
above, Tenant shall, at its own cost, comply with all of the requirements of all
municipal, county, state and federal authorities now in force, or which may
hereafter be in force, pertaining to the use and occupancy of the Premises, and
shall faithfully observe all municipal, county, state and federal law, statutes
or ordinances now in force or which may hereafter be in force.  The judgment of
any court of competent jurisdiction or the admission of Tenant in any action or
proceeding against Tenant, whether Landlord be a party thereto or not, that
Tenant has violated any such ordinance or statute in the use and occupancy of
the Premises shall he conclusive of the fact that such violation by Tenant has
occurred.

     21.  Subordination.  The following provisions shall govern the relationship
          -------------                                                         
of this Lease to any underlying lease, mortgage or deed of trust which now or
hereafter affects the Premises, the Building and/or the Parcel, or Landlord's
interest or estate therein (the "Project") and any renewal, modification,
consolidation, replacement, or extension thereof (a "Security Instrument").

                                      16
<PAGE>
 
          A.   Priority.  This Lease is subject and subordinate to all Security
               --------                                                        
Instruments existing as of the Commencement Date.  However, if any Lender so
requires, this Lease shall become prior and superior to any such Security
Instrument.

          B.   Subsequent Security Instruments.  At Landlord's election, this
               -------------------------------                               
Lease shall become subject and subordinate to any is Security instrument created
after the Commencement Date, provided that such Lender executes and delivers to
Tenant a recognition and non-disturbance agreement reasonably acceptable to
Tenant providing that Tenant's right to quiet possession of the Premises shall
not be disturbed so long as Tenant is not in default and performs all of its
obligations under this Lease, unless this Lease is otherwise terminated pursuant
to its terms.

          C.   Documents.  Subject to the provisions of this Paragraph 21,
               ---------                                                  
Tenant shall execute any document or instrument required by Landlord or any
Lender to make this Lease either prior or subordinate to a Security Instrument,
which may include such other matters as the Lender customarily requires in
connection with such agreements, including provisions that the Lender not be
liable for (1) the return of the Security Deposit unless the Lender receives it
from Landlord, and (2) any defaults on the part of Landlord occurring prior to
the time that the Lender takes possession of the Project in connection with the
enforcement of its Security instrument.  Tenant's failure to execute any such
document or instrument within ten (10) days after written demand therefor shall
constitute a default by Tenant or, at Landlord's option, Landlord may execute
such documents an behalf of Tenant as Tenant's attorney-in-fact.  Tenant does
hereby make, constitute and irrevocably appoint Landlord as Tenant's attorney-
in-fact to execute such documents in accordance with this Paragraph.

          D.   Tenant's Attornment.  Tenant shall attorn (1) to any purchaser of
               -------------------                                              
the Premises at any foreclosure sale or private sale conducted pursuant to any
security instrument encumbering the Project; (2) to any grantee or transferee
designated in any deed given in lieu of foreclosure; or (3) to the lessor under
any underlying ground lease should such ground lease be terminated, provided
that, in any such event, the party acquiring Landlord's interest in this Lease
assumes in writing all of the obligations of Landlord hereunder to be performed
after such acquisition.

          E.   Lender.  The term "Lender" shall mean (1) any beneficiary,
               ------                                                    
mortgagee, secured party, or other holder of any need of trust, mortgage, or
other written security device or agreement affecting the Project; and (2) any
lessor under any underlying lease under which Landlord holds its interest in the
Project.

     22.  Holding Over.  This Lease shall terminate without further notice at
          ------------                                                       
the expiration of the Lease Term.  Any holding over by Tenant after expiration
shall not constitute a renewal or extension or give Tenant any rights in or to
the Premises except as expressly provided in this Lease.  Any holding over after
the expiration with the consent of Landlord shall be construed to be a tenancy
from month to month, at one hundred twenty-five percent (25%) of the monthly
rent for the last month of the Lease Term, and shall otherwise be on the terms
and conditions herein specified insofar as applicable.

                                      17
<PAGE>
 
     23.  Notices.  Any notice required or desired to be given under this Lease
          -------                                                              
shall be in writing with copies directed as indicated below and shall be
Personally served or given by mail.  Any notice given by mail shall be deemed to
have been given when forty-eight (48) hours have elapsed from the time such
notice was deposited in the United States mails, certified and postage prepaid,
addressed to the party to be served with a copy as indicated herein at the last
address given by that party to the other party under the provisions of this
Paragraph 23.  At the date of execution of this Lease, the address of Landlord
is:

          1710 Zanker Road, Suite 100
          San Jose, CA 95112

and the address of Tenant is:

          Silicon Graphics, Inc.
          2011 N. Shoreline Blvd.
          Mountain View, CA 94039-7311
          Attn:  Legal Services

     24.  Attorneys' Fees.  In the event either party shall bring any action or
          ---------------                                                      
legal proceeding for damages for any alleged breach of any provision of this
Lease, to recover rent or possession of the Premises, to terminate this Lease,
or to enforce, protect or establish any term or covenant of this Lease or right
or remedy of either party, the prevailing party shall he entitled to recover as
a part of such action or proceeding, reasonable attorneys' fees and court costs,
including attorneys, fees and costs for appeal, as may be fixed by the court or
jury.  The term "prevailing party" shall mean the party who received
substantially the relief requested, whether by settlement, dismissal, summary
judgment, judgment, or otherwise.

     25.  Nonssignment.
          ------------ 

          A.   Landlord's Consent Required.  Tenant's interest in this Lease is
               ---------------------------                                     
not assignable, by operation of law or otherwise, nor shall Tenant have the
right to sublet the Premises, transfer any interest of Tenant therein or permit
any use of the Premises by another party, without the prior written consent of
Landlord to such assignment, subletting, transfer or use, which consent Landlord
agrees not to withhold unreasonably subject to the provisions of Subparagraph
25.2 below; provided, however, that the prior written consent of Landlord shall
not be required with respect to any assignment of this Lease and/or subletting
of the Premises (a) to a parent, subsidiary or other affiliate of Tenant, (b) in
connection with the sale of all or substantially all of Tenant's assets, or (c)
in connection with a merger, consolidation, or non-bankruptcy reorganization of
Tenant.  A consent to one assignment, subletting, occupancy or use by another
party shall not be deemed to be a consent to any subsequent assignment,
subletting, occupancy or use by another party.  Any assignment or subletting
without such consent shall be void and shall, at the option of Landlord,
terminate this Lease.

     Landlord's waiver or consent to any assignment or subletting hereunder
shall not relieve Tenant from any obligation under this Lease unless the consent
shall so provide.

                                      18
<PAGE>
 
          B.   Transferee Information Required.  If Tenant desires to assign its
               -------------------------------                                  
interest in this Lease or sublet the Premises, or transfer any interest of
Tenant therein, or permit the use of the Premises by another party (hereinafter
collectively referred to as a "Transfer"), Tenant shall give Landlord at least
ten (10) business days prior written notice of the proposed Transfer and of the
terms of such proposed Transfer, including, but not limited to, the name and
legal composition of the proposed transferee, a financial statement of the
proposed transferee, the nature of the proposed transferee's business to be
carried on in the Premises, the payment to be made or other consideration to be
given to Tenant on account of the Transfer, and such other pertinent information
as may be requested by Landlord, all in sufficient detail to enable Landlord to
evaluate the proposed Transfer and the prospective transferee.  It is the intent
of the parties hereto that this Lease shall confer upon Tenant only the right to
use and occupy the Premises, and to exercise such other rights as are conferred
upon Tenant by this Lease.  The parties agree that this Lease is not intended to
have a bonus value nor to serve as a vehicle whereby Tenant may profit by a
future Transfer of this Lease or the right to use or occupy the Premises as a
result of any favorable terms contained herein, or future changes in the market
for leased space.  It is the intent of the parties that any such bonus value
that may attach to this Lease shall be and remain the exclusive property of
Landlord.  Accordingly, in the event Tenant seeks to Transfer its interest in
this Lease or the Premises, Landlord shall have the following options, which may
be exercised at its sole choice without limiting Landlord in the exercise of any
other right or remedy which Landlord may have by reason of such proposed
Transfer:

               (1) Landlord may consent to the proposed Transfer on the
condition that Tenant agrees to pay to Landlord, as additional rent, fifty
percent (50%) of any and all rents or other consideration (including key money)
received by Tenant from the transferee by reason of such Transfer in excess of
the rent payable by Tenant to Landlord under this Lease (less any brokerage
commissions or advertising expenses incurred by Tenant in connection with the
Transfer). Tenant expressly agrees that the foregoing is a reasonable condition
for obtaining Landlord's consent any Transfer; or

               (2) Landlord may reasonably withhold its consent to the proposed
Transfer.

     26.  Successors.  The covenants and agreements contained in this Lease
          ----------                                                       
shall be binding on the parties hereto and on their respective heirs, successors
and assigns (to the extent the Lease is assignable).

     27.  Mortgage Protection.  In the event of any default on the part of
          -------------------                                             
Landlord, Tenant will give notice by registered or certified mail to any
beneficiary of a deed of trust or mortgagee of a mortgage encumbering the
Premises, whose address shall have been furnished to Tenant, and shall offer
such beneficiary or mortgagee a reasonable opportunity to cure the default,
including time to obtain possession of the Premises by power of sale or judicial
foreclosure, if such should prove necessary to effect a cure.

     28.  Landlord Loan or Sale.  Tenant agrees within ten (10) days following
          ---------------------                                               
request by Landlord to execute and deliver to Landlord any documents, including
estoppel certificates 

                                      19
<PAGE>
 
presented to Tenant by Landlord, (1) certifying that this Lease is unmodified
and in full force and effect and the date to which the rent and other charges
are paid in advance, if any, and (2) acknowledging that there are not, to
Tenant's knowledge, any uncured defaults on the part of Landlord hereunder, and
(3) evidencing the status of the Lease as may be required either by a lender
making a loan to Landlord to be secured by a deed of trust or mortgage covering
the Premises or a purchaser of the Premises from Landlord. Tenant's failure to
deliver an estoppel certificate within ten (10) days following such request
shall be an Event of Default under this Lease. Within ten (10) days following
request by Tenant, Landlord shall execute and deliver to Tenant any documents,
including estoppel certificates presented to Landlord, (i) certifying that the
Lease is unmodified and in full force and effect and the date to which the rent
and other charges are paid in advance, if any, and (ii) acknowledging that there
are not, to Landlord's knowledge, any uncured defaults on the part of Tenant
under the Lease.

     29.  Surrender of Lease Not Merger.  The voluntary or other surrender of
          -----------------------------                                      
this Lease by Tenant, or a mutual cancellation thereof, shall not work a merger
and shall, at the option of Landlord, terminate all or any existing subleases or
subtenants, or operate as an assignment to Landlord of any or all such subleases
or subtenants.

     30.  Waiver.  The waiver by Landlord or Tenant of any breach of any term,
          ------                                                              
covenant or condition herein contained shall not be deemed to be a waiver of
such term, covenant or condition or any subsequent breach of the same or any
other term, covenant or condition herein contained.

     31.  General.
          ------- 

          A.   Captions.  The captions and paragraph headings used in this Lease
               --------                                                         
are for the purposes of convenience only.  They shall not be construed to limit
or extend the meaning of any part of this Lease, or be used to interpret
specific sections.  The word(s) enclosed in quotation marks shall be construed
as defined for purposes of this Lease.  As used in this Lease, the masculine,
feminine and neuter and the singular or plural number shall each be deemed to
include the other whenever the context so requires.

          B.   Definition of Landlord.  The term LANDLORD as used in this Lease,
               ----------------------                                           
so far as the covenants or obligations on part of Landlord are concerned, shall
be limited to mean and include only the owner at the time in question of the fee
title of the Premises, and in the event of any transfer or transfers of the
title of such fee, the Landlord herein named (and in case of any subsequent
transfers or conveyances, the then grantor) shall after the date of such
transfer or conveyance be automatically freed and relieved of all liability with
respect to performance of any covenants or obligations on the part of Landlord
contained in this Lease, thereafter accruing or to be performed by Landlord;
provided that any funds in the hands of Landlord or the then grantor at the time
of such transfer, in which Tenant has an interest, shall be turned over to the
grantee and provided, further, that landlord's successor-in-interest assumes in
writing all of Landlord's obligations under this Lease to be performed or
accruing after the transfer.  It is intended that the covenants and obligations
contained in this Lease on the part of Landlord shall, 

                                      20
<PAGE>
 
subject as aforesaid, be binding upon each Landlord, its heirs, personal
representatives, successors and assigns only during its respective period of
ownership.

          C.   Time of Essence.  Time is of the essence for the performance of
               ---------------                                                
each term, covenant and condition of this Lease.

          D.   Severability.  In case any one or more of the provisions
               ------------                                            
contained herein, except for the payment of rent, shall for any reason be held
to be invalid, illegal or unenforceable in any respect, such invalidity,
illegality or unenforceability shall not affect any other provision of this
Lease, but this Lease shall be construed as if such invalid, illegal or
unenforceable provision had not been contained herein.  This Lease shall be
construed and enforced in accordance with the laws of the State of California.

          E.   Joint and Several Liability.  If Tenant is more than one person
               ---------------------------                                    
or entity, each such person or entity shall be jointly and severally and liable
for the obligations of Tenant hereunder.

          F.   Law.  The term "law" or "laws" shall mean any judicial decision,
               ---                                                             
statute, constitution, ordinance, resolution, regulation, rule, administrative
order, or other requirement of any government agency or authority having
jurisdiction over the parties to this Lease or the Premises or both, in effect
at the Commencement Date of this Lease or any time during the Lease Term,
including, without limitation, any regulation, order, or policy of any quasi-
official entity or body (e.g., board of fire examiners, public utility or
                         ---                                             
special district).

     32.  Sign.  Tenant shall not place or permit to be placed any sign or
          ----                                                            
decoration on the Parcel or the exterior of the Building without the prior
written consent of Landlord which consent shall not be unreasonably withheld or
delayed.  Tenant, upon written notice by Landlord, shall immediately remove any
sign or decoration that Tenant has placed or permitted to be placed on the
parcel or the exterior of the Building without the prior written consent of
Landlord, and if Tenant fails to so remove such sign or decoration within five
(5) days after Landlord's written notice, Landlord may enter upon the Premises
and remove said sign or decoration and Tenant agrees to pay Landlord, as
additional rent upon demand, the cost of such removal.  At the termination of
this Lease, Tenant shall remove any sign which it has placed on the Parcel or
Building and shall repair any damage caused by the installation or removal of
- --------                                                                     
such sign.

     33.  Interest on Past Due Obligations.  Any Monthly Installment of rent or
          --------------------------------                                     
any other sum due from Tenant under this Lease which is received by Landlord
more than thirty (30) days after the date the same is due shall bear interest
from said date until paid, at an annual rate equal to the greater of (the
"Permitted Rate"):  (1) ten percent (10%); or (2) five percent (5%) plus the
rate established by the Federal Reserve Bank of San Francisco, as of the twenty-
fifth (25th) day of the month immediately preceding the due date, on advances to
member banks under Sections 13 and 13(a) of the Federal Reserve Act, as now in
effect or hereafter from time to time amended.  Payment of such interest shall
not excuse or cure any default by Tenant.  In addition, Tenant shall pay all
costs and attorneys' fees incurred by Landlord in collection of such amounts.

                                      21
<PAGE>
 
     34.  Surrender of the Premises.  On the last day of the Term hereof, or on
          -------------------------                                            
the sooner termination of this Lease, Tenant shall surrender the Premises to
Landlord in their condition existing as of the Commencement Date of this Lease,
ordinary wear and tear and casualty and condemnation excepted, with all
originally painted interior walls washed, and other interior walls cleaned, and
repaired or replaced, all carpets shampooed and cleaned, the air conditioning
and heating equipment serviced and repaired by a reputable and licensed service
firm, all floors cleaned and waxed, all to the reasonable satisfaction of
Landlord.  Tenant shall remove all of Tenant's personal property and trade
fixtures from the Premises, and all property not so removed shall be deemed
abandoned by Tenant.  Tenant, at its sole cost, shall repair any damage to the
Premises caused by the removal of Tenant's personal property, machinery and
equipment, which repair shall include, without limitation, the patching and
filling of holes and repair of structural damage.  If the Premises are not so
surrendered at the termination of this Lease, Tenant shall indemnify, defend,
protect and hold Landlord harmless from and against loss or liability resulting
from delay by Tenant in so surrendering the Premises including without
limitation, any claims made by any succeeding tenant or losses to Landlord due
to lost opportunities to lease to succeeding tenants.

     35.  Authority.  The undersigned parties hereby warrant that they have
          ---------                                                        
proper authority and are empowered to execute this Lease on behalf of Landlord
and Tenant, respectively.

     36.  C. C. & R.'s.  This Lease is made subject to all matters of public
          ------------                                                      
record affecting title to the property of which the Premises are a part.  Tenant
shall abide by and comply with all private conditions, covenants and
restrictions of public record now or hereafter affecting the Premises and any
amendment thereof, including, but not limited to, the following:

          A.   Those covenants, conditions and restrictions for the Shoreline
Business Park Regarding Drainage Facilities executed by New England Mutual Life
Insurance Company and recorded June 1, 1979, in Book E535 at page 186, Santa
Clara county Records.

          B.   Those covenants, conditions and restrictions for the Shoreline
Business Park Regarding Architectural Control, Development and Use executed by
New England Mutual Life Insurance Company and recorded on June 1, 1989, in Book
E535 at page 233, Santa Clara County Records.

     All assessments and charges which are imposed, levied or assessed against
the Parcel and Building pursuant to the above-described covenants, conditions
and restrictions shall be a Outside Area Charge and Tenant shall pay its share
of such assessments and charges to Landlord as provided in Paragraph 12 above,
provided, however, that if such assessment or charge relates to a capital
improvement, Tenant shall only be responsible for paying a fraction of the cost
of such reassessment or charge, which fraction shall have as its numerator the
number of calendar months remaining in the Lease Term at the time of such
assessment or charge and shall have as its denominator one hundred twenty (120)
months.

     37.  Brokers.  Each party hereto represents and warrants to Landlord that
          -------                                                             
it has not dealt with any broker respecting this transaction other than Cornish
& Carey Commercial and 

                                      22
<PAGE>
 
hereby agrees to indemnify and hold such other party harmless from and against
any brokerage commission or fee, obligation, claim or damage (including
attorneys' fees) paid or incurred respecting any broker (other than Cornish &
Carey Commercial) claiming through such indemnifying party or with which/whom it
has dealt.

     38.  Limitation on Landlord's Liability.  Tenant, for itself and its
          ----------------------------------                             
successors and assigns (to the extent this Lease is assignable), hereby agrees
that in the event of any actual, or alleged, breach or default by Landlord under
this Lease that:

          A.   Tenant's sole and exclusive remedy against Landlord shall be as
against Landlord's interest in the Building;

          B.   No partner of Landlord shall be sued or named in a party in a
suit or action (except as may be necessary to secure jurisdiction of the
partnership);

          C.   No service of process shall be made against any partner of
Landlord (except as may be necessary to secure jurisdiction of the partnership);

          D.   No partner of Landlord shall be required to answer or otherwise
plead to any service of process;

          E.   No judgment will be taken against any partner of Landlord;

          F.   Any judgment taken against any partner of Landlord may be vacated
and set aside at any time nunc pro tunc;

          G.   No writ of execution will ever be levied against the assets of
any partner of Landlord;

          H.   The covenants and agreements of Tenant set forth in this
Paragraph 38 shall be enforceable by Landlord and any partner of Landlord.

     39.  Hazardous Material.
          ------------------ 

          A.   Definitions.  As used herein, the term "Hazardous Material" shall
               -----------                                                      
mean any substance (a) the presence of which requires investigation or
remediation under any federal, state or local statute, regulation, ordinance,
order, action, policy or common law; (b) which is or becomes defined as a
"hazardous waste," "hazardous substance," pollutant or contaminant under any
federal, state or local statute, regulation, rule or ordinance or amendment
thereto including, without limitation, the Comprehensive Environmental Response,
Compensation and Liability Act (42 U.S.C. Section 9601 et seq.) and/or the
Resource Conservation and Recovery Act (42 U.S.C. Section 6901 et seq.); (c)
which is toxic, explosive, corrosive, flammable, infectious, radioactive,
carcinogenic, mutagenic, or otherwise hazardous and is or becomes regulated by
any governmental authority, agency, department, commission, board, agency or
instrumentality of the United States, the State of California or any political
subdivision thereof; (d) the presence of which on the Premises and/or the Parcel
causes or threatens to cause a nuisance upon the 

                                      23
<PAGE>
 
Premises and/or the Parcel or to adjacent properties or poses or threatens to
pose a hazard to the health or safety of persons on or about the Premises and/or
the Parcel; (e) the presence of which on adjacent properties could constitute a
trespass; (f) without limitation which contains gasoline, diesel fuel or other
petroleum hydrocarbons; (g) without limitation which contains polychlorinated
biphenyls (PCBs), asbestos or urea formaldehyde foam insulation; or (h) without
limitation radon gas.

          B.   Use Restriction.  Subject to the terms and conditions set forth
               ---------------                                                
herein, Tenant shall be permitted to use and store in the Premises those
materials described in Paragraph H below, in the quantities set forth in said
Paragraph and such other Hazardous Materials and quantities of Hazardous
Materials that Landlord may approve in writing from time to time, which approval
Landlord may withhold on grant in its sole discretion.  Except as specifically
allowed in this Lease, Tenant shall not cause or permit any Hazardous Material
to be used, stored, generated, discharged, transported to or from, or disposed
of in or about the Premises, the Building, the Parcel and/or the outside Area.
The presence of any Hazardous Material caused by Tenant or its agents,
employees, invitees or contractors that is not permitted by this Lease in or
about the Premises shall be deemed an event of default under Paragraph 15 above.
Without limiting the generality of the foregoing, Tenant, at its sole cost,
shall comply with all laws relating to the storage, use, generation, transport,
discharge and disposal by Tenant or its agents, employees, invitees or
contractors of any Hazardous Material.  If the presence of any Hazardous
Material on the Premises caused by Tenant or its agents, employees, invitees or
contractors results in contamination of the Premises, the Building, the Parcel
and/or the Outside Area or any soil, air, ground or surface waters under,
through, over, on, in or about the Premises, the Building, the Parcel and/or
Outside Area, Tenant, at its expense, shall promptly take all actions necessary
to return the Premises, the Building, the Parcel and/or the Outside Area to the
condition existing prior to the appearance of such to reduce the presence of
such Hazardous Hazardous Material (action Level') at which any federal, Material
to below the regulation, ordinance, rule, order, state or local statute, law,
action or policy requires investigation, testing, monitoring, containment,
clean-up , remuneration, response or other action. if the Action Level is
reduced at any time prior to the date three years following the termination of
this Lease, Tenant shall be obligated (even after the termination of this Lease)
to take all actions required to reduce the presence of such Hazardous Material
to below such new Action Level.

     Tenant shall defend, protect, hold harmless and indemnify Landlord and its
agents and employees with respect to all actions, claims, losses, fines,
penalties, fees, costs, damages and liabilities (including, but not limited to,
attorneys' and consultants' fees) arising out of or in connection with any
Hazardous Material used, generated, discharged, transported to or from, stored,
or disposed of by Tenant or its agents, employees, invitees or contractors in,
on, under, over, through or about the Premises and/or the Parcel.  Tenant shall
not suffer any lien to be recorded against the Premises as a consequence of any
Hazardous Material, including any so called state, federal or local "super fund"
lien related to the "clean up" of any Hazardous Material in, over, on, under,
through, or about the Premises.

     Notwithstanding any provision of this Paragraph 39 to the contrary, in no
event shall Tenant be responsible to Landlord for the presence of any Hazardous
Material in, on, under,

                                      24
<PAGE>
 
over, through or about the Premises and/or Parcel not caused by Tenant or its
agents, employees, invitees or contractors.

          C.   Compliance.  Ten . ant shall immediately notify Landlord of any
               ----------                                                     
inquiry, test, investigation, enforcement proceeding by or against Tenant or the
Premises concerning any Hazardous Material.  Any remediation plan prepared by or
on behalf of Tenant must be submitted to Landlord prior to conducting any work
pursuant to such plan and prior to submittal to any applicable government
authority and shall be subject to Landlord's consent, which approval shall not
be unreasonably withheld or delayed.

          D.   Assignment and Subletting.  It shall not be unreasonable for
               -------------------------                                   
Landlord to withhold its consent to any proposed assignment or subletting if (i)
the proposed assignee's or subtenant's anticipated use of the Premises involves
the storage, generation, discharge, transport, use or disposal of any Hazardous
Material not described in Subparagraph H below or not approved in writing by
Landlord pursuant to Subparagraph B above; (ii) if the proposed assignee or
subtenant has been required by any prior landlord, lender or governmental
authority to "clean up" or remediate any Hazardous Material (with associated
costs in excess of $50,000.00) and such proposed assignee or subtenant is not a
Fortune 500 Company; (iii) if the proposed assignee or subtenant is subject to
investigation or enforcement order or proceeding by any governmental authority
in connection with the use, generation, discharge, transport, disposal or
storage of any Hazardous Material (with associated costs in excess of
$50,000.00) and such proposed assignee or subtenant is not a Fortune 500
Company.

          E.   Surrender.  Upon the expiration or earlier termination of the
               ---------                                                    
Lease, Tenant, at its sole cost, shall remove all Hazardous Materials from the
Premises and the Parcel which Tenant introduced to the Premises and/or Parcel.
If Tenant fails to so surrender the Premises and Parcel, Tenant shall indemnify,
protect, defend and hold Landlord harmless from and against all damages
resulting from Tenant's failure to surrender the Premises as required by this
Paragraph, including, without limitation, any actions, claims, losses,
liabilities, fees (including, but not limited to, attorneys' and consultants'
fees), fines, costs, penalties, or damages in connection with the condition of
the Premises including, without limitation, damages occasioned by the inability
to relet the Premises or a reduction in the fair market and/or rental value of
the Premises by reason of the existence of any Hazardous Material in, on, over,
under, through or around the Premises.

          F.   Right to Appoint Consultant.  Landlord shall have the right to
               ---------------------------                                   
appoint a consultant to conduct an investigation to determine whether any
Hazardous Material is being used, generated, discharged, transported to or from,
stored or disposed of in, on, over, through, or about the Premises, in
accordance with this Section 39.  Any entry onto the Premises by such consultant
shall be subject to the provisions of Paragraph 19 above.  If the consultant
determines that Tenant is not in compliance with applicable laws, rules and
regulations regarding the use, storage, generation, disposal or transportation
of Hazardous Materials of, to or from the Premises and/or Parcel, then Tenant
shall reimburse Landlord for the cost of such consultant.  Tenant, at its
expense, shall comply with all reasonable recommendations of the consultant.

                                      25
<PAGE>
 
          G.   Holding Over.  If any action of any kind is required or requested
               ------------                                                     
to be taken by any governmental authority to clean-up, remove, remediate or
monitor any Hazardous Material from the Premises and/or Parcel caused by Tenant
or its agents, employees, invitees or contractors and such action is not
completed prior to the expiration or earlier termination of the Lease, Tenant
shall be deemed to have impermissibly held over until such time as such required
action is completed, and Landlord shall be entitled to all damages directly or
indirectly incurred in connection with such holding over, including without
limitation, damages occasioned by the inability to re-let the Premises or a
reduction of the fair market and/or rental value of the Premises.

          H.   Permitted Materials.  Limited quantities of substances typically
               -------------------                                             
used in connection with general office uses, such as ordinary office supplies
and janitorial products.

          I.   Landlord's Indemnity.  Landlord shall defend, protect, hold
               --------------------                                       
harmless and indemnify Tenant from and against all claims, fines, penalties,
damages, government orders, losses, liabilities, costs and expenses (including
attorneys' fees) arising out of (i) any Hazardous Material used, generated,
discharged, transported to or from, stored disposed of in, on or under the
Premises and/or Parcel by Landlord or its agents, employees or contractors or
(ii) any Hazardous Material which was present in, on, under, over, through or
about the Premises and/or Parcel (including the soils and groundwater
thereunder) as of the Commencement Date of this Lease except to the extent
introduced to the Premises and/or Parcel by any act or omission.

          J.   Provisions Survive Termination.  The provisions of this Paragraph
               ------------------------------                                   
39 shall survive the expiration or termination of this Lease.

          K.   Controlling Provisions.  The provisions of this Paragraph 39 are
               ----------------------                                          
intended to govern the rights and liabilities of the Landlord and Tenant
hereunder respecting Hazardous Materials to the exclusion of any other
provisions in this Lease that might otherwise be deemed applicable.  The
provisions of this Paragraph 39 shall be controlling with respect to any
provisions in this Lease that are inconsistent with this Paragraph 39.

     40.  Option to Extend.
          ---------------- 

          (a) Provided that Tenant is not in default under this Lease at the
time of exercise of the hereinafter described option or at the time of
termination of the then existing term of this Lease, as the case may be, Tenant
shall have one option to extend the term of this Lease for a period of three (3)
years (the "Option Term").  Said option shall be exercised only by written
notice delivered to Landlord not later than one hundred eighty (180) days prior
to the expiration date of the then existing term of this Lease.  In all
respects, the terms, covenants and conditions of this Lease shall remain
unchanged during the Option Term, except that the Monthly Installment of rent
payable during the Option Term shall be as specified in Subparagraph (b) below,
and except that there shall be no further option to extend the term of this
Lease at the end of the Option Term.

          (b) The Monthly Installment of rent payable during the Option Term
shall be the sum of Eighty Thousand Three Hundred Forty-Three Dollars
($80,343.00) per month.

                                      26
<PAGE>
 
     41.  Landlord's Default.  If Landlord fails to perform its obligations
          ------------------                                               
under this Lease within thirty (30) days following written notice from Tenant,
Tenant may perform Landlord's obligations at Landlord's expense, and Landlord
shall reimburse Tenant for the cost of such performance within thirty (30) days
after receipt of billing; provided, however, if the nature of Landlord's failure
reasonably requires more than thirty (30) days to cure, the Landlord shall not
be in default so long as it commences to cure the default within said thirty
(30) day period and thereafter diligently continues to Cure the default.

     IN WITNESS WHEREOF, the parties have executed this Agreement on the dates
set forth below.

                                         TENANT:

                                         SILICON GRAPHICS, INC.,

                                         a Delaware corporation

Dated:________________                   By:__________________________________
                                         Name:________________________________
                                         Title:  Senior V.P., Administration

                                         LANDLORD:

                                         SHORELINE INVESTMENTS VI.,

                                         a California general partnership

Dated:________________                   By:__________________________________
                                         Name:________________________________
                                         Title:  General Partner

Dated:________________                   By:__________________________________
                                         Name:
                                         Title:  General Partner

                                      27
<PAGE>
 
                                   EXHIBIT A

                               [INSERT GRAPHIC]

                            SHORELINE BUSINESS PARK
                               SITE MASTER PLAN
                               MOUNTAIN VIEW, CA
<PAGE>
 
                                   EXHIBIT B


                                   SITE PLAN

                                INSERT GRAPHIC

                                   EXHIBIT C

                              CONSENT TO SUBLEASE

     This Consent to Sublease is made to be effective as of September __, 1998
by, between and among SHORELINE INVESTMENTS VI, a California general partnership
("Master Lessor"), SILICON GRAPHICS, INC., a Delaware corporation ("Sublessor"),
and VERISIGN, INC., a Delaware corporation ("Sublessee") with reference to the
following facts, understandings and intentions:

     A.   Sublessor is leasing from Master Lessor those certain premises
consisting of approximately 51,834 square feet of space commonly known as 1350
Charleston Road, Mountain View, California (the "Premises"), on the terms and
subject to the conditions of that certain Lease Agreement executed on June 14,
1996 (the "Master Lease").

     B.   Sublessor desires to sublease the Premises to Sublessee, and Sublessee
desires to sublease the Premises from Sublessor, on the terms and conditions set
forth in the Sublease Agreement of even date herewith (the "Sublease").  A copy
of the Sublease is attached hereto as Attachment 1 and incorporated herein by
                                      ------------                           
reference.

     C.   Sublessor and Sublessee now desire to obtain the consent of Master
Lessor to the Sublease as required by the Master Lease.

     NOW, THEREFORE, the Master Lessor, Sublessor and Sublessee agree as
follows:

     1.   Master Lessor hereby consents to the execution and delivery of the
Sublease by and between Sublessor and Sublessee and to the subletting of the
Premises by Sublessor to Sublessee. Master Lessor's consent to the Sublease does
not constitute approval by Master Lessor of any of the provisions of the
Sublease, and neither the Sublease nor Master Lessor's consent thereto shall be
deemed to alter, amend or otherwise modify any of the terms or provisions of the
Master Lease.

     2.   The Sublease is and shall be at all times subject and subordinate to
the Master Lease and all of the provisions, covenants and conditions thereof.

     3.   Neither the Sublease nor Master Lessor's consent thereto shall release
or discharge Sublessor from any liability under the Master Lease and Sublessor
shall remain primarily liable 
<PAGE>
 
and responsible for the full performance and observance of all the provisions,
covenants and conditions set forth in the Master Lease on the part of Sublessor
to be performed and observed.

     4.   This Consent by Master Lessor shall not be construed as a consent by
Master Lessor to any further subletting either by Sublessor or Sublessee. The
Sublease may not be assigned nor shall the Premises be further sublet without
the prior written consent of Master Lessor in each instance in accordance with
the terms of the Master Lease.

     5.   So long as the Master Lease is not in default, Master Lessor agrees to
furnish all services, maintenance and repairs to the Premises which are the
obligations of the Master Lessor under the Master Lease, and to comply with all
obligations and covenants under the Master Lease with respect to Sublessee as if
Sublessee were the tenant thereunder.

     6.   In addition to the notice requirements under the Master Lease, Master
Lessor agrees to provide Sublessee with written notice of any default by
Sublessor of any obligations under the Master Lease and agrees to accept any
cure thereof tendered by Sublessee. Such notice or demand shall be given or
served in writing in accordance with the terms of the Master Lease at the
address of Sublessee set forth in the Sublease. Sublessee may change such
address by delivering written notice thereof to Master Lessor by certified or
registered mail.

     7.   Pursuant to Paragraph 25 of the Master Lease, Sublessor has agreed to
pay to Master Lessor, as Additional Rent under the Master Lease, fifty percent
(50%) of any and all rents or other consideration (including key money) received
by Sublessor from the Sublessee by reason of the Sublease in excess of the rent
payable by Sublessor to Master Lessor under the Master Lease (less any brokerage
incurred by Sublessor in connection with the Sublease). Accordingly, provided
that the Sublease remains unmodified, in full force and effect and that the rent
thereunder is paid in full and not abated, Sublessor shall pay to Master Lessor,
within five (5) days following receipt of the monthly rent from Sublessee, the
following respective sums during the following respective time periods as
Additional Rent pursuant to this paragraph:

                 TIME PERIOD            AMOUNT OF ADDITIONAL RENT
                 -----------            -------------------------

             01/01/99 - 03/31/99                $     0      
             04/01/99 - 04/30/99                 12,959
             05/01/99 - 12/31/99                 38,876
             01/01/00 - 12/31/00                 41,091
             01/01/01 - 12/31/01                 43,374
             01/01/02 - 06/30/02                 45,725
             07/01/02 - 12/31/02                 40,541
             01/01/03 - 12/31/03                 42,963
             01/01/04 - 12/31/04                 45,457
             01/01/05 - 06/30/05                 48,025

                                      30
<PAGE>
 
     8.   Sublessor and Sublessee represent and warrant to Master Lessor that
there are no additional payments of rent or consideration of any type payable by
Sublessee to Sublessor with regard to the Premises other than as disclosed in
the Sublease, a true and complete copy of which is attached hereto as Attachment
                                                                      ----------
1 and incorporated herein by this reference.
- -                                           

     9.   Master Lessor represents and warrants that as of the date hereof, to
Master Lessor's actual knowledge, Sublessor is not in breach or default under
the Master Lease and no event has occurred which, with notice, or time, or both,
would constitute such a breach or default.

     10.  Master Lessor's right under Section 25(B)(1) of the Master Lease to
condition its consent to a Transfer of the Premises on Sublessor's agreement to
pay Master Lessor fifty percent (50%) of the "bonus rent" received by Sublessor,
shall mean, in the event of a Transfer of the Sublease by Sublessee, fifty
percent (50%) of the amounts received by Sublessor from Sublessee under Section
15 of the Sublease.

     11.  This Consent may be executed in two or more counterparts, each of
which shall be deemed an original, but all of which together shall constitute
one agreement.

     12.  This Consent shall be binding upon and inure to the benefit of the
parties hereto and their respective successors and assigns.

                                      31
<PAGE>
 
     IN WITNESS WHEREOF, the parties have executed this Consent to Sublease as
of the respective dates set forth below.

  SUBLESSEE:                       VERISIGN, INC., a Delaware corporation

                                   By: _____________________________________

                                   Name: ___________________________________

                                   Title: __________________________________

                                   Date: ___________________________________

  SUBLESSOR:                       SILICON GRAPHICS, INC.,
                                   a Delaware corporation

                                   By: _____________________________________

                                   Name: ___________________________________

                                   Title: __________________________________

                                   Date: ___________________________________

  MASTER LESSOR:                   SHORELINE INVESTMENTS VI,
                                   a California general partnership

                                   By: _____________________________________

                                   Name: ___________________________________

                                   Title: __________________________________

                                   Date: ___________________________________

                                      32
<PAGE>
 
                                   EXHIBIT D


                     [MAP DISPLAYING LOCATION OF PREMISES]

                                        

<PAGE>
 
                                                                   EXHIBIT 23.02
                               
                            CONSENT OF KPMG LLP     
 
The Board of Directors
VeriSign, Inc.:
 
  We consent to the use of our reports included herein and to the reference to
our firm under the headings "Selected Consolidated Financial Data" and
"Experts" in the prospectus.
                                             
                                          KPMG LLP     
 
Mountain View, California
   
January 14, 1999     


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