SECURITY DYNAMICS TECHNOLOGIES INC /DE/
10-Q, 1997-08-12
COMPUTER PERIPHERAL EQUIPMENT, NEC
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<PAGE>   1
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 10-Q

(Mark One)
[X]           Quarterly report pursuant to Section 13 or 15 (d) of the
              Securities Exchange Act of 1934

              For the quarterly period ended June 30, 1997

                                       OR

[ ]           Transition report pursuant to Section 13 or 15 (d) of the
              Securities Exchange Act of 1934


                         Commission File Number: 0-25120

                      SECURITY DYNAMICS TECHNOLOGIES, INC.
             (Exact Name of Registrant as Specified in Its Charter)

               DELAWARE                               04-2916506
    (State or Other Jurisdiction                   (I.R.S. Employer
  of Incorporation or Organization)               Identification No.)


                                 20 CROSBY DRIVE
                                BEDFORD, MA 01730
                    (Address of Principal Executive Offices)

       Registrant's Telephone Number, Including Area Code: (617) 687-7000
     -----------------------------------------------------------------------



Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the registrant was
required to file such reports), and (2) has been subject to such filing
requirements for the past 90 days:

                               Yes    X    No
                                   -------     -------

As of July 31, 1997, there were 37,815,552 shares of the Registrant's Common 
Stock, $.01 par value per share, outstanding.


<PAGE>   2

                      SECURITY DYNAMICS TECHNOLOGIES, INC.
                                    FORM 10-Q
                FOR THE THREE AND SIX MONTHS ENDED JUNE 30, 1997
                                TABLE OF CONTENTS


                                                                            PAGE
                                                                            ----
PART I.         FINANCIAL INFORMATION
Item 1.         Financial Statements

                Condensed Consolidated Balance Sheets as of
                June 30, 1997 (unaudited) and December 31,                   
                1996                                                         3

                Condensed Consolidated Statements of Income
                for the Three and Six Months Ended June 30,
                1997 and 1996 (unaudited)                                    4

                Condensed Consolidated Statements of Cash
                Flows for the Six Months Ended June 30, 1997
                and 1996 (unaudited)                                         5

                Notes to Condensed Consolidated Financial                    
                Statements                                                   6

Item 2.         Management's Discussion and Analysis of
                Financial Condition and Results of Operations                9

PART II.        OTHER INFORMATION

Item 4.         Submission of Matters to a Vote of Security                  
                Holders                                                      16

Item 6.         Exhibits and Reports on Form 8-K                             17

                Signature                                                    18

                Exhibit Index                                                19



                                       2
                                       -
<PAGE>   3



PART I. FINANCIAL INFORMATION
ITEM 1. FINANCIAL STATEMENTS

              SECURITY DYNAMICS TECHNOLOGIES, INC. AND SUBSIDIARIES
                      CONDENSED CONSOLIDATED BALANCE SHEETS
                        (IN THOUSANDS, EXCEPT SHARE DATA)

<TABLE>
<CAPTION>
                                                                 JUNE 30, 1997         DECEMBER 31, 1996
                                                               -----------------       -----------------
                                                                  (Unaudited)
<S>                                                                 <C>                     <C>
 ASSETS
 Current assets:
    Cash and equivalents                                            $ 21,828                $  9,512
    Marketable securities                                             86,437                  95,320
    Accounts receivable (less allowance for doubtful
         accounts of $550 in 1997 and $527 in 1996)                   17,391                  13,293
    Inventory                                                          3,189                   2,606
    Prepaid expenses and other                                         5,837                   4,204
    Deferred taxes                                                       304                      --
                                                                    --------                --------
           Total current assets                                      134,986                 124,935
                                                                    --------                --------

Property and equipment - net                                          12,319                  10,108
                                                                    --------                --------

Other:
     Investments                                                       2,187                   2,924
     Capitalized software cost, net and purchased technology             139                     197

     Deferred taxes                                                    1,026                   1,026
     Other                                                               943                     752
                                                                    --------                --------
                Total Other                                            4,295                   4,899
                                                                    --------                --------
Total                                                               $151,600                $139,942
                                                                    ========                ========

<CAPTION>
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:

<S>                                                                 <C>                     <C>
     Accounts payable                                               $  4,019                $  5,119
     Accrued payroll and related benefits                              5,172                   4,465
     Accrued expenses and other                                        3,121                   2,187
     Income taxes payable                                                 --                      51
     Deferred revenue                                                  4,181                   4,877
     Deferred taxes                                                       --                     603
                                                                    --------                --------
           Total current liabilities                                  16,493                  17,302
                                                                    --------                --------

Minority interests                                                     2,578                   1,194
                                                                    --------                --------

Commitments and contingencies

Stockholders' equity:
       Common stock, $.01 par value; authorized, 80,000,000 shares; issued,
            35,055,430 shares in 1997 and 34,389,593 shares in 1996;
            outstanding, 35,054,921 shares in 1997 and 34,389,297                          
            shares in 1996                                               351                     344
     Additional paid-in capital                                      103,668                 101,424
     Retained earnings                                                26,651                  16,420
     Deferred stock compensation                                        (141)                   (174)
     Treasury stock, common, at cost,
         509 shares in 1997 and 296 shares in 1996                        --                      --
     Cumulative translation adjustment                                  (127)                    (48)
     Unrealized gain on marketable securities - net                    2,127                   3,480
                                                                    --------                --------
            Total stockholders' equity                               132,529                 121,446
                                                                    --------                --------

   Total                                                            $151,600                 139,942
                                                                    ========                ========
</TABLE>

See notes to condensed consolidated financial statements.

                                       3
                                       -
<PAGE>   4









              SECURITY DYNAMICS TECHNOLOGIES, INC. AND SUBSIDIARIES
             CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)
                      (IN THOUSANDS, EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>

                                              Three Months Ended             Six Months Ended
                                                  June 30,                       June 30,
                                           ------------------------      ------------------------
                                              1997          1996            1997          1996
                                           ----------     ---------      ---------     ----------

<S>                                         <C>            <C>            <C>            <C>
Revenue                                     $29,662        $17,421        $56,097        $32,283

Cost of revenue                               6,201          3,647         12,241          7,161
                                            -------        -------        -------        -------

Gross profit                                 23,461         13,774         43,856         25,122
                                            -------        -------        -------        -------

Costs and expenses:
    Research and development                  4,050          2,315          7,530          4,360
    Marketing and selling                     8,876          5,144         16,534          9,584
    General and administrative                3,161          2,890          6,120          5,618
                                            -------        -------        -------        -------
         Total                               16,087         10,349         30,184         19,562
                                            -------        -------        -------        -------

Income from operations                        7,374          3,425         13,672          5,560

Interest and other income                     1,376          1,214          2,649          2,483
                                            -------        -------        -------        -------

Income before provision for income            
taxes                                         8,750          4,639         16,321          8,043
Provision for income taxes                    3,248          1,755          6,090          2,991
                                            -------        -------        -------        -------

Net income                                  $ 5,502        $ 2,884        $10,231        $ 5,052
                                            =======        =======        =======        =======

Net income per common and
common equivalent share                     $  0.15        $  0.08        $  0.28        $  0.14
                                            =======        =======        =======        =======


Weighted average number of common
and common equivalent shares outstanding     36,629         36,604         36,581         36,398
                                            =======        =======        =======        =======
</TABLE>

See notes to condensed consolidated financial statements.


                                       4
                                       -
<PAGE>   5






              SECURITY DYNAMICS TECHNOLOGIES, INC. AND SUBSIDIARIES
           CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)
                                 (IN THOUSANDS)

<TABLE>
<CAPTION>
                                                                              Six Months Ended June 30,
                                                                          ---------------------------------
                                                                                1997             1996
                                                                          ---------------    --------------

<S>                                                                            <C>              <C>
Cash flows from operating activities:
    Net income                                                                 $ 10,231         $  5,052
    Adjustments to reconcile net income to net cash
    provided by (used for) operating activities:
           Deferred taxes                                                           (10)            (108)
           Depreciation and amortization                                          1,398              834
           Stock compensation                                                        33              166
           Increase (decrease) in cash from changes in:
            Accounts receivable                                                  (4,293)          (3,258)
            Inventory                                                              (583)            (920)
            Prepaid expenses and other                                             (536)          (1,441)
            Accounts payable                                                     (1,091)           2,083
            Accrued  payroll and related benefits                                   736             (577)
           Accrued expenses and other                                               932             (220)
            Income taxes payable                                                   (946)            (324)
            Deferred revenue                                                       (696)            (464)
                                                                               --------         --------
                   Net cash provided by operating activities                      5,175              823
                                                                               --------         --------

Cash flows from investing activities:
      Purchases of marketable securities                                        (48,027)         (75,052)
      Proceeds from sales and maturities of marketable securities                55,628           36,382
      Purchases of property and equipment                                        (3,853)          (2,544)
      Investments and other                                                        (143)          (1,382)
                                                                               --------         --------
                   Net cash provided by (used for) investing activities           3,605          (42,596)
                                                                               --------         --------

Cash flows from financing activities:
      Proceeds from exercise of stock options                                     2,261              541
      Proceeds from the sale of minority interests                                1,384               --
                                                                               --------         --------
                   Net cash provided by financing activities                      3,645              541
                                                                               --------         --------

Effects of exchange rate changes on cash and equivalents                         (109))              (37)
                                                                               --------         --------

Net increase (decrease) in cash and equivalents                                  12,316          (41,269)
Cash and equivalents, beginning of period                                         9,512           49,284
                                                                               --------         --------
Cash and equivalents, end of period                                            $ 21,828         $  8,015
                                                                               ========         ========

</TABLE>



See notes to condensed consolidated financial statements.


                                       5
                                       -
<PAGE>   6





              SECURITY DYNAMICS TECHNOLOGIES, INC. AND SUBSIDIARIES
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                   (UNAUDITED)
                      (IN THOUSANDS, EXCEPT PER SHARE DATA)


1.     Basis of Presentation

              The accompanying unaudited condensed consolidated financial
       statements include the accounts of Security Dynamics Technologies, Inc.
       (the "Company") and its wholly owned subsidiaries and have been prepared
       pursuant to the rules and regulations of the Securities and Exchange
       Commission regarding interim financial reporting. Accordingly, they do
       not include all of the information and notes required by generally
       accepted accounting principles for complete financial statements and
       should be read in conjunction with the audited consolidated financial
       statements included in the Company's Annual Report on Form 10-K for the
       year ended December 31, 1996.

              In the opinion of management, the accompanying unaudited condensed
       consolidated financial statements have been prepared on the same basis as
       the audited consolidated financial statements, and include all
       adjustments, consisting only of normal recurring adjustments, necessary
       for a fair presentation of the results of the interim periods presented.
       The operating results for the interim periods presented are not
       necessarily indicative of the results expected for the full year.

              In July 1996, the Company completed a merger (the "Merger") with
       RSA Data Security, Inc. ("RSA"). The Merger has been accounted for as a
       pooling of interests, and therefore the consolidated financial statements
       for all periods prior to the Merger have been restated to include the
       accounts and operations of RSA with those of the Company.

2.     Income Per Common Share

              Income per common share is computed using the weighted average
       number of common and common equivalent shares outstanding during each
       period presented.

              In February 1997, the Financial Accounting Standards Board issued
       Statement No. 128 ("SFAS No. 128"), "Earnings per Share", which is
       required to be adopted in the fourth quarter of 1997. At that time, the
       Company will be required to change the method currently used to compute
       earnings per share and to restate all prior periods. SFAS No. 128
       supersedes Accounting Principles Board Opinion No. 15 and is intended to
       simplify the computation of earnings per share and to make the U.S.
       computations more comparable with international computations. The pro
       forma basic and diluted earnings per share (as defined by SFAS No. 128)
       for the three and six months ended June 30, 1997 would have been $0.16
       and $0.15 and $0.29 and $0.28, respectively, and for the three and six
       months ended June 30, 1996 would have been $0.08 and $0.08 and $0.15 and
       $0.14, respectively.

                                       6
                                       -
<PAGE>   7



3.     Income Taxes

              The Company provides for income taxes at the end of each interim
       period based on the estimated effective tax rate for the full year.
       Cumulative adjustments to the tax provision are recorded in the interim
       period in which a change in the estimated annual effective rate is
       determined.

              Cash payments for income taxes were approximately $3,811 and
       $6,953 for the three and six months ended June 30, 1997 and $2,396 and
       $3,675 for the three and six months ended June 30, 1996, respectively.

4.     Subsequent Events

              On July 15, 1997 (the "Effective Date"), the Company acquired
       DynaSoft AB ("DynaSoft"), a leading provider of security solutions for
       protecting access to corporate information and applications. The Company
       issued or reserved for issuance approximately 2.7 million shares of
       Common Stock in exchange for approximately 95% of the outstanding shares
       and certain of the outstanding options to acquire shares of DynaSoft. The
       Company also paid approximately $6 million to certain stockholders of
       DynaSoft in exchange for the remaining outstanding shares and options.
       Based on the closing price of the Company's Common Stock on the Nasdaq
       National Market on July 14, 1997, the transaction is valued at
       approximately $115 million. The transaction will be accounted for as a
       pooling of interests. The Company used authorized, but previously
       un-issued, shares of Common Stock in the acquisition. The number of
       shares of the Company's Common Stock issued in exchange for DynaSoft's
       shares was determined in an "arm's length" negotiation and the
       transaction was unanimously approved by the Boards of Directors of the
       Company and DynaSoft.

              In connection with the transaction, the Company and certain United
       States stockholders of DynaSoft entered into a Registration Rights
       Agreement, dated as of July 15, 1997, pursuant to which the Company has
       agreed to file a Registration Statement on Form S-3, on or prior to the
       40th day following the Effective Date, for the purpose of registering
       under the Securities Act of 1933 the shares of Common Stock of the
       Company issued to such stockholders in the transaction.

              In addition, the Company, certain stockholders of DynaSoft, the
       representative of such DynaSoft stockholders and State Street Bank and
       Trust Company, as escrow agent, have entered into an Escrow Agreement,
       dated as of July 15, 1997, providing, among other things, that 10% of the
       shares of the Company's Common Stock received by such DynaSoft
       stockholders in the transaction will be held in escrow to reimburse the
       Company in connection with breaches of representations, warranties or
       covenants made by such DynaSoft stockholders.

              DynaSoft is based in Stockholm, Sweden and offers a range of
       security solutions, including secure single sign-on (SSSO) solutions,
       through its BoKS product family. DynaSoft markets its products worldwide
       through subsidiaries and also through OEM licensing agreements with Sun
       Microsystems, Inc., Hewlett-Packard Company, and other companies.




                                       7
                                       -
<PAGE>   8

              The following Unaudited Pro Forma Combined Financial Data has been
       derived from the historical financial statements of the Company and
       DynaSoft and give effect to the acquisition of DynaSoft as a pooling of
       interests. For the purposes of the pro forma combined financial data, the
       Company's financial data for the three and six months ended June 30, 1997
       and for the three and six months ended June 30, 1996 have been combined
       with DynaSoft's financial data for the same periods.

       The pro forma information is presented for illustrative purposes only and
is not necessarily indicative of the operating results or financial position
that would have occurred if the acquisition of DynaSoft had been consumated
prior to June 30, 1997 or of future operating results or financial position of
the combined companies.


                   UNAUDITED PRO FORMA COMBINED FINANCIAL DATA
                      (In thousands, except per share data)

<TABLE>
<CAPTION>
                                                       Three Months Ended              Six Months Ended
                                                             June 30,                      June 30,
                                                  ----------------------------    --------------------------
                                                     1997              1996           1997           1996
                                                  -----------      -----------    ------------   -----------

<S>                                               <C>                <C>            <C>              <C>
Revenue                                           $32,955            $19,821        $61,374          $36,111

Net income                                          5,515              3,111         10,076            5,454

Net income per common
    and common equivalent share                   $   .14            $   .08        $   .26          $   .14
                                                  =======            =======        =======          =======

Weighted average number of  common and
    common equivalent shares outstanding           39,527             39,039         39,418           38,398
                                                  =======            =======        =======          =======
</TABLE>


                                       8
                                       -
<PAGE>   9






ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
                                OF OPERATIONS
                                (IN THOUSANDS)

OVERVIEW

       This Quarterly Report on Form 10-Q contains forward-looking statements
within the meaning of Section 21E of the Securities Exchange Act of 1934, as
amended. For this purpose, any statements contained herein that are not
statements of historical fact may bedeemed to be forward-looking statements.
Without limiting the foregoing, the words "believes," "anticipates," "plans,"
"expects," and similar expressions are intended to identify forward-looking
statements. There are a number of factors that could cause the Company's actual
results to differ materially from those indicated by such forward-looking
statements. These factors include, without limitation, those set forth below
under the caption "Certain Factors that May Affect Future Results."

RESULTS OF OPERATIONS

       The following table sets forth income and expense items as a percentage
of total revenue, and the percentage change in dollar amounts of such items, for
the three and six months ended June 30, 1997 and 1996.


<TABLE>
<CAPTION>

                                           Percentage                                    Percentage
                                            of Total          Period-to-Period            of Total            Period-to-Period
                                             Revenue                Change                 Revenue                 Change
                                             -------                ------                 -------                 ------
                                          Three months Ended June 30,                      Six months Ended June 30,
                                      1997           1996                           1997             1996
                                      ----           ----                            ----            ----
- ----------------------
<S>                                  <C>             <C>              <C>            <C>             <C>              <C>
Revenue                              100.0%          100.0%           70.3%          100.0%          100.0%           73.8%
Cost of  revenue                      20.9            20.9            70.0            21.8            22.2            70.9
                                     -----           -----           -----           -----           -----           -----
Gross profit                          79.1            79.1            70.3            78.2            77.8            74.6
                                     -----           -----           -----           -----           -----           -----

Costs and expenses:
    Research and development          13.6            13.3            74.9            13.4            13.5            72.7
    Marketing and selling             29.9            29.5            72.6            29.5            29.7            72.5
    General and administrative        10.7            16.6             9.4            10.9            17.4             8.9
                                     -----           -----           -----           -----           -----           -----
        Total                         54.2            59.4            55.4            53.8            60.6            54.3
                                     -----           -----           -----           -----           -----           -----

Income from operations                24.9            19.7           115.3            24.4            17.2           145.9

Interest income and other              4.6             6.9            13.3             4.7             7.7             6.7
                                     -----           -----           -----           -----           -----           -----

Income before provision for
    income taxes                      29.5            26.6            88.6            29.1            24.9           102.9
Provision for income taxes            11.0            10.0            85.1            10.9             9.3           103.7
                                     -----           -----           -----           -----           -----           -----
Net income                            18.5%           16.6%           90.7%           18.2%           15.6%          102.5%
                                     =====           =====           =====           =====           =====           =====

</TABLE>


                                       9
                                       -
<PAGE>   10





REVENUE

       The Company's revenue is derived principally from the sales of SecurID
tokens, software license fees from ACE/Server and ACM software products,
licensing of B/Safe, Tipem and B/Cert toolkits, licensing of patented
technology, sales of ACM hardware products and revenues from maintenance and
professional services.

       Total revenue increased 70.3% in the second quarter of 1997 to $29,662
from $17,421 in the second quarter of 1996. Total revenue increased 73.8% in the
first six months of 1997 to $56,097 from $32,283 in the first six months of
1996. This increase in revenue reflects increases in unit sales of all of the
Company's products, except ACM/400 and ACM/1600 hardware products. During the
second quarter and first six months of 1997 approximately 40% and 44%,
respectively, of the increase in revenue was attributable to increased sales of
SecurID tokens, approximately 30% and 27%, respectively, of the increase in
revenue was attributable to increased toolkit licensing, and approximately 21%
and 18%, respectively, of the increase in revenue was attributable to increased
sales of ACE/Server and ACM software products. The balance of the increase in
revenue resulted from increased fees from patent licenses and maintenance
services offset by decreased hardware revenue. The Company believes that the
overall increase in sales was attributable in part to growth of the information
security market, with the Internet and corporate intranets continuing to play
significant roles in developing new opportunities for the Company.

       International revenue (excluding Canada and Latin America) increased
110.7% in the second quarter of 1997 to $7,212 from $3,422 in the second quarter
of 1996 and increased 101.8% in the first six months of 1997 to $11,577 from
$5,738 in the first six months of 1996. International revenue accounted for
24.3% and 19.6% of total revenue in the second quarters of 1997 and 1996,
respectively, and 20.6% and 17.8% of total revenue in the first six months of
1997 and 1996, respectively. These increases in international revenue were
primarily attributable to the continuing expansion of the Company's
international direct sales force and increased market penetration of the
Company's products in foreign markets.

COST OF REVENUE AND GROSS PROFIT

       The Company's cost of revenue consists primarily of costs associated with
the manufacture and delivery of SecurID tokens and hardware products. The
Company utilizes assembly contractors for most manufacturing. Cost of revenue
also includes royalty fees incurred on the sale of ACE/Server software, royalty
fees payable on the licensing of patented technology, customer support costs and
production costs, which include labor costs associated with the programming of
SecurID tokens, inspection and quality control functions and shipping costs.



                                       10
                                       --
<PAGE>   11
       The Company's gross profit increased 70.3% in the second quarter of 1997
to $23,461, or 79.1% of revenue, from $13,774, or 79.1% of revenue, in the
second quarter of 1996, and increased 74.6% in the first six months of 1997 to
$43,856, or 78.2% of revenue, from $25,122, or 77.8% of revenue, in the first
six months of 1996. During the second quarter and first six months of 1997
approximately 36% and 42%, respectively, of the increases in gross profit were
attributable to increased unit sales of SecurID tokens, approximately 33% and
32%, respectively, of the increases in gross profit were attributable to
increased licensing sales of toolkit technology, and approximately 24% and 20%,
respectively, of the increases in gross profit were attributable to increased
licensing sales of ACE/Server software. In addition, gross profit increased
primarily due to increased patent licensing fees, royalties and maintenance
revenues, offset by reduced sales of ACM/400 and ACM/1600 hardware units. Gross
profit as a percentage of revenue increased primarily due to increased sales of
software products and patent licensing fees, which have higher margins, relative
to sales of hardware products.

       In the future, gross profit may continue to be affected by several
factors, including changes in product mix and distribution channels, price
reductions (resulting from volume discounts or otherwise), competition,
increased costs of revenue (including increases in material costs associated
with the manufacture of SecurID tokens and hardware products) and other factors.


RESEARCH AND DEVELOPMENT

       Research and development expenses consist primarily of personnel costs as
well as fees for development services provided by consultants.

       Research and development expenses increased 74.9% in the second quarter
of 1997 to $4,050 from $2,315 in the second quarter of 1996, and increased 72.7%
in the first six months of 1997 to $7,530 from $4,360 in the first six months of
1996. Research and development expenses increased as a percentage of revenue in
the second quarter of 1997 to 13.6% from 13.3% in the second quarter of 1996,
but decreased as a percentage of revenue in the first six months of 1997 to
13.4% from 13.5% in the first six months of 1996. During the second quarter and
first six months of 1997 approximately 83.4% and 74.1%, respectively, of the
increases in research and development expenses resulted from employment of
additional staff. The remainder of the increases in research and development
were attributable to purchases of computer equipment, resulting in higher
depreciation charges, occupancy expenses and consulting expenses.

MARKETING AND SELLING

       Marketing and selling expenses consist primarily of salaries, commissions
and travel expenses of direct sales and marketing personnel and marketing
program expenses.


                                       11
                                       --
<PAGE>   12

       Marketing and selling expenses increased 72.6% in the second quarter of
1997 to $8,876 from $5,144 in the second quarter of 1996, and increased 72.5% in
the first six months of 1997 to $16,534 from $9,584 in the first six months of
1996. Marketing and selling expenses increased as a percentage of revenue in the
second quarter of 1997 to 29.9% from 29.5% in the second quarter of 1996, and
decreased as a percentage of revenue in the first six months of 1997 to 29.5%
from 29.7% in the first six months of 1996. During the second quarter and first
six months of 1997 approximately 46% and 46%, respectively, of the increase in
marketing and selling expenses resulted from employment of additional staff,
approximately 10% and 13%, respectively, of the increases in marketing and
selling expenses were attributable to sales commissions on increased revenues,
and approximately 19% and 19%, respectively, of the increases in marketing and
selling expenses resulted from increased travel expenses and marketing program
expenses.

GENERAL AND ADMINISTRATIVE

       General and administrative expenses consist primarily of personnel costs
for administration, finance, human resources and general management as well as
legal and accounting expenses.

       General and administrative expenses increased 9.4% in the second quarter
of 1997 to $3,161 from $2,890 in the second quarter of 1996, and increased 8.9%
in the first six months of 1997 to $6,120 from $5,618 in the first six months of
1996. General and administrative expenses decreased as a percentage of revenue
in the second quarter of 1997 to 10.7% from 16.6% in the second quarter of 1996,
and decreased as a percentage of revenue in the first six months of 1997 to
10.9% from 17.4% in the first six months of 1996. The increases in general and
administrative expenses were due to the employment of additional staff offset by
reduced legal expenses. Legal expenses decreased approximately $545 and $1,299
from the second quarter and first six months of 1996, respectively, compared to
the second quarter quarter and first six months of 1997 due to the settlement of
legal proceedings in 1996.

INTEREST AND OTHER INCOME

       Interest and other income consists primarily of interest earned on the
Company's cash balances and marketable securities.

       Interest income increased 13.3% in the second quarter of 1997 to $1,376
from $1,214 in the second quarter of 1996, and increased 6.7% in the first six
months of 1997 to $2,649 from $2,483 in the first six months of 1996.

PROVISION FOR INCOME TAXES

       The provision for income taxes increased to $3,248 during the second
quarter of 1997 from $1,755 in the second quarter of 1996, and increased to
$6,090 during the first six months of 1997 from $2,991 in the first six months
of 1996 due to higher pre-tax income and a higher effective tax rate during the
first six months of 1997. The Company's estimated effective tax rate decreased
to 37.1% in the second quarter of 1997 from 37.8% in the second quarter of 1996,
and increased to 37.3% in the first six months of 1997 from 37.2% in the first
six months of 1996.




                                       12
                                       --
<PAGE>   13

NET INCOME

       As a result of the above factors, net income in the second quarter and
the first six months of 1997 increased to $5,502 and $10,231, or 18.5% and 18.2%
of revenue, respectively, from $2,884 and $5,052, or 16.6% and 15.6% of revenue,
respectively, in the second quarter and the first six months of 1996.

LIQUIDITY AND CAPITAL RESOURCES

       At June 30, 1997, the Company had cash and marketable securities of
$108,265 and working capital of $118,493. The Company has historically funded
its operations primarily from cash generated from its operating activities.
During the first six months of each of 1996 and 1997, the Company used the cash
provided by operations principally for working capital needs.

       On July 15, 1997, the Company acquired DynaSoft AB, a Stockholm,
Sweden-based provider of enterprise security and single sign-on solutions, for
approximately 2.7 million shares of its Common Stock in exchange for
approximately 95% of the outstanding shares and options to acquire shares of
DynaSoft. The Company also paid approximately $6 million to certain stockholders
of DynaSoft in exchange for the remaining outstanding shares and options. The
transaction will be accounted for as a pooling of interests. See Note 4 of Notes
to Condensed Consolidated Financial Statements.

       The Company's capital expenditures for the first six months of 1997 were
$3,853 and related primarily to additional leasehold improvements, office
furniture and equipment, as well as computer equipment for product development,
testing and support to accommodate the Company's continued growth. The Company
generated $2,261 of cash from the exercise of stock options and generated $1,384
of cash from the sale of minority interests in RSA's Japan subsidiary in the
first six months of 1997.

       In March 1996, the Company entered into a noncancelable operating lease
expiring in 2006 for corporate executive offices in Bedford, Massachusetts. The
Company commenced its tenancy in August 1996. The new facility consists of
approximately 75,000 square feet of office space, and the annual base rent for
the first year is $956, increasing annually up to $1,180 for years five through
ten.

       In June 1997, the Company entered into a noncancelable operating lease
expiring in 2006 for additional facilities in Bedford, Massachusetts. The
Company will commence its tenancy in August 1997. The new facility consists of
approximately 32,000 square feet of office space, and the annual base rent for
the first four years is $599, increasing up to $662 for years five through ten.

       In November 1996, the Company amended its agreement with Progress
Software for the right to use certain of its software to enhance the
functionality of the Company's ACE/Server software. In order to obtain favorable
pricing the Company, pre-paid $1,500 and $1,250 during the first and fourth
quarters of 1996, respectively, and pre-paid $2,500 during the first quarter of
1997.




                                       13
                                       --
<PAGE>   14

       The Company intends to seek acquisitions of businesses, products and
technologies that are complementary to those of the Company. The Company is
continuing to identify and prioritize additional security technologies which it
may wish to develop, either internally or through the licensing or acquisition
of products from third parties. While the Company engages from time to time in
discussions with respect to potential acquisitions, there can be no assurances
that any such acquisitions will be made or that the Company will be able to
successfully integrate any acquired business. In order to finance such
acquisitions, it may be necessary for the Company to raise additional funds
through public or private financings. Any equity or debt financings, if
available at all, may be on terms which are not favorable to the Company and, in
the case of equity financings, may result in dilution to the Company's
stockholders.

       The Company believes that working capital will be sufficient to meet its
anticipated cash requirements through at least 1998.

ACCOUNTING PRONOUNCEMENTS

       In February 1997, the Financial Accounting Standards Board issued
Statement No. 128 ("SFAS 128"), "Earnings per Share", which is required to be
adopted in the fourth quarter of 1997. At that time, the Company will be
required to change the method currently used to compute earnings per share and
to restate all prior periods. SFAS 128 supersedes Accounting Principles Board
Opinion No. 15 and is intended to simplify the computation of earnings per share
and to make the U.S. computations more comparable with international
computations. See Note 2 to Notes to Condensed Consolidated Financial
Statements.

       In June 1997 the Financial Accounting Standards Board issued Statements
of Financial Accounting Standards Nos. 130 and 131, "Reporting Comprehensive
Income" and "Disclosures about Segments of an Enterprise and Related
Information" ("SFAS 130" and "SFAS 131", respectively). The Company will be
required to adopt the provisions of these statements in 1998. SFAS 130 provides
new standards for reporting items considered to be "comprehensive income."
Currently the only items presented in the Company's consolidated financial
statements which meet these criteria are the unrealized gains and losses on
marketable securities recorded as a component of stockholders' equity. SFAS 130
would not affect this classification, but would require more prominent
disclosure of unrealized gains and losses on marketable securities. SFAS 131
establishes new standards for reporting information about operating segments.
The provisions of SFAS 130 or SFAS 131 will not, when adopted, have a material
impact on the Company's net income or financial position.

CERTAIN FACTORS THAT MAY AFFECT FUTURE RESULTS

       The following important factors, among others, could cause actual results
to differ materially from those indicated by forward-looking statements made in
this Quarterly Report on Form 10-Q and presented elsewhere by management from
time to time.

       A number of uncertainties exist that could affect the Company's future
operating results, including, without limitation, general economic conditions,
the Company's continued ability to develop and introduce products, the
introduction of new products by competitors, pricing practices of competitors,
expansion of the Company's sales distribution capability, the cost and
availability of components and the Company's ability to control costs.


                                       14
                                       --
<PAGE>   15

       The Company's success is dependent in part on its ability to complete its
integration of the operations of DynaSoft and RSA in an efficient and effective
manner. The successful combination of the Company, DynaSoft and RSA in a rapidly
changing high technology industry may be more difficult to accomplish than in
other industries. The combination of the two companies will require, among other
things, integration of the companies' respective product offerings and
coordination of their sales and marketing and research and development efforts.
There can be no assurance that such integration will be accomplished smoothly or
successfully. The difficulties of such integration may be increased by the
necessity of coordinating geographically separated organizations. The
integration of certain operations will require the dedication of management
resources which may temporarily distract attention from the day-to-day business
of the combined company. The inability of management to successfully integrate
the operations of the three companies could have a material adverse effect on
the business and results of operations of the Company.

       The Company's success is also dependent on the success of its Enterprise
Security Services, which is a security solution being developed by the Company
that would enable organizations to support and manage the growing use of public
and private keys, digital signatures and digital certificates for assuring
confidentiality and privacy on an enterprise-wide scale. The success of
Enterprise Security Services is dependent on a number of factors, including
without limitation delays in product development, undetected software errors or
bugs, competitive pressures, technical difficulties, market acceptance of new
technologies, including without limitation the use and implementation of various
certificate management and key management technologies, changes in customer
requirements and government regulations, delays in developing strategic
partnerships and general economic conditions.

       The Company's success is highly dependent on its ability to enhance its
existing products and to develop and introduce new products in a timely manner.
If the Company were to fail to introduce new products on a timely basis, the
Company's operating results could be adversely affected. To date, substantially
all of the Company's revenues have been attributable to sales of its computer
and network security products and related services, all of which are currently
used with the Company's SecurID token technology and the licensing of toolkits
and patent technology. As a result, any factor adversely affecting sales of
these products and services could have a material adverse effect on the
Company's financial condition and results of operations.

       Certain components of the Company's products are currently purchased from
sole or limited sources and any interruption in the supply of such components
could adversely affect the Company's operating results.

       The Company's quarterly operating results may vary significantly
depending on a number of factors, including the timing of the introduction or
enhancement of products by the Company or its competitors, the sizes, timing and
shipment of individual orders, market acceptance of new products, changes in the
Company's operating expenses, personnel changes, mix of products sold, changes
in product pricing, development of the Company's direct and indirect
distribution channels and general economic conditions.

       International sales have represented a significant portion of the
Company's sales. The international business and financial performance of the
Company may be affected by fluctuations in foreign exchange rates, difficulties
in managing accounts receivable, tariff regulations and difficulties in
obtaining export licenses.



                                       15
                                       --
<PAGE>   16

PART II.         OTHER INFORMATION

ITEM 4.              SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

        At the 1997 Annual Meeting of Stockholders of the Company (the "Annual
Meeting") held on April 24, 1997, the following matters were acted upon by the
stockholders of the Company:

        1.      The election of George M. Middlemas and Marino R. Polestra as
Class III Directors for the ensuing three years;

        2. The approval of an amendment to the Company's 1994 Stock Option Plan
(the "1994 Plan") increasing from 4,820,000 to 6,570,000 the number of shares of
Common Stock authorized under the 1994 Plan and the continuance of the 1994
Plan, as amended (the "Plan Amendment"); and

        3.       Ratification of the appointment of Deloitte & Touche LLP as
independent auditors of the Company for the current year.

        The number of shares of Common Stock outstanding and entitled to vote at
the Annual Meeting was 34,956,261. The other directors of the Company, whose
terms of office as directors continued after the Annual Meeting, are Charles R.
Stuckey, Jr., D. James Bidzos, Richard L. Earnest , Joseph B. Lassiter III and
Sanford M. Sherizen. The results of the voting on each of the matters presented
to stockholders at the Annual Meeting are set forth below:

<TABLE>
<CAPTION>

                                            Votes            Votes           Votes                        Broker
                                             For           Withheld         Against      Abstentions     Non-votes
                                         ----------        --------        ---------     -----------     ---------
<S>                                      <C>                <C>
1.  Election of Class III Directors:
    George M. Middlemas                  29,934,223         80,342            N.A             N.A.            N.A.
    Marino R. Polestra                   29,933,623         80,942            N.A.            N.A.            N.A.

2.  Plan Amendment                       18,426,146           N.A.         5,618,109         61,771       5,908,539
3.  Ratification of
      Independent Auditors               29,970,684           N.A.             6,969         36,912           N.A.
</TABLE>




                                       16
                                       --
<PAGE>   17






ITEM 6.              EXHIBITS AND REPORTS ON FORM 8-K

a)     Exhibits

              The Exhibits listed in the Exhibit Index immediately preceding
       such Exhibits are filed as part of this Quarterly Report on Form 10-Q.

b)     Reports on Form 8-K:

       None.


                                       17
                                       --
<PAGE>   18



 SIGNATURE

       Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.


                                     SECURITY DYNAMICS TECHNOLOGIES, INC.


Dated: August 11, 1997              /s/ Arthur W. Coviello, Jr.
                                    --------------------------------------------
                                    Arthur W. Coviello, Jr.
                                    Executive Vice President,
                                    Treasurer and Chief Financial Officer
                                    (Principal Financial and Accounting Officer)





                                       18
                                       --
<PAGE>   19


                                  EXHIBIT INDEX

ITEM          DESCRIPTION

10.1          Amendment No. 3 to 1994 Stock Plan Option Plan, as amended

10.2          First Amendment to Lease, dated as of May 10, 1997, between the
              Registrant and Beacon Properties, L.P.

*10.3         Second Amendment to Progress Software Application Partner
              Agreement, dated as of November 29, 1995, between the Registrant
              and Progress Software Corporation

*10.4         Third Amendment to Progress Software Application Partner
              Agreement, dated as of November 15, 1996, between the Registrant
              and Progress Software Corporation

11            Computation of Income Per Common and Common Equivalent Share.

27            Financial Data Schedule.


- --------------------
*Confidential treatment requested as to certain portions, which portions are
omitted and filed separately with the Securities and Exchange Commission.


                                       19
                                       --

<PAGE>   1
                                                                    EXHIBIT 10.1

                      SECURITY DYNAMICS TECHNOLOGIES, INC.

                                 AMENDMENT NO. 3

                                       TO

                             1994 STOCK OPTION PLAN



         The 1994 Stock Option Plan (the "Plan") of Security Dynamics
Technologies, Inc. is hereby amended as follows (capitalized terms used herein
and not defined herein shall have the respective meaning ascribed to such terms
in the Plan):

         The first sentence of Section 4 of the Plan shall be deleted in its
entirety and replaced with the following:

"Subject to adjustment as provided in Section 15 below, the maximum number of
shares of Common Stock which may be issued and sold under the Plan is 6,570,000
shares."

         Except as aforesaid, the Plan shall remain in full force and effect.


                          Adopted by the Board of Directors on February 12, 1997

                          Approved by the stockholders on April 24, 1997

<PAGE>   1
                                                                    EXHIBIT 10.2

                         Crosby Corporate Center
                         Bedford, Massachusetts
                                ("Park")

                        FIRST AMENDMENT TO LEASE
                           Date: May 10, 1997


         LANDLORD:     Beacon Properties, L.P.

         TENANT:       Security Dynamics Technologies, Inc.

         LEASE
         EXECUTION
         DATE:         March 11, 1996

         EXISTING
         PREMISES:     The entirety of 20 Crosby Drive (Building No. 1) in the
                       Park, as more particularly described in the Lease

         RENT
         COMMENCEMENT
         DATE:         August 1, 1996

         TERMINATION
         DATE:         July 31, 2006

         PREVIOUS
         LEASE
         AMENDMENTS:   None

         FIRST AMENDMENT ADDITIONAL PREMISES:
                       The entirety of Building No. 3 in the Park,
                       substantially as shown on Lease Plan,
                       Exhibit 2, First Amendment, dated May 10,
                       1997. The First Amendment Additional
                       Premises have two floors. The first floor
                       contains 15,863 square feet of Total
                       Rentable Area and the second floor contains
                       15,652 square feet of Total Rentable Area.

         WHEREAS, Tenant desires to lease additional premises in the Park, to
wit, the First Amendment Additional Premises;

         WHEREAS, Landlord is willing to lease the First Amendment Additional
Premises to Tenant on the terms and conditions hereinafter set forth;
<PAGE>   2
         NOW THEREFORE, the above-referenced lease ("the Lease") is hereby
amended as follows:

1.       DEMISE OF FIRST AMENDMENT ADDITIONAL PREMISES

         Landlord hereby demises and leases to Tenant, and Tenant hereby hires
and takes from Landlord, the First Amendment Additional Premises. Said demise of
the First Amendment Additional Premises shall be upon the terms set forth on
Exhibit 1, First Amendment Version, Sheets 1, 2, and 3, dated May 10, 1997, and
upon all of the terms and conditions of the Lease to the extent not inconsistent
with said Exhibit 1 and provisions of this First Amendment. Wherever the term
"Building" is used in the Lease in connection with the First Amendment
Additional Premises, such term shall be deemed to refer to Building No. 3 in the
Park.

2.       TERM COMMENCEMENT DATE IN RESPECT OF FIRST AMENDMENT
         ADDITIONAL PREMISES

         The Term Commencement Date in respect of the First Amendment Additional
Premises shall be the date that each party executes and delivers this First
Amendment.

3.       RENT COMMENCEMENT DATES IN RESPECT OF THE FIRST
         AMENDMENT ADDITIONAL PREMISES

         Subject to the provisions of Subparagraph B of Paragraph 6 of this
First Amendment, the Rent Commencement Dates in respect of the First Amendment
Additional Premises shall be as follows:

         First Floor:      The earlier of: (x) August 4, 1997, or (y) the date
                           that Tenant commences to use the first floor of the 
                           First Amendment Additional Premises, or any portion 
                           thereof, for business purposes

         Second Floor:     The earlier of: (x) January 5, 1998, or (y) the date 
                           that Tenant commences to use the second floor of the 
                           Second Amendment Additional Premises, or any portion
                           thereof, for business purposes

4.       COMMENCEMENT OF TENANT'S OBLIGATIONS TO PAY TAX EXCESS
         AND OPERATING EXPENSE EXCESS

         A.   Notwithstanding anything to the contrary herein or in the Lease
contained, Tenant's obligation to pay Tax Excess in respect of the entirety of
the First Amendment Additional Premises shall commence as of July 1, 1998.


                                      -2-
<PAGE>   3
         B.   Notwithstanding anything to the contrary herein or in the Lease
contained, Tenant's obligation to pay Operating Expense Excess in respect of the
entirety of the First Amendment Additional Premises shall commence as of January
1, 1998.

5.       CONDITION OF FIRST AMENDMENT ADDITIONAL PREMISES

         Tenant shall take the First Amendment Additional Premises "as-is", in
the condition in which the First Amendment Additional Premises are in as of the
Term Commencement Date in respect of the First Amendment Additional Premises,
without any obligation on the part of Landlord to perform any work in order to
prepare the First Amendment Additional Premises for Tenant's occupancy, and,
except as set forth in Article 7(f) and Exhibit 7 of the Lease, without any
representation by Landlord to Tenant as to the condition of the First Amendment
Additional Premises. Without limiting the foregoing, Articles 4.1-4.8 of the
Lease and Exhibits 4 and 4A of the Lease shall have no applicability to the
First Amendment Additional Premises. Notwithstanding the foregoing, Landlord
shall, at its sole cost and expense, install a separate electric submeter
measuring the consumption of electric current in the First Amendment Additional
Premises.

6.       LANDLORD BASE BUILDING CODE COMPLIANCE WORK ISSUES

         A.   The parties have identified certain items of work ("Base Building
Code Compliance Work") listed on Exhibit 4, First Amendment, dated May 10, 1997,
a copy of which is attached hereto and made a part hereof, which must be
performed in order to bring the Base Building into compliance with applicable
state and local law. Tenant shall perform such Base Building Code Compliance
Work as part of the improvements which Tenant will be performing in the First
Amendment Additional Premises. Landlord shall, at Tenant's election, either pay
to Tenant or Tenant's contractor the cost of performing other items ("Landlord
Cost Items") of Base Building Code Compliance Work, as identified on said
Exhibit 4. Landlord shall pay for the Landlord Cost Items within thirty (30)
days of its receipt of a requisition therefore after the completion of the
applicable item of work. Such requisition shall include evidence reasonably
satisfactory to Landlord of the amount of such Landlord Cost Item.

         B.   The parties acknowledge that it is possible that, prior to 
Tenant's occupancy of the First Amendment Additional Premises, the Town of
Bedford may order that work ("Additional Code Compliance Work"), other than the
Base Building Code Compliance Work identified on Exhibit 4, First Amendment, be
performed in order to bring the Base Building into compliance with law and in
order to allow Tenant to legally occupy the First Amendment Additional Premises.
If either Landlord and/or Tenant is so ordered to perform any Additional Code
Compliance Work, then:


                                       -3-
<PAGE>   4
         (1)   At Landlord's election, either: (i) Landlord shall pay to Tenant 
         or Tenant's contractor the cost of performing the Additional Landlord
         Cost Items, as hereinafter defined, or (ii) Landlord shall engage its
         own contractor to perform the Additional Landlord Cost Items, and

         (2)   The Rent Commencement Date in respect of the affected floor of 
         the First Amendment Additional Premises shall be extended by the
         length of time (if any) that Tenant's occupancy of such floor of the
         First Amendment Additional Premises is delayed as the result of the
         performance of the Additional Landlord Cost Items.

         C.   For the purposes of this Paragraph 6, "Additional Landlord Cost
Items" shall be defined as any Additional Code Compliance Work other than such
work as required as the result of Tenant's particular or unusual use or
construction of any portion of the First Amendment Additional Premises. General
business office use shall not be considered to be a particular or unusual use of
the First Amendment Additional Premises, and construction necessary to allow for
general business office use shall not be considered to be particular or unusual
construction. Without limiting the foregoing, construction of a seating area in
the sunken area on the first floor of the First Amendment Additional Premises
shall not be considered to be particular or unusual use or construction.

7.       TENANT'S EARLY TERMINATION RIGHT

         Tenant's early termination right, as set forth in Paragraph 1 of the
Rider to the Lease shall have no applicability to the First Amendment Additional
Premises (i.e. if Tenant exercises its early termination right under said
Paragraph 1 with respect to the Existing Premises, the Lease shall remain in
full force and effect with respect to the First Amendment Additional Premises).

8.       TENANT'S EXTENSION OPTION

         Tenant's extension option with respect to the First Amendment
Additional Premises may NOT be exercised independently of Tenant's extension
option with respect to the Existing Premises (i.e. Tenant may NOT extend the
term of the Lease with respect to the First Amendment Additional Premises
without exercising its right to extend the term of the Lease with respect to the
Existing Premises). However, Tenant's extension option with respect to the
Existing Premises shall be independent of Tenant's extension option with respect
to the First Amendment Additional Premises (i.e. Tenant shall have the right to
extend the term of the Lease with respect to the Existing Premises without
exercising its right to extend the term of the Lease with respect to the First
Amendment Additional Premises).


                                       -4-
<PAGE>   5
9.       PARKING

         A.  Tenant shall have the exclusive right, in connection with its 
demise of the First Amendment Additional Premises, to use the three (3) parking
spaces located in the area shown as "Tenant's Building No. 3 Exclusive Parking
Area" on Exhibit 3, First Amendment. Tenant's right to use Tenant's Building No.
3 Exclusive Parking Area shall be upon all of the same terms and conditions as
are applicable to Tenant's right to use Tenant's Exclusive Parking Area, as set
forth in Article 2.3 of the Lease.

         B.  The present (i.e. as of the Execution Date) configuration of the 
common and exclusive parking areas in the Park is as set forth on Exhibit 3,
First Amendment.

         C.  Tenant's right to use Tenant's Exclusive Parking Area on an
exclusive basis is appurtenant solely to Tenant's demise of the Existing
Premises and Tenant's right to use Tenant's Building No. 3 Exclusive Parking
Area on an exclusive basis is appurtenant solely to Tenant's demise of the First
Amendment Additional Premises (i.e. from and after the termination of the term
of the Lease in respect of the Tenant's Exclusive Parking Area, Tenant shall
have no further right to use Tenant's Exclusive Parking Area on an exclusive
basis and from and after the termination of the term of the Lease in respect of
Tenant's Building No. 3 Exclusive Parking Area, Tenant shall have no further
right to use Tenant's Exclusive Building No. 3 Parking Area).

10.      LANDLORD'S TERMINATION RIGHTS BASED UPON VACANCY

         Landlord's termination right under Article 5.4 of the Lease shall apply
to the Existing Premises independently of the First Amendment Additional
Premises, provided however, that the Vacancy Period, as defined in Article 5.4,
applicable to the First Amendment Additional Premises shall be three hundred
sixty-five (365) consecutive days. In other words:

         A.  If Tenant ceases to use all, or substantially all, of the Existing
         Premises for one hundred twenty (120) consecutive days, but Tenant
         continues to use the First Amendment Additional Premises, then Landlord
         shall have the right to terminate the term of the Lease in respect of
         the Existing Premises in accordance with Article 5.4, but Landlord
         shall not have the right to terminate the term of the Lease with
         respect to the First Amendment Additional Premises.

         B.  If Tenant ceases to use all, or substantially all, of the First
         Amendment Additional Premises for the three hundred sixty-five (365)
         consecutive days, but Tenant continues to use the Existing Premises,
         then Landlord shall have the right to terminate the term of the Lease
         in respect of the First Amendment Additional Premises, but Landlord
         shall not have the right to terminate the term of the Lease with
         respect of the Existing Premises.


                                       -5-
<PAGE>   6
11.      TERMINATION RIGHTS BASED UPON CASUALTY AND TAKING

         In the event of a casualty or a taking which affects only one of the
Buildings which would allow either party to exercise its rights, under either
Article 18 or 20 of the Lease, to terminate the Lease, then, notwithstanding
anything to the contrary herein contained, neither party shall have the right to
terminate the term of the Lease with respect to the Building which is not
affected by such casualty or taking.

12.      TENANT'S SECURITY

         Tenant shall not be required to provide additional security (i.e. in
addition to the $750,000.00 Letter of Credit which Tenant delivered to Landlord
in connection the execution of the Lease) in connection with its demise of the
First Amendment Additional Premises. The parties confirm and agree that said
$750,000.00 Letter of Credit shall secure Tenant's obligations under the Lease,
as hereby amended.

13.      SIGNAGE

         Subject to obtaining Landlord's approval of the particulars therefor
which shall not be unreasonably withheld, and Tenant's obtaining all necessary
governmental approvals therefor, Tenant may at its sole cost and expense install
an exterior monument sign in front the First Amendment Additional Premises. Such
sign shall identify Tenant and shall be in a location approved by Landlord. If
Tenant installs such monument sign, Tenant shall maintain the same in good order
and repair at all times and shall remove the same from the Park at the
expiration or earlier termination of the term of the Lease in respect of the
First Amendment Additional Premises.

14.      EXHIBIT 1

         Exhibit 1, Sheets 1, 2, 3, and 4, dated March 11, 1996 shall have no
applicability to the First Amendment Additional Premises and in lieu thereof,
Exhibit 1, First Amendment Version, Sheets 1, 2, 4, and 4, dated May 10, 1997
shall apply to the First Amendment Additional Premises.


                                       -6-
<PAGE>   7
15.      As hereby amended, the Lease is ratified, confirmed, and approved in 
all respects.

         EXECUTED UNDER SEAL as of the date first above written.

         LANDLORD:
         BEACON PROPERTIES, L.P.
         By BEACON PROPERTIES CORPORATION,
               General Partner

         By  /s/ Douglas S. Mitchell
             ------------------------------------
               (Name)            (Title)
               Hereunto Duly Authorized

         Date Signed  5/30/97
                    -----------------------------
         TENANT:
         SECURITY DYNAMICS TECHNOLOGIES, INC.

         By  /s/ A. W. CoviellO, Jr.       C.O.O.
             ------------------------------------
               (Name)            (Title)
               Hereunto Duly Authorized

         Date Signed  5/15/97
                    -----------------------------


                                       -7-
<PAGE>   8
                  EXHIBIT 1, FIRST AMENDMENT VERSION, SHEET 1
                                 BUILDING NO. 3
                            CROSBY CORPORATE CENTER
                             BEDFORD, MASSACHUSETTS


Execution Date:           May 10, 1997

Tenant:                   SECURITY DYNAMICS TECHNOLOGIES, INC. (a
                          Delaware corporation)

Mailing Address:          20 Crosby Drive, Bedford, Massachusetts 01730

Landlord:                 Beacon Properties, L.P., a Delaware limited
                          partnership (the sole general partner of which is
                          Beacon Properties Corporation, a Maryland
                          corporation.)

Mailing Address:          50 Rowes Wharf, Boston, Massachusetts 02110,
                          Attention: General Partner

Park:                     The land, buildings and other improvements
                          thereon, from time to time, located off Crosby Drive
                          in the Town of Bedford, Middlesex County,
                          Commonwealth of Massachusetts known as Crosby
                          Corporate Center, substantially as shown on the
                          plan, and as more particularly described in the legal
                          description, both of which are attached to the Lease
                          as Exhibit 3.

Building:                 24 Crosby Drive, Bedford, MA (Building Three in
                          the Park).

Art.2
First Amendment
Additional Premises:      The entirety of the Building, substantially as shown
                          on Lease Plan, Exhibit 2, First Amendment.
Art. 3.1
Term
Commencement
Date in respect
of the First Amendment
Additional Premises:      The date that the First Amendment is executed and
                          delivered by both parties

                                         
                                       -1-
<PAGE>   9
                   EXHIBIT 1, FIRST AMENDMENT VERSION, SHEET 2
                                 BUILDING NO. 3
                             CROSBY CORPORATE CENTER
                             BEDFORD, MASSACHUSETTS


Art. 3.2
Termination
Date in respect
of First Amendment
Additional Premises:       Subject to the provisions of the Lease, July 31, 2006

Art. 5
Use of First Amendment Additional Premises:
                           General office purposes, research, development, light
                           manufacturing and any uses ancillary thereto.

Art. 6
Yearly Rent:

<TABLE>
<CAPTION>
                                                                                              Yearly Rent
                                                                                                 Rental
                                                                                                Rate Per
                                                                                              Square Foot
                                                                                                of Total
     FAAP Lease                                                   Monthly                       Rentable
        Year                      Yearly Rent                     Payment                         Area
     <S>                          <C>                            <C>                             <C>   
        1-4                       $598,785.00                    $49,898.75                      $19.00

     5-July 31,                   $661,815.00                    $55,151.25                      $21.00
        2006
</TABLE>


For the purposes hereof, an "FAAP Lease Year" shall be defined as any
twelve (12) month period during the term of the Lease in respect of the
First Amendment Additional Premises commencing as of the Rent
Commencement Date in respect of the first floor of the First Amendment
Additional Premises, or as of any anniversary of such Rent Commencement
Date.

Notwithstanding anything to the contrary herein contained, the Yearly
Rent payable in respect of the period from the Rent Commencement Date
in respect of the first floor of the First Amendment Additional
Premises through the day immediately preceding the Rent Commencement
Date in respect of the second


                                       -2-
<PAGE>   10
                   EXHIBIT 1, FIRST AMENDMENT VERSION, SHEET 3
                                 BUILDING NO. 3
                             CROSBY CORPORATE CENTER
                             BEDFORD, MASSACHUSETTS


floor of the First Amendment Additional Premises shall be $25,116.42 per month.

Rent
Commencement
Dates:                     See Paragraph 3 of the First Amendment

Art. 7
Total
Rentable Area in
respect of First
Amendment Additional
Premises:

<TABLE>
                           <S>               <C>               
                           First Floor:      15,863 square feet
                           Second Floor:     15,652 square feet
                           ------------------------------------ 
                           Total:            31,515 square feet
</TABLE>

Art. 8
Electricity:               Electric current for lighting and outlet plug use 
                           will be sub-metered and paid to Landlord in 
                           accordance with Articles 8.1 and 8.5 of the Lease.

                           Base Electric Cost: $.96 per square foot of Total
                           Rentable Area per year
                           Electric Rate: $.096 per kilowatt hour
                           Initial Estimated Monthly Electric Payment:
                           $2,521.20 per month

Art. 9

Operating
Cost Base:                 The actual amount of Operating Costs for calendar
                           year 1997, as the same may be adjusted to account
                           for vacancies in the Park in accordance with 
                           Article 9.1 (g)(5) of the Lease.


                                       -3-
<PAGE>   11
                   EXHIBIT 1, FIRST AMENDMENT VERSION, SHEET 4
                                 BUILDING NO. 3
                             CROSBY CORPORATE CENTER
                             BEDFORD, MASSACHUSETTS


Tenant's
Operating Cost
Percentage:                One hundred percent (100%) of the Building.

Tax Base:                  The actual amount of Taxes for fiscal tax year 1998
                           (i.e. July 1, 1997-June 30, 1998

Tenant's
Tax Percentage:            9.31% (i.e., the percentage determined by dividing
                           the Total Rentable Area of the Premises, 31,515
                           square feet, by the Total Rentable Area of the Park,
                           338,563 square feet).

Art. 29.3
Co-Brokers:                Spaulding & Slye and Beacon Management
                           Company.

Art. 29.5
Arbitration:               Massachusetts; Superior Court

LANDLORD:                                   TENANT:

BEACON PROPERTIES, L.P.                     SECURITY DYNAMICS
                                            TECHNOLOGIES, INC.
By: Beacon Properties Corporation,
  General Partner                           By:  /s/ A. W. Coviello, Jr.
                                               ---------------------------
                                                 Name:
                                                 Title: C.O.O.
By:  /s/ Douglas S. Mitchell                     Duly Authorized
     ------------------------- 
     Douglas S. Mitchell
     Senior Vice President

Date Signed:  5/30/97                       Date Signed:  5/15/97
            ------------------                          ------------------

                                       -4-
<PAGE>   12
                     LEASE PLAN, EXHIBIT 2, FIRST AMENDMENT,
                   SHEET 1, FLOOR 1,       DATE: MAY 10, 1997


               [Detailed floor plan of floor 1 of leased premises]
<PAGE>   13
                     LEASE PLAN, EXHIBIT 2, FIRST AMENDMENT,
                   SHEET 2, FLOOR 2,       DATE: MAY 10, 1997


               [Detailed floor plan of floor 2 of leased premises]
<PAGE>   14
                           EXHIBIT 4, FIRST AMENDMENT
                          BASE BUILDING CODE COMPLIANCE


     1.   Seal any openings in the exit stairs.

     2.   Verify, and add where necessary, fire dampers in the base penetrations
          including any which may be required in the exit stairs and open well
          grills.

     3.   Correct the transition between the sidewalk ramp and the front entry
          platform.

     4    Correct, if necessary, the speed of the door closure at front entrance
          for compliance. (This shall be done after a final HVAC balancing of
          the space).

     5.   Remove the knob hardware on all existing doors that will remain, and
          replace with code compliant lever hardware.

     6.   Correct the height of the fire strobe at second level entrance to Left
          Stair.

     7.   Install code compliant signage at all four HC Toilet Rooms and at the
          Elevator.

     8.   Verify with the Building Inspector the ability to substitute Tenant
          water coolers for water fountains on floors one and two. If
          unacceptable, two will be added based upon final tenant layout plans.

     9.   Reglaze and repaint the metal windows at the rear of first floor and
          in upper clerestory and replace glass with insulated glazing units if
          possible. If new insulating glazing units are not feasible, then
          replace windows with new insulated glazing system (Note: This is not a
          code compliancey issue).

     10.  Repair or replace, as required, the rear exit door.

     11.  Repair exterior plaster soffit above rear exit door.

     12.  Replace the missing fixture in first floor gang toilet room.

     13.  Return the pressure pump to service.

     14.  Correct, if necessary, the emergency lighting requirements of the
          toilet rooms.

<PAGE>   1
                                                                    EXHIBIT 10.3

          Confidential Materials omitted and filed separately with the
      Securites and Exchange Commission. Asterisks denote such omissions.


                SECOND AMENDMENT TO PROGRESS SOFTWARE APPLICATION
                                PARTNER AGREEMENT


SECOND AMENDMENT made as of the 29th day of November, 1995 to the Progress
Software Application Partner Agreement (the "Agreement") by and between Progress
Software Corporation ("PSC") and Security Dynamics Inc. ("AP") dated as of the
5th day of December, 1994 previously amended by the Progress Software
Application Partner Agreement Addendum (the "Addendum") by and between PSC and
AP dated as of the 5th day of December, 1994 and a subsequent amendment to the
agreement dated as of the 19th day of October, 1995 (the "Amendment"). The terms
and conditions of the Addendum and the Amendment shall be entirely superseded by
this Second Amendment. PSC hereby acknowledges payment by AP of the $50,000
development license fee and the initial maintenance fee set forth in Section 7
of Attachment A to this Second Amendment and the $75,000 conversion license fee
set forth in Section 11 of Attachment A. The parties agree that, effective as of
the 5th day of December, 1994, the Agreement shall be amended as follows:

1.   Capitalized terms used but not defined in this Second Amendment shall have
     the same meaning as in the Agreement.

2.   Section 1.1 of the Agreement shall be modified by (a) deleting the words
     "in PSC's judgment" located in Section 1.1 between the words "provided
     that," and "the products AP supplies" and (b) adding the following sentence
     to the end of Section 1.1:

     "AP may distribute PSC product licenses to AP customers directly, or
     indirectly through a distributor subject to distributor's compliance with
     the terms and conditions of this Agreement."

3.   Section 4.1 of the Agreement shall be modified by inserting the following:

     "(except that AP shall remove the capability to create new databases from
     all copies of PSC products installed at an AP customer site by removing
     certain utility files mutually designated by the parties from time to
     time)"

4.   Section 4.3 of the Agreement shall be modified by adding the following
     sentence to the end of Section 4.3:
<PAGE>   2
          Confidential Materials omitted and filed separately with the
       Securites and Exchange Commission. Asterisks denote such omissions.


     "PSC shall use any information obtained from such audit solely for the
     purposes of insuring compliance with the terms and conditions of this
     Agreement."

5.   Section 5.1 of the Agreement shall be modified by (a) inserting the
     following at the beginning of Section 5.1:

     "For a period of ninety (90) days following receipt of a PSC product by an
     AP customer or one hundred and eighty (180) days from receipt of a PSC
     product by an AP GSA contract customer, PSC shall warrant to AP that the
     PSC product operates substantially in accordance with accompanying PSC
     documentation and that the media is free from defect. AP's sole remedy for
     a claim brought under this Section 5.1, shall be to return the relevant PSC
     product to PSC for repair or replacement at PSC's sole option. AP shall
     remove the capability to create new databases from all copies of PSC
     products installed by AP by removing certain utility files mutually
     designated by the parties from time to time and, except for the foregoing
     modification, this limited warranty shall not apply if the PSC product has
     been modified or altered by AP and/or AP's customer. This warranty shall
     apply only to claims made by AP within the above-mentioned warranty
     period.";

     (b) modifying the sentence beginning with "OTHER THAN THE LIMITED WARRANTY"
     so that the words "SET FORTH ABOVE AND THE LIMITED WARRANTY" are inserted
     between "OTHER THAN THE LIMITED WARRANTY" and ", IF ANY," and

     (c) deleting the last sentence of Section 5.1.

6.   Section 6.1 of the Agreement shall be deleted in its entirety and replaced
     with the following:

     "The liability of PSC, if any, for damages arising out of this Agreement
     shall be limited to an amount equal to the lesser of: (a) the aggregate
     amounts paid by AP and received by PSC under this Agreement or (b)
     ************************  *************** and shall in no event include
     incidental or consequential damages of any kind, even if PSC has been
     informed of the possibility of such damages. Notwithstanding the foregoing,
     the above-described limitation of liabilities shall not apply to (a) claims
     covered under the indemnification clause in Section 9.2 below or (b) claims
     of personal injury or death or damage to tangible property based solely on
     the operation of the PSC product,


                                       -2-
<PAGE>   3

   Confidential Materials omitted and filed separately with the Securities and
              Exchange Commission. Arterisks denote such omissions.



     unaltered or modified only as expressly authorized by PSC under the terms
     and conditions of this Agreement or any addenda mutually executed by PSC
     and AP.

     The liability of AP, if any, for damages arising out of this Agreement
     shall be limited to an amount equal to the lesser of: (a) the sum of the
     aggregate amounts paid by AP under this Agreement and any outstanding
     amounts owed by AP to PSC under this Agreement or (b) *************
     ************** and shall in no event include incidental or
     consequential damages of any kind, even if AP had been informed of the
     possibility of such damages. Notwithstanding the foregoing, the
     above-described limitation of liabilities shall not apply to (a) claims
     covered under the indemnification clause in Section 9.1 below, (b) claims
     resulting from AP's breach of its obligations under Section 4.1 above or
     (c) any claims resulting from AP's failure to make any payments described
     in this Agreement or any addenda mutually executed by PSC and AP. With
     regard to any claims PSC may have in connection with AP's failure to make
     payments described in this Agreement or any addenda mutually executed
     between AP and PSC, the liability of AP shall be limited to the amounts
     owing to PSC including all interest accrued pursuant to Section 2.4 of the
     Agreement."

7.   Section 9.1 of the Agreement shall be deleted in its entirety and replaced
     with the following:

     "AP AGREES TO INDEMNIFY AND HOLD HARMLESS PSC AND ITS OFFICERS, DIRECTORS,
     EMPLOYEES, AND AGENTS, FROM AND AGAINST ANY AND ALL CLAIMS, DEMANDS, COSTS
     AND LIABILITIES (INCLUDING ALL REASONABLE ATTORNEY'S FEES) OF ANY KIND
     WHATSOEVER, ARISING OUT OF (A) THE GROSS NEGLIGENCE OR WILLFUL MISCONDUCT
     OF AP, (B) AP'S FAILURE TO MEET ITS OBLIGATIONS UNDER SECTION 5.3 HEREIN OR
     (C) AP'S SALE OR USE OF THE PSC PRODUCT, EXCEPT TO THE EXTENT ANY SUCH
     CLAIMS, DEMANDS, COSTS AND LIABILITIES (INCLUDING REASONABLE ATTORNEY'S
     FEES) ARISE PRIMARILY OUT OF AN ACT OR OMISSION BY PSC. AP'S OBLIGATIONS
     UNDER THIS SECTION 9.1 SHALL BE SUBJECT TO PSC PROVIDING PROMPT NOTICE, IN
     WRITING, TO AP OF ANY CLAIM OR PROCEEDING WITH THE SCOPE OF THIS
     INDEMNIFICATION AND GIVING AP SOLE CONTROL OF THE DEFENSE OF ANY SUCH CLAIM
     OR PROCEEDING AND ALL NEGOTIATIONS FOR ITS COMPROMISE OR SETTLEMENT."

8.   Section 9.2 of the Agreement shall be added as follows:


                                       -3-
<PAGE>   4
     "PSC agrees to indemnify and hold AP and its officers, directors, employees
     and agents harmless from and against any and all claims, demands, costs and
     liabilities (including all reasonable attorney's fees) of any kind
     whatsoever, arising directly out of any claim that a PSC product infringes
     a U.S. patent or copyright of any third party provided AP notifies PSC
     promptly in writing of any such claim or proceeding, and further provided
     that AP give PSC sole control of the defense of any such claim or
     proceeding and all negotiations for its compromise or settlement. Should
     any PSC product become, or in PSC's sole opinion be likely to become, the
     subject of a claim of infringement, PSC shall have the right, at PSC's
     option and expense, (i) to procure for AP the right to continue using it,
     (ii) to replace or modify it with a non-infringing version of substantially
     equivalent function and performance or (iii) reasonably failing the above,
     to refund to AP the depreciated value of the relevant PSC product(s) upon
     AP's return of the PSC Product(s) to PSC. The depreciated value shall be
     determined by the straight line method, for a five (5) year life, applied
     to the amount actually paid by AP for the relevant PSC product license(s).
     PSC shall have no liability or obligation to AP hereunder for any
     infringement based upon (i) the combination of a PSC product with other
     products not produced by PSC, (ii) the use of other than a current version
     of the PSC product or (iii) the use of a version of a PSC product including
     modifications or alterations not expressly authorized by PSC under the
     terms and conditions of this Agreement or any addenda mutually executed by
     PSC and AP. The provisions of this Section 9.2 are in lieu of all other
     obligations, including without limitation the implied warranty of
     noninfringement, and state the sole, exclusive and entire liability of PSC,
     and the exclusive and entire remedy of AP, with respect to any claim of
     patent or copyright infringement by any PSC product. Further, to the extent
     AP is required in specific substantial foreign or worldwide transactions to
     provide indemnification concerning foreign patent or copyright rights to
     its customers with respect to AP's products, PSC will similarly indemnify
     against infringement under such foreign patent or copyright laws with
     regard to PSC products on the above stated terms. The determination of the
     requirement for such indemnification shall be made solely by AP in the
     exercise of its reasonable judgment."

9.   Section 11.8 of the Agreement shall be deleted in its entirety and replaced
     with the following:

     "The parties agree that the provisions of Sections 2, 4, 5, 6 and 9 shall
     survive the expiration or earlier termination of this Agreement for any
     reason."

10.  Section 11.9 of the Agreement shall be added as follows:

     "AP shall comply fully with all U.S. export laws including but not limited
     to the relevant regulations of the United States Department of Commerce and


                                       -4-
<PAGE>   5
     with the United States Export Administration Act to assure that the PSC
     products are not exported or re-exported by AP and/or AP's distributors and
     resellers in violation of United States law."

11.  For a period of time commencing on the effective date of the Agreement and
     expiring upon completion of a three (3) year period following the date of
     first commercial availability of AP's PROGRESS-based application (the
     "Term"), the special terms and conditions concerning pricing, production
     and distribution of PSC product licenses set forth in Attachment A hereto
     shall be in full force and effect. No later than six (6) months prior to
     the expiration of the Term, the parties shall, in good faith, commence
     negotiations for a new Attachment A with special terms and conditions
     concerning pricing, production and distribution of PSC product licenses
     and, no later than four (4) months prior to the expiration of the Term,
     shall make a determination as to whether an agreement for a new Attachment
     A can be reached between the parties.

     In the event the parties are unable to reach an agreement for a new
     Attachment A, for a period of six (6) months from the date such
     determination is made (such date being no later than four (4) months prior
     to the expiration of the Term), AP shall have the right to distribute PSC
     products in accordance with the special pricing, production and
     distribution provisions contained in the existing Attachment A. Thereafter,
     AP shall (a) cease making and distributing copies of PSC products from a
     master and (b) either return or certify the destruction of all masters
     provided by PSC pursuant to Section 1 of Attachment A or copies thereof;
     and, provided AP has not breached any material term or condition of the
     Agreement, this Second Amendment or Attachment A and failed to cure such
     breach within the time period specified in Section 10.2 of the Agreement,
     AP shall have the right to purchase PSC product licenses and services
     pursuant to the standard terms and conditions of the Agreement.

     In the event that the Agreement terminates or expires, notwithstanding the
     foregoing, no PSC product license distributed to a direct or indirect
     customer of AP prior to the termination of the Agreement shall be effected
     by such termination.

12.  Except as modified herein, all provisions of the Agreement are hereby
     confirmed and in all respects this Second Amendment and the Agreement shall
     be read and construed together as if the provisions of this Second
     Amendment had been part of the Agreement. No other modifications or
     additions are made to the Agreement. The Agreement as modified by this
     Second Amendment (including Attachment A to the Second Amendment) is the
     entire agreement between the parties regarding the subject matter thereof
     and supersedes and merges all prior proposals, understandings and all other
     prior


                                       -5-
<PAGE>   6
     agreements, oral and written, between the parties relating to this
     Agreement. Except as they may be modified or amended by this Addendum, the
     terms and conditions of the Agreement shall remain in effect until the
     termination of the Agreement. In the event of conflict or inconsistency
     between the terms and conditions of the Agreement and this Second
     Amendment, the terms and conditions of this Second Amendment shall govern.

IN WITNESS WHEREOF, this Second Amendment has been executed under seal for and
on behalf of each of the parties hereto by their duly authorized officers as of
the date first specified above.


SECURITY DYNAMICS, INC.                   PROGRESS SOFTWARE CORPORATION

By:      /s/ Arthur W. Coviello, Jr.      By:      /s/ Michael J. Crismorid
   -----------------------------------       -----------------------------------
Name:    Arthur W. Coviello, Jr.          Name:    Michael J. Crismorid
     ---------------------------------         ---------------------------------
Title:   Exec. V.P.                       Title:   VP - North American Sales
      --------------------------------          --------------------------------


                                       -6-

<PAGE>   1
                                                                    EXHIBIT 10.4



          Confidential Materials omitted and filed separately with the
       Securities and Exchange Commission. Asterisks denote such omissions.



            THIRD AMENDMENT TO PROGRESS SOFTWARE APPLICATION PARTNER
                                    AGREEMENT

THIRD AMENDMENT to the Progress Software Corporation Application Partner
Agreement is entered into as of the 15th day of November, 1996 ("Effective
Date"), by and between Progress Software Corporation, a Massachusetts
corporation with its principal place of business at 14 Oak Park, Bedford,
Massachusetts 01730 ("PSC"), and Security Dynamics Technologies, Inc., a
Massachusetts corporation with its principal place of business at 20 Crosby
Drive, Bedford, Massachusetts 01730 ("AP").

         WHEREAS, PSC and AP entered into a Progress Software Application
Partner Agreement effective as of December 5, 1994 (the "Agreement"); and

         WHEREAS, PSC and AP previously amended the Agreement by entering into
the Progress Software Application Partner Agreement Addendum effective as of
December 5, 1994 (the "Addendum") and a subsequent amendment to the Agreement
dated as of October 19, 1995 (the "Amendment"); and

         WHEREAS, PSC and AP entered into a Second Amendment to the Agreement
dated as of November 29, 1995 (the "Second Amendment") which completely
superseded the terms and conditions of the earlier Addendum and Amendment and
specified new special pricing and distribution terms and conditions in an
Attachment A relating to certain PSC products distributed by AP or AP's
distributors in conjunction with AP's PROGRESS(R)-based applications; and

         WHEREAS, PSC and AP desire to enter into a new Attachment A setting
forth certain modified special pricing and distribution terms and conditions
which shall, as of the Effective Date of this Third Amendment, completely
supersede the earlier Attachment A incorporated into the Second Amendment;

         NOW, THEREFORE, for good and valuable consideration, the receipt and
adequacy of which is hereby acknowledged, the parties hereto agree as follows:

1.   Capitalized terms used but not defined in this Third Amendment shall have
     the same meaning as in the Agreement or Second Amendment.

2.   Section 1.1 of the Agreement is modified by adding the following language
     to the end of the existing text: "In connection with AP's above specified
     marketing rights, during the term of this Agreement, PSC hereby grants to
     AP, and AP hereby accepts from PSC, a non-exclusive, non-transferable
     license to sublicense,
<PAGE>   2
     directly or indirectly through its authorized value-added reseller or
     distributor channels, PSC products to AP's customers, within the Territory
     and solely in accordance with the following terms and conditions:

     A.   All sublicenses of AP, and AP's distributors and value-added
          resellers, for PSC products shall be substantially in the form of the
          shrinkwrap license agreement (attached hereto as SCHEDULE A) or the
          bilateral executed license agreement (attached hereto as SCHEDULE B);
          and in any event shall provide that:

          i.   Title to software products of AP's supplier, including patents,
               copyrights and property rights applicable thereto, shall at all
               times remain solely and exclusively with such supplier;

          ii.  All terms and conditions contained in AP's license agreement, or
               the license agreement of AP's distributors or value-added
               resellers, limiting the liability of AP shall include language
               limiting the liability of AP's suppliers to the same extent and
               in the same manner.

          iii. All products of AP's suppliers provided to an AP customer in
               conjunction with AP's software application will not be used as
               standalone products or independently from AP's software
               application.

          Notwithstanding the above requirement that the sublicenses of AP, and
          AP's distributors and value-added resellers, for PSC products be
          substantially in the form of either the form set forth in Schedule A
          or Schedule B, the parties agree that AP shall have the right, in its
          sole discretion, to directly, or indirectly through its distributors
          or value-added resellers, modify the limitation of liability
          provisions in the end-user license agreement subject to AP's
          compliance with the terms and conditions set forth in (ii) above.

     B.   AP agrees to indemnify and hold harmless PSC and its officers,
          directors, employees, and agents, from and against any and all claims,
          demands, costs and liabilities (including all reasonable attorney's
          fees) of any kind whatsoever arising out of a claim by an end-user of
          AP or AP's distributors or value-added resellers against PSC and
          relating to AP's software application, provided that to the extent a
          claim is based upon an act or omission of PSC, AP's indemnification
          obligations under such circumstances shall be limited as follows:

               AP shall be required to indemnify PSC only to the extent that the
               claims, demands, costs, and liabilities exceed two times (2x) the
               total


                                       -2-
<PAGE>   3
               amount of royalties reported by AP to PSC for the PSC products
               which were delivered to the end-user and the subject of the
               end-user's claim and only up to a maximum amount equal to the
               limitation of AP's liability included in the end-user license
               agreement with such end-user.

          AP's indemnification obligations under this Section 1.1(B) shall be
          subject to PSC providing prompt notice, in writing, to AP of any claim
          or proceeding within the scope of this indemnification and giving AP
          sole control of the defense of any such claim or proceeding and all
          negotiations for its compromise or settlement. The limitation on AP's
          liability as set forth in Section 6.1 of this Agreement shall not
          apply to claims within the scope of the indemnification provisions set
          forth in this Section 1.1(B).

          Notwithstanding the foregoing, in the event a court of competent
          jurisdiction determines that the limitation of liability included by
          AP directly, or indirectly through its distributors or value-added
          resellers, in the end-user license agreement is unenforceable, AP
          shall have no obligation to indemnify PSC pursuant to this Section
          1.1(B).

     C.   AP shall not, directly or indirectly through its value-added resellers
          or distributors, make any warranties, express or implied, on behalf of
          PSC with respect to the PSC products or any other products supplied by
          AP to its customers. Nothing in this Section 1.1(C) shall limit or
          modify the warranty made by PSC to AP pursuant to Section 5.1 of this
          Agreement or the remedies available to AP as set forth therein.

     D.   The sublicense grant described in this Section 1.1 applies only to PSC
          products bundled with AP's PROGRESS-based software application and
          distributed by AP directly or indirectly through its value-added
          resellers and distributors.

     E.   Prior to the sublicense grant described herein, AP licensed its
          software to each AP customer subject to a bilateral executed license
          agreement between AP and its customer, except that AP was required to
          include a notice in its packaging informing the AP customer that use
          of the PSC products was subject to the PSC end-user license agreement
          also required to be included in AP's packaging. The following
          limitation on PSC's liability shall apply with respect to deliveries
          of PSC products to such customers prior to the Effective Date of the
          Third Amendment to this Agreement:

          (i)  If AP included the PSC end-user license agreement in AP's
               packaging in accordance with the procedures described above, PSC
               agrees that it will rely upon the PSC end-user license agreement
               by and between PSC and AP's customer to establish the limit on
               PSC's


                                       -3-
<PAGE>   4
               liability with respect to any claims AP's customer may have with
               respect to PSC products licensed by PSC pursuant to such PSC
               end-user license agreement or

         (ii)  If AP failed to include the PSC end-user license agreement in
               AP's packaging in accordance with the procedures described above,
               the limit on PSC's liability, if any, for any claims AP's
               customer may have relating to the PSC products delivered to such
               customer will be deemed to be the total license fee obtained by
               PSC from AP in connection with such PSC product delivery and AP
               shall indemnify and hold harmless PSC and its officers,
               directors, employees, and agents, from and against any and all
               claims, demands, costs and liabilities (including all reasonable
               attorney's fees) of any kind whatsoever arising out of a claim by
               a customer of AP or AP's distributors or value-added resellers
               against PSC to the extent such claims, demands, costs or
               liabilities exceed such limitation. The limitation on AP's
               liability as set forth in Section 6.1 of this Agreement shall not
               apply to claims within the scope of the indemnification
               provisions set forth in this Section 1.1(E)(ii). Without limiting
               the foregoing, in situations where AP did fail to include the PSC
               end-user license agreement in AP's packaging, AP shall be deemed
               to have had the right to sublicense the PSC product(s) to AP's
               customer and such failure shall not negatively impact the right
               of AP's customer to use the PSC products in conjunction with AP's
               PROGRESS-based application.

        The following limitation on PSC's liability shall apply with resect to
        subsequent deliveries of PSC products to each of AP's customers
        subject to AP's form of bilateral executed agreement in effect prior
        to the Effective Date of this Third Amendment:

        (iii)  PSC's liability, if any, to the AP customer will be limited to
               actual direct damages to the extent caused primarily by the acts
               or omissions of PSC in fulfilling its obligations under this
               Agreement subject to a maximum liability equal to two times (2x)
               the total amount of royalties reported by AP to PSC for the PSC
               products which were delivered to the AP customer and are the
               subject of the AP customer's claim and AP shall indemnify PSC in
               accordance with the terms and conditions set forth in Section
               1.1(B) above.

   F.   AP agrees that in the event than an end-user breaches the provisions
        of AP's end-user license agreement with respect to its use of the PSC
        products supplied thereunder, PSC shall be entitled to require, at its
        own expense, that all available remedies in relation to such breach be
        pursued, and AP shall, at PSC's expense in connection therewith,
        reasonably


                                       -4-
<PAGE>   5
          cooperate fully in pursuing such remedies, including, if reasonably
          necessary, by participating in a litigation or other proceeding as a
          party. Notwithstanding the foregoing, PSC shall, prior to taking any
          action to enforce the AP end-user license agreement against any AP
          end-user, notify AP in writing of any breach by such end-user of the
          terms and conditions of AP's end-user license agreement and AP shall
          have thirty (30) days from the receipt of such notice to investigate
          the circumstances relating to such claimed breach. If, at the end of
          such thirty (30) day period, the breach has not been cured, PSC may
          take such action as described above to enforce the terms and
          conditions of the AP end-user license agreement. If PSC reasonably
          determines that it is necessary to seek equitable relief prior to the
          expiration of the above-mentioned thirty (30) day notice period in
          order to protect its rights to the PSC products, PSC shall notify AP
          of such determination and the parties shall cooperate in the effort to
          obtain the necessary equitable relief. In the event that the products
          of both parties are adversely effected by such end-user's breach, then
          the parties shall cooperate in relation to their enforcement efforts
          and shall each bear their own expenses in connection with the
          enforcement of the AP end-user license with respect to their
          product(s) without prejudice to either party's settlement efforts. In
          the event AP grants to its value added resellers or distributors a
          right to sublicense AP's PROGRESS-based application (including PSC
          products), AP shall include in its agreement with such value added
          reseller or distributor, provisions sufficient to allow AP to carry
          out its obligations under this Section 1.1(F).

     G.   Neither AP nor its distributors or value-added resellers are
          authorized to grant to any customer a sublicense to use PSC products
          other than as provided herein.

     H.   Notwithstanding anything to the contrary in this Section 1.1, the
          provisions of this Section 1.1 (including but not limited to AP's
          indemnification obligations hereunder) shall in no way limit, modify
          or negate PSC's indemnification obligations relating to infringement
          claims based on the PSC products set forth in Section 9.2 herein."

3.   Section 3.3 of the Agreement shall be modified by adding the following to
     the end of the text of Section 3.3:

     "or bundle the PSC product, including system media and manuals, with AP's
     PROGRESS-based application subject to the sublicense grant set forth in
     Section 1.1 above."

4.   Section 6.1 of the Agreement (previously modified pursuant to Section 6 of
     the Second Amendment) shall be modified by deleting the first paragraph in
     its entirety and replacing it with the following:


                                       -5-
<PAGE>   6
   Confidential Materials omitted and filed separately with the Securities and
              Exchange Commission. Arterisks denote such omissions.



     "The liability of PSC, if any, to AP for damages arising out of this
     Agreement shall be subject to a maximum liability on an individual claim
     basis not to exceed two times (2x) the total royalties reported by AP to
     PSC for the PSC products which were delivered to the AP customer and are
     the subject of AP's claim, provided, however, that the aggregate liability
     of PSC under this Agreement shall not exceed the greater of (a) *********
     **************** or (b) the total amount of royalties reported by AP to
     PSC for PSC products delivered to AP customers during the ninety day period
     immediately prior to the date the claim is made by AP. In no event shall
     PSC's liability include incidental or consequential damages of any kind,
     even if PSC has been informed of the possibility of such damages.
     Notwithstanding the foregoing, the above-described limitation of liability
     shall not apply to (a) claims covered under the indemnification clause in
     Section 9.2 below or (b) claims of personal injury or death or damage to
     tangible property based solely on the operation of the PSC product,
     unaltered or modified only as expressly authorized by PSC under the terms
     and conditions of this Agreement or any addenda mutually executed by PSC
     and AP."

5.   Section 9.2 of the Agreement (added pursuant to Section 8 of the Second
     Amendment) shall be modified by deleting the fourth sentence in its
     entirety and replacing it with the following:

     "PSC shall have no liability or obligation to AP hereunder for any
     infringement based upon (i) the combination of a PSC product with other
     products not produced by PSC if such infringement claim would have been
     avoided but for such combination, (ii) the use of other than a current
     version of the PSC product or (iii) the use of a version of a PSC product
     including modifications or alterations not expressly authorized by PSC
     under the terms and conditions of this Agreement or any addenda mutually
     executed by PSC and AP."

6.   PSC and AP have negotiated a new Attachment A to the Second Amendment
     specifying special terms and conditions concerning pricing, production and
     distribution of PSC product licenses. Attached hereto is the new Attachment
     A incorporated by reference into this Third Amendment.

     The terms and conditions of the new Attachment A shall become effective on
     the Effective Date of this Third Amendment and shall remain in full force
     and effect until August 20, 2001 (the "Term"). The terms and conditions of
     the new Attachment A shall, as of the Effective Date of this Third
     Amendment, completely supersede the terms and conditions set forth in the
     prior Attachment A referenced in the Second Amendment.

     No later than six (6) months prior to the expiration of the Term, the
     parties shall, in good faith, commence negotiations for a replacement
     Attachment A with


                                       -6-
<PAGE>   7
     special terms and conditions concerning pricing, production and
     distribution of PSC product licenses and, no later than four (4) months
     prior to the expiration of the Term, shall make a determination as to
     whether an agreement for a replacement Attachment A can be reached between
     the parties.

     In the event the parties are unable to reach an agreement for a replacement
     Attachment A for a period of six (6) months from the date such
     determination is made (such date being no later than four (4) months prior
     to the expiration of the Term), AP shall have the right to distribute PSC
     products in accordance with the special pricing, production and
     distribution provisions contained in the current Attachment A. Thereafter,
     AP shall (a) cease making and distributing copies of PSC products from a
     master and (b) either return or certify the destruction of all masters
     provided by PSC pursuant to Section 1 of Attachment A, or copies thereof;
     and, provided AP has not breached any material term or condition of the
     Agreement, the Second Amendment, this Third Amendment or the Attachment A
     hereto, and failed to cure such breach within the time period specified in
     Section 10.2 of the Agreement, AP shall have the right to purchase PSC
     product licenses and services pursuant to the standard terms and conditions
     of the Agreement and to use any unused portion of the PSC product allowance
     described in Section 11 of Attachment A in connection with such purchases.
     Under no circumstances shall AP be entitled to a refund of any advance
     payments made to PSC pursuant to Section 11 of Attachment A.

     Nothing in this Section 2 shall alter or modify PSC's right, pursuant to
     Section 10.2 of the Agreement, to terminate the Agreement, the Second
     Amendment and this Third Amendment (including Attachment A) at any time if
     AP fails to cure a material breach of its obligations within thirty (30)
     days of receipt of written notice from PSC.

     In the event that the Agreement terminates or expires, notwithstanding the
     foregoing, no PSC product license distributed to a direct or indirect
     customer of AP prior to the termination of the Agreement shall be effected
     by such termination. Furthermore, no PSC product licenses acquired by AP
     for internal development and support of its PROGRESS-based application
     shall be effected by such termination provided that at the time of the
     above-mentioned termination or expiration of the Agreement, AP has not
     breached its obligations under the PSC end-user license agreement which
     accompanied such PSC products and AP continues to use the PSC products
     solely for internal development and support of its PROGRESS-based
     application in accordance with the terms and conditions of such PSC
     end-user license agreement.

7.   The new Attachment A attached hereto is incorporated by reference and made
     a part of this Third Amendment. Except as may be modified or amended by
     this Third Amendment, the terms and conditions of the Agreement (as
     previously amended by the Second Amendment) shall remain in effect until
     the termination


                                       -7-
<PAGE>   8
     of the Agreement. No other modifications or additions are made to the
     Agreement. The Agreement, Second Amendment and this Third Amendment
     constitutes the entire agreement between the parties with respect to the
     subject matter hereof. In the event of conflict among the terms and
     conditions of the Agreement, the Second Amendment, or this Third Amendment,
     the order of precedence shall be: first, this Third Amendment, second, the
     Second Amendment (which completely superseded the earlier Addendum and
     Amendment) and third and finally, the Agreement.

     IN WITNESS WHEREOF, this Third Amendment has been executed under seal for
and on behalf of each of the parties hereto by their duly authorized
representative as of the date first set forth above.


PROGRESS SOFTWARE CORPORATION

By: /S/ Michael J. Crismorid
   -------------------------
Name: Michael J. Crismorid
     ---------------------
Title: V.P. - North American Sales
      ----------------------------



SECURITY DYNAMICS TECHNOLOGIES, INC.

By: /S/ Linda E. Saris
   -------------------
Name: Linda E. Saris
     ---------------
Title: V.P. - Operations
      ------------------


                                       -8-
<PAGE>   9
                                   SCHEDULE A

               PLEASE READ CAREFULLY BEFORE OPENING THIS PACKAGE.
              BY OPENING THIS PACKAGE, YOU AGREE TO BE BOUND BY THE
                        TERMS OF THIS LICENSE AGREEMENT.


This is a legal agreement between the end user ("You") and Security Dynamics
Technologies, Inc. ("SDI").  This Agreement may be superseded by conflicting and
supplemental previously agreed to and signed Software License Agreement.

                                LICENSE AGREEMENT

1.       GRANT OF LICENSE.  SDI grants You a non-exclusive, non-transferable 
license, to use one copy of the following SDI software program in object form
only (the "SOFTWARE") in accordance with the instructions contained in its user
documentation.

2.       COPYRIGHT. The SOFTWARE, its component parts and user interface, and
associated documentation, are owned by SDI or its suppliers and are protected by
United States laws and international treaty provisions. Therefore, You must
treat the SOFTWARE and SDI documentation like any other copyrighted materials
except that you may (a) make copies of the SOFTWARE solely for backup and
archival purposes, and (b) make a reasonable number of copies of the user
documentation for your internal use only, provided all copyright, notices,
trademarks and other proprietary legends contained on the original SOFTWARE are
reproduced on the copies and that they are not removed from the original
SOFTWARE itself.

3.       OTHER RESTRICTIONS. You may not cause or permit disclosure, copy 
(except as permitted above), rent, license, sublicense, lease, disseminate or
distribute the SOFTWARE, by any means or in any form, without the prior written
consent of SDI. You may not use any component part of the SOFTWARE owned by an
SDI supplier as a standalone program or in any way independent from the SOFTWARE
provided to You by SDI. You may not modify, enhance, supplement, create
derivative work from, adapt, translate, reverse engineer, decompile, disassemble
or otherwise reduce the SOFTWARE to human readable form.

4.       LIMITED WARRANTY. SDI grants a limited warranty only to You that the 
SOFTWARE will perform substantially in accordance with the accompanying
documentation prepared by SDI for a period of 90 days from the date of receipt
by You. Any and all related and subsequent support issues shall be directed to
the party You purchased this license from, unless You have entered into a
separate support service contract directly with SDI.

5.       CUSTOMER REMEDIES.  SDI's entire liability and your exclusive remedy 
for breach of the Limited Warranty shall be of SDI's option, either (a) return
of the price paid by You solely for the SOFTWARE and which is returned to SDI
and determined by SDI not to be in compliance, or (b) repair and replacement of
the SOFTWARE which
<PAGE>   10
does not meet SDI's Limited Warranty. Any replacement SOFTWARE will be warranted
for the remainder of the original warranty period or 30 days, whichever is
longer. The Limited Warranty is void if failure of the SOFTWARE has resulted
from causes other than normal use, including but not limited to, unauthorized
repairs, maintenance or modifications to the SOFTWARE, accident, abuse,
negligence, misapplication, or failure to use the SOFTWARE in accordance with
the SDI user documentation. THE FOREGOING EXPRESS WARRANTIES ARE IN LIEU OF ALL
LIABILITIES OR OBLIGATIONS ON THE PART OF SDI. EXCEPT FOR THE FOREGOING EXPRESS
WARRANTIES MADE BY SDI, SDI AND ITS SUPPLIERS DISCLAIM ALL WARRANTIES, BOTH
EXPRESS AND IMPLIED, WITH RESPECT TO THE SOFTWARE, ITS QUALITY AND PERFORMANCE
AND THE ACCOMPANYING WRITTEN MATERIALS, INCLUDING BUT NOT LIMITED TO IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. The Limited
Warranty specified above gives You specific legal rights. You may have others
which vary from state to state. Some states do not allow limitations of duration
of an implied warranty, so the above may not apply to You.

6.       LIMITATION OF LIABILITY. SDI AND ITS SUPPLIERS' LIABILITY WILL BE 
LIMITED IN ANY EVENT TO ACTUAL DIRECT DAMAGES TO THE EXTENT CAUSED SOLELY BY THE
ACTS OR OMISSIONS OF SDI SUBJECT TO A MAXIMUM LIABILITY OF THE GREATER OF
$25,000 OR THE AMOUNT PAID FOR THE SPECIFIC PRODUCT OR SERVICE WHICH DIRECTLY
CAUSED SUCH DAMAGE. IN NO EVENT SHALL SDI OR ITS SUPPLIERS BE LIABLE FOR ANY
SPECIAL, INDIRECT, CONSEQUENTIAL, EXEMPLARY OR INCIDENTAL DAMAGES WHATSOEVER
(INCLUDING, WITHOUT LIMITATION, DAMAGE FOR LOSS OF BUSINESS PROFITS, BUSINESS
INTERRUPTION, LOSS, DAMAGE OR DESTRUCTION OF DATA, LOSS OF GOOD WILL, OR OTHER
PECUNIARY LOSS) WHETHER BASED IN CONTRACT OR TORT, INCLUDING NEGLIGENCE, ARISING
OUT OF THE USE OF OR INABILITY TO USE THE SOFTWARE, EVEN IF SDI OR ITS SUPPLIERS
HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Because some states do not
allow the exclusion or limitation of liability for consequential or incidental
damages, the above limitation may not apply to You.

7.       GENERAL. This Agreement constitutes the entire understanding between
SDI and You with respect to subject matter hereof. Terms and conditions as set
forth in any purchase order or other extraneous documents (except for previously
agreed to and signed to Software License Agreements) which differ from, conflict
with, or are not included in this License Agreement, shall not become part of
this Agreement unless specifically accepted by SDI in writing.

U.S. GOVERNMENT RESTRICTED RIGHTS LEGEND: The Software is provided with
RESTRICTED RIGHTS. Use, duplication, or disclosure by the U.S. Government is
subject to restrictions as set forth in subparagraph (c)1)(ii) of the Rights In
Technical Data and Computer Software clause at DFARS 252.227-7013 or
subparagraphs (c)(1) and (2) of the Commercial Computer Software-Restricted
Rights clause at 48 CFR 52.227-19, as


                                       -2-
<PAGE>   11
applicable. The contractor/manufacturer is Security Dynamics Technologies, Inc.,
20 Crosby Drive, Bedford, Massachusetts 01730-1437, U.S.A.

This Agreement shall be governed by the laws of the Commonwealth of
Massachusetts.

IF YOU DO NOT AGREE TO BE BOUND BY THE ABOVE LICENSE TERMS AND CONDITIONS,
PLEASE CONTACT THE PARTY YOU PURCHASED THIS LICENSE FROM FOR REFUND AND RETURN
INFORMATION RELATED TO THE NONACCEPTANCE OF THE LICENSE TERMS AND CONDITIONS.


                                       -3-
<PAGE>   12
                                   SCHEDULE B

                                SECURITY DYNAMICS


AGREEMENT #__________

                      SECURITY DYNAMICS TECHNOLOGIES, INC.
                       AGREEMENT FOR PURCHASE OF EQUIPMENT
                    AND LICENSE OF SOFTWARE (The "Agreement")


         This Agreement is made this       day of           , 19   by and
between SECURITY DYNAMICS TECHNOLOGIES, INC., a Delaware corporation with its
principal place of business at 20 Crosby Drive, Bedford, Massachusetts 01730
("SDI"), and
                                                                           , a
                        corporation, having its principal place of business at
                                                                            and
its affiliates and subsidiaries listed on Schedule A attached herein
(collectively the "Customer").

         The products sold and/or licensed under this Agreement consist of
hardware, software and firmware (the "Products"). Unless otherwise expressly
provided in this Agreement, all sales or licenses of Products by SDI are made in
accordance with and subject to the following terms and conditions. By its
execution of this Agreement the Customer agrees to purchase and SDI agrees to
sell and/or license the Products on the terms and conditions set forth herein
and in accordance with pricing and delivery terms separately agreed by the
parties. Subsequent orders for Products must be in writing and must reference
this Agreement by number.

1.       PAYMENT AND TAXES. Payment terms for the Products are net thirty (30) 
days from delivery of Product. Overdue payments shall be subject to a finance
charge of 1% per month (12% per year), plus all expenses incurred by SDI in
collecting such overdue amounts. Prices are exclusive of all taxes now in force
or enacted in the future, all of which shall be paid by the Customer, except for
such taxes as are imposed on SDI's income. The Customer is responsible for
obtaining and providing to SDI any certificates of exemption or similar document
required to exempt any tax liability.

2.       DELIVERY AND INSTALLATION. Customer shall be responsible for all
transportation and handling charges which shall be prepaid by SDI and added to
the invoice. Shipping dates are based upon prompt receipt of all necessary
information from the Customer. SDI shall not be liable for any delay in delivery
due to causes beyond its control. SDI will select methods and routes of
shipment. Title and risk of loss shall pass to Customer upon delivery to
Customer. All claims for non-conforming shipments must be made in writing to SDI
within thirty (30) days of delivery of goods to the Customer. Any claims not
made within that period shall be deemed waived and released. Unless otherwise
<PAGE>   13
agreed to in writing by SDI the Customer assumes sole responsibility for the
installation of Products at the Customer's premises.

3.       SOFTWARE LICENSE.

(a)  Definitions. "Software" shall mean all software and firmware, including (i)
all computer programs, in any form, incorporated in or used in connection with
the Products and provided by SDI to the Customer, consisting of a series of
instructions or statements in machine-readable, object code form only, and all
modifications thereto made by SDI which SDI provides to the Customer; and (ii)
all user documentation including manuals, handbooks and other written materials
relating to the Products provided by SDI to the Customer.

(b)  Grants of License. SDI hereby grants, and the Customer hereby accepts, a
perpetual, non-exclusive, non-transferable license, to use one copy of the
Software in accordance with the instructions contained in the Software's user
documentation. The Customer may make copies of the Software for backup, testing
or archival purposes only and may make a reasonable number of copies of the user
documentation for its internal use only provided the Customer also reproduces on
such copies any copyright notice, trademark and other proprietary legends
contained on the Software and does not remove them from the original.

(c)  Ownership, Intellectual Property Rights and Non-Disclosure.

  (i)  SDI or its suppliers own the Software. Title to the Software, including
patents, copyrights and property rights applicable thereto, shall at all times
remain solely and exclusively with SDI or its suppliers, and the Customer shall
not take any action inconsistent with such title. The Software is protected by
United States Copyright Law and international treaty provisions and SDI intends
that the Customer will use the Software only in accordance with the terms and
conditions of this Agreement.

 (ii)  The Customer shall not cause or permit disclosure (except to its
employees, agents and consultants with a "need to know" and who are bound, in
writing, by obligations of non-disclosure suitable to protect SDI's interests in
the Software but no less restrictive than the Customer's obligations herein),
copying (except as set forth in Section 3(b) herein), sublicensing or other
dissemination of the Software, in whole or in part, to any third party without
the prior written consent of SDI. The Customer may not use any component part of
the Software owned by an SDI supplier as a standalone program or in any way
independent from Software provided by SDI to Customer. The Customer shall not
modify, enhance, supplement, create derivative works from, reverse engineer,
reverse compile or otherwise reduce the Software to human readable form without
the prior written consent of SDI. The Customer shall promptly report to SDI any
violation of this clause and shall take such further steps as may be reasonably
requested by SDI to remedy any such violation and to prevent future violations.


                                       -2-
<PAGE>   14
(d)  Term of License. SDI may terminate the license of the Software granted
hereunder, by written notice to the Customer, if the Customer fails to comply
with this Section 3; or SDI may terminate the license of the Software granted
hereunder if a material breach of any other provision of this Agreement remains
uncured thirty (30) days after receipt of written notice from SDI. Within ten
(10) days after any termination of this license hereunder, the Customer shall
either return to SDI or certify to SDI that the original and all copies
(including partial copies) of the Software have been destroyed. Any further
obligations of the parties shall cease upon termination of this Agreement;
provided, that the terms and conditions of Sections 3(c), 5 and 7 continue in
full force and effect.

4.       WARRANTY.

(a)  SDI warrants that the Products shall in all material respects be free from
defects in material and workmanship and shall operate substantially in
conformance with SDI's specifications as set forth in its user documentation for
a period of ninety (90) days from the date of their receipt by the Customer.
SDI's sole obligation with respect to claims of non-conformance made within the
warranty period shall be, upon receipt of a problem report, at its option, to
correct all code errors determined by SDI to be such or to repair or replace any
item which it determines to be defective.

(b)  All SecurID Token Modules are guaranteed for the Token's purchased life,
unless subjected to reasonable use or physical abuse, to perform substantially
in conformance with the specifications set forth in its user documentation in
all material respects so long as the implementation and use requirements set
forth in the applicable Product's user documentation are maintained.

(c)  Limitations of Warranty. The foregoing warranties shall not apply if (i)
repair or replacement is required as a result of causes other than normal use,
including, without limitation, repair, maintenance or modification of the
Products by persons other than SDI or SDI-authorized personnel, accident, fault
or negligence of the Customer, operator error or improper use or misuse of the
Products, or causes external to the Products such as, but not limited to,
failure of electrical power or fire or water damage; or (ii) the Software is
used with software or equipment other than the computer processing units for
which it was designed. THE FOREGOING EXPRESS WARRANTIES ARE IN LIEU OF ALL
LIABILITIES OR OBLIGATIONS ON THE PART OF SDI. OTHER THAN THE EXPRESS WARRANTIES
MADE BY SDI AS SET FORTH IN THIS SECTION 4, SDI AND ITS SUPPLIERS DISCLAIM ALL
WARRANTIES WITH RESPECT TO THE PRODUCTS, EITHER EXPRESS OR IMPLIED, (INCLUDING,
WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE).

5.       LIMITATION OF LIABILITY.  EXCEPT AS PROVIDED IN THIS SECTION 5, SDI'S
AND ITS SUPPLIERS, LIABILITY WILL BE LIMITED IN ANY EVENT TO ACTUAL DIRECT
DAMAGES TO THE EXTENT CAUSED SOLELY BY THE ACTS OF OMISSIONS OF SDI SUBJECT TO A
MAXIMUM LIABILITY OF THE GREATER OF


                                       -3-
<PAGE>   15
$25,000 OR THE AMOUNT PAID FOR THE SPECIFIC PRODUCT OR SERVICE WHICH DIRECTLY
CAUSED SUCH DAMAGE. IN NO EVENT WILL SDI BE LIABLE FOR INCIDENTAL,
CONSEQUENTIAL, SPECIAL OR INDIRECT DAMAGES, LOST BUSINESS PROFITS, OR LOSS,
DAMAGE OR DESTRUCTION OF DATA, REGARDLESS OF THE FORM OF ACTION, WHETHER IN
CONTRACT, TORT (INCLUDING NEGLIGENCE), BREACH OF WARRANTY OR OTHERWISE, EVEN IF
SDI AND ITS SUPPLIERS HAVE BEEN ADVISED AS TO THE POSSIBILITY OF THE SAME. NO
LIMITATION AS TO DAMAGES FOR PERSONAL INJURY IS HEREBY INTENDED. No action,
whether in contract or tort, including negligence, arising out of or in
connection with this Agreement, may be brought by either party more than two
years after the cause of action has accrued. This Section 5 shall not apply to
awards based on any claim under the provisions of Section 6 or actions by SDI
for violations or infringements of SDI's rights relating to the Software
licensed hereunder.

6.       PATENT AND COPYRIGHT INDEMNITY. If notified promptly in writing of any 
action brought against the Customer based on a claim that the current, unaltered
release of the Products supplied to the Customer infringes a patent, copyright,
trade secret or other intellectual property right, SDI shall defend such action
at its expense and pay any costs (including reasonable attorney's fees) or
damages finally awarded in such action that are attributable to such claim,
provided that SDI shall have sole control of the defense of any such action and
all negotiations for its settlement or compromise. If a final injunction is
obtained against the Customer's use of any of the Products by reason of such
infringement, or if in SDI's opinion any of the Products supplied to the
Customer hereunder is likely to become the subject of a successful claim of
infringement, SDI shall, at its option and expense, either procure for the
Customer the right to continue using such Products, replace or modify the same
so that it becomes non-infringing, or grant the Customer a prorated refund
(depreciated on a straight-line five (5) year basis) for such Products and
accept its return. Notwithstanding the foregoing, SDI shall not have any
liability to the Customer under this Section 6 if the infringement or claim is
based upon (i) the use of any of the Products in combination with other
equipment or software that is not furnished by SDI if such claim would have been
avoided were it not for such combination, or (ii) Products that have been
modified or altered by the Customer. The Customer shall indemnify and hold SDI
harmless against any expense, judgment or loss for infringement of any patents,
copyrights, trademarks or other intellectual property rights as a result of
SDI's compliance with the Customer's designs, specifications or instructions. No
cost or expenses shall be incurred for the account of SDI without the prior
written consent of SDI. THE FOREGOING STATES THE ENTIRE LIABILITY OF SDI WITH
RESPECT TO INFRINGEMENT OF PATENTS, COPYRIGHTS, TRADE SECRETS OR ANY OTHER
INTELLECTUAL PROPERTY RIGHTS BY ANY OF THE PRODUCTS OR ANY PART THEREOF OR THEIR
OPERATION.

7.       INJUNCTIVE RELIEF.  Because unauthorized use or transfer of the 
Software, or any portion thereof, may diminish substantially the value of such
materials and may irrevocably harm SDI, if the Customer breaches the provisions
of Section 3(c) of this


                                       -4-
<PAGE>   16
Agreement, SDI shall (without limiting its other rights or remedies) be entitled
to equitable relief (including but not limited to injunctive relief) to protect
its interests.

8.       NOTICES. All notices given by either party to the other party under
this Agreement shall be in writing and personally delivered or sent by
registered or certified mail, return receipt requested, to the other party's
Manager of Contracts or Manager of Purchasing at its address set forth above.

9.       GENERAL.

(a)  In the event Customer exports any of the Products, Customer assumes the
responsibility for compliance with all applicable export regulations.

(b)  U.S. GOVERNMENT RESTRICTED RIGHTS LEGEND: The Software is provided with
RESTRICTED RIGHTS. Use, duplication, or disclosure by the U.S. Government is
subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in
Technical Data and Computer Software clause at DFARS 252.227-7013 or
subparagraphs (c)(1) and (2) of the Commercial Computer Software - Restricted
Rights clause at 48 CFR 52.227-19, as applicable. The contractor/manufacturer is
Security Dynamics Technology, Inc., 20 Crosby Drive, Bedford, Massachusetts
01730-1437, U.S.A.

(c)  The validity, construction and interpretation of this Agreement and the
rights and duties of the parties hereto shall be governed by and construed in
accordance with the laws of The Commonwealth of Massachusetts.

(d)  This Agreement constitutes the entire understanding between the Customer 
and SDI with respect to the subject matter hereof, and SDI makes no
representations to the Customer except as expressly set forth herein. Terms and
conditions set forth in any purchase order or other document provided by the
Customer to SDI which differ from, conflict with or are not included in this
Agreement shall not be part of any agreement between SDI and the Customer unless
specifically accepted by SDI in writing. This Agreement shall not be deemed or
construed to be modified, amended or waived, in whole or in part, except by
written agreement of the parties hereto.

(e)  The Customer may not assign this Agreement, or any of its rights or
obligations hereunder, without the prior written consent of SDI which consent
shall not be unreasonably withheld.

(f)  The failure of either party, in any one or more instances, to enforce any 
of the terms of this Agreement shall not be construed as a waiver of future
enforcement of that or any other term. If any provision of this Agreement shall
for any reason be held illegal or unenforceable, such provision shall be deemed
separable from the remaining provisions of this Agreement and shall in no way
affect or impair the validity or enforceability of the remaining provisions of
this Agreement.


                                       -5-
<PAGE>   17
(g)  Neither party shall be liable for failure to perform under this Agreement
due to causes beyond its control.

The undersigned hereby agree to the terms and conditions set forth herein and in
any Addendum attached hereto and signed by both parties.



Customer:_________________________________________________


Name:_____________________________________________________

Signed:___________________________________________________

Title:____________________________________________________

Date:_____________________________________________________


Security Dynamics Technologies, Inc.:


Name:_____________________________________________________

Signed:___________________________________________________

Title:____________________________________________________

Date:_____________________________________________________

     
                                       -6-
<PAGE>   18
          Confidential Materials omitted and filed separately with the
       Securities and Exchange Commission. Asterisks denote such omissions.


                       ATTACHMENT A TO THE THIRD AMENDMENT

1.   For each operating system environment specified in EXHIBIT A, PSC shall
     provide to AP, unless AP already has in its possession, a master disk set
     of PSC products generally available in such operating system environment
     and necessary to accomplish the AP customer configuration described below.
     Upon request thereafter, PSC shall provide one master disk set for each
     additional operating system environment supported by PSC or provide
     generally available updates to the original operating system environments
     at the then-current published PSC media handling charges. AP shall have a
     license to reproduce and distribute the PSC product(s) solely in
     conjunction with AP's PROGRESS(R)-based application(s) for the AP customer
     configurations described below. AP shall have sole responsibility for
     reproducing and distributing the PSC products to its customers. AP shall
     deliver one PSC programming book and one PSC language reference guide, or
     substitute PSC manuals as mutually agreed to in writing by PSC and AP,
     (each such guide, book or manual provided to AP at no additional charge
     other than shipping and handling) with each license to an AP customer. All
     additional PSC documentation will be provided to AP at a ********* discount
     off the then-current PSC price lists.

     These licenses are all restricted to AP's database environment and are not
     to be licensed for any application development or modifications other than
     outlined above.

2.   As of the Effective Date of the Third Amendment, AP declares that the
     software prices for AP's PROGRESS-based applications and services are as
     follows:

<TABLE>
<CAPTION>

LICENSE CATEGORY     #USERS          SOFTWARE LICENSE FEE     MAINTENANCE FEE
- ----------------     ------          --------------------     ---------------
<S>                  <C>             <C>                      <C>                                
      A              1-10            ******                   *******
      B              11-25           ******                   *******
      C              26-50           ******                   *******
      D              51-100          ******                   *******
      E              101-200         ******                   *******
      F              201-400         ******                   *******
      G              401-750         ******                   *******
      H              751-1000        ******                   *******
      I              1001-2500       ******                   *******
      J              2501-5000       ******                   *******
      K              5001-7500       ******                   *******
      L              7501-10000      ******                   *******
      M              10001-15000     ******                   *******
</TABLE> 
<PAGE>   19
          Confidential Materials omitted and filed separately with the
       Securities and Exchange Commission. Asterisks denote such omissions.

<TABLE>
<S>                  <C>             <C>                      <C>                 
      N              15001-20000     ******                   *******
      O              20001-30000     ******                   *******
      P              30001-40000     ******                   *******
                     40001>          **************************

STANDARD OPTIONS
Duress Alarm...............................        ******
</TABLE>

     The above AP prices are in U.S. dollars. AP agrees to notify PSC in writing
     of any application price changes or changes in AP's standard discount
     schedule (attached as EXHIBIT B) in AP's quarterly report immediately
     following the change.

3.   For each AP PROGRESS-based application license deployed with PSC products
     in accordance with Section 1 above, AP shall pay PSC a license fee equal to
     ****************** of the net price (less discount) charged by AP to its
     customer for the PROGRESS-based application in accordance with the price
     list set forth in Section 2 above (as modified for any AP price changes)
     and the AP discount schedule attached as EXHIBIT B (as modified for any AP
     discount changes). Notwithstanding the foregoing, the license fee shall be
     calculated by multiplying the above-mentioned percentage by the fee charged
     by AP to its customer or distributor based on the following:

     -    If AP sells a license for its PROGRESS-based application to an AP
          customer for up to 1,000 users (i.e., a license fall into one of the
          categories A through H listed above), the license fee owed to PSC
          shall be calculated by multiplying the above-mentioned percentage rate
          by the license fee set forth in AP's then-current commercial price
          list after the standard quantity discounts and/or GSA discounts have
          been deducted.

     -    If AP sells a license for its PROGRESS-based application to an AP
          customer for more than 1,000 users (i.e., a license falling into one
          of the categories I through Q listed above), the license fee owed to
          PSC shall be the amount obtained by multiplying the above-mentioned
          percentage rate by the actual license fee charged by AP to its
          customer.

          The ***************** royalty rate described above shall be subject to
          an increase to ***************** in accordance with the provisions set
          forth in Section 12 herein.


                                       -2-
<PAGE>   20
          Confidential Materials omitted and filed separately with the
       Securities and Exchange Commission. Asterisks denote such omissions.


4.   For each AP customer who obtains a license for PSC products in conjunction
     with AP's PROGRESS-based application license, the fee for PSC's initial
     year of maintenance shall be equal to *********************** of the
     maintenance fee collected by AP pursuant to the maintenance price list set
     forth in Section 2 above (as modified for any AP price changes). Subsequent
     years, maintenance shall be, on an annual basis, ********************* of
     the basic maintenance fee collected by AP; provided, however, that such
     amount shall not be less than *************** of the amount paid by AP to
     PSC in the immediately preceding year. Maintenance includes phone support,
     bug fixes and generally available updates not offered or priced as a
     separate product on PSC's price list.

     AP agrees to enact a centralized support staff to communicate technical
     issues with the PSC technical support staff located in Bedford,
     Massachusetts. AP shall provide PSC with a list of AP representatives
     designated by AP as authorized callers for PSC support. AP may update this
     list from time to time upon written notice to PSC. Neither PSC nor its
     subsidiaries will provide support directly to a customer of AP without
     first notifying AP.

     When AP upgrades one or more of its customers to a higher user count and
     charges such customer(s) an upgrade fee, these upgrade fees shall be
     subject to the percentage royalty provisions set forth in Sections 3 and 4
     herein for PSC's license and maintenance royalty fees respectively. AP
     shall include information about any such PSC license and maintenance
     royalties in accordance with the reporting requirements of Section 5
     herein.

     Notwithstanding anything to the contrary herein, PSC shall have no
     obligation to continue offering maintenance or technical support for any
     particular release of a PSC product once a subsequent release becomes
     generally available, except that PSC shall continue to offer Limited
     Technical Support (as defined below) to AP for a period of three (3) months
     following the date PSC's subsequent release becomes generally available.
     Further, in the event PSC retires any PSC product(s) on one or more
     operating system environments, PSC's only obligation to AP (or any of AP's
     customers) for maintenance or technical support of such retired PSC
     product(s) shall be to offer Limited Technical Support (as defined below)
     for a period of three (3) months following the date PSC designates such PSC
     product(s) as being retired. The "Limited Technical Support" shall be
     defined as technical support to address P-1 problems with the PSC
     product(s) which severely impact the operation or deployment of AP's
     PROGRESS-based application including situations where there is a database
     down, crashing of a server, or other serious


                                       -3-
<PAGE>   21
     performance problem substantially delaying the deployment of AP's
     PROGRESS-based application and such P-l problems are the direct result of
     the operation of the PSC product(s).

     PSC's obligation to provide Limited Technical Support for a prior release
     of a PSC product (as specified herein) shall be conditioned upon AP
     demonstrating best efforts to maintain forward compatibility of its
     PROGRESS-based application with new releases of PSC products and offer
     timely updates to its PROGRESS-based application (no later than six (6)
     months from the first availability date of the new PSC product release).

5.   Commencing with the month during which the Effective Date of this Third
     Amendment falls, AP shall at the end of each three month period provide the
     following reports to PSC:

     -    AP PROGRESS-based application deployment reports including for each
          copy of AP's PROGRESS-based application licensed to an AP customer,
          the customer ID, location, number of users, PSC serial number, AP's
          license fee (or upgrade license fee in the case of an upgrade to an
          existing license), zip code (if site location is in the U.S.), country
          and country postal code (if site location is outside the U.S.)

     -    Maintenance report including for each copy of AP's PROGRESS-based
          application under maintenance, a customer id, location, PSC serial
          number, and AP's annual maintenance fee (or AP's incremental increase
          in the maintenance fee in the case of an upgrade of an existing
          license)

     Such required reports will be due by the 15th day of the month following
     each three month period and shall cover copies of AP PROGRESS-based
     application licensed, upgraded and/or maintenance collected directly by AP
     or one of its authorized distributors or value-added resellers during the
     prior quarter. Payment in full for license and maintenance fees owed to PSC
     for the prior quarter are due with these reports.

6.   During the Term of this Attachment A, AP shall have the right to produce an
     unlimited number of copies of the PSC products described in Section 1 of
     this Attachment A and distribute them free of charge to AP locations solely
     for the purpose of demonstrating AP's PROGRESS-based application (or
     updates thereto) to existing or potential AP customers. As part of such
     demonstration activities, AP may install the above-referenced PSC products
     at an AP customer location solely for the above-mentioned demonstration
     purposes; provided however, that if AP intends to leave the demonstration
     software with the customer, AP shall first enter into a demonstration
     license agreement with such AP customer containing terms and conditions
     substantially similar to those set forth in AP's demonstration license
     agreement attached hereto as EXHIBIT C and at a minimum


                                       -4-
<PAGE>   22
          Confidential Materials omitted and filed separately with the
       Securities and Exchange Commission. Asterisks denote such omissions.


     will contain: (a) a license term of no more than thirty (30) days, (b) a
     requirement that the end-user, upon expiration or earlier termination of
     the demonstration license agreement, return the demonstration software to
     AP, (c) a disclaimer of warranty disclaiming all warranties relating to the
     demonstration software and (d) a conspicuous notice of any time-out,
     disabling, or other mechanisms, if any, limiting the functionality of the
     demonstration software.

     AP shall also have the right to produce and distribute, free of charge,
     copies of the PSC products described in Section 1 of this Attachment A to
     each of AP's support centers worldwide. Such PSC products shall be used by
     AP solely for the purpose of providing technical support to AP's customers.
     For each support center, the number of simultaneous users (defined as the
     number of simultaneous display devices running a PROGRESS product or
     accessing a PROGRESS database) of one or more copies of any of the PSC
     products shall collectively be limited to ******** simultaneous users.

7.   AP paid PSC a one-time non-refundable development license fee of
     **************************** and an initial maintenance fee of
     ******************* of the above-mentioned license fee. In exchange for
     these fees, PSC granted to AP a development license (described below) for
     each of the operating system platforms listed in EXHIBIT D along with
     twenty (20) PSC documentation sets, all of which were licensed to AP for
     installation at an AP site located in the United States solely for the
     development, testing and support of AP's PROGRESS-based application.
     Additionally, each such development license was covered under a twelve (12)
     month initial maintenance term. Bach PSC development license granted to AP
     was limited to 16 developers and included ProVISION clients, E/SQL,
     Database Servers, client networking and server networking products
     generally available on the applicable operating system platform. As of the
     Effective Date of the Third Amendment, PSC shall include in the
     above-mentioned license grant a PSC product development license for the
     SINIX operating system platform subject to a license fee of ****** and a
     maintenance fee of *************** of such license fee. Thereafter, at any
     time during the Term of this Attachment A, upon request, PSC shall provide
     a disk set for each additional requested operating system environment
     available on PSC's then-current price list in exchange for payment by AP of
     a license fee of ******* per operating system environment and a maintenance
     fee of ****************** of such license fee for the initial twelve (12)
     month maintenance term. These additional development licenses will be
     subject to the same product descriptions, user number limitations and
     geographical restrictions as described above. During


                                       -5-
<PAGE>   23
          Confidential Materials omitted and filed separately with the
       Securities and Exchange Commission. Asterisks denote such omissions.


     the Term of this Attachment A, renewal annual maintenance will be available
     at the same maintenance rates plus an increase not to exceed
     **************** of the maintenance fee for the immediately preceding
     maintenance term. PSC maintenance for the development licenses described in
     this Section 7 shall be subject to the same limitations as described in
     Section 4 above.

     During the Term of this Attachment A, AP shall have the right to purchase
     PSC development product licenses for installation at its development
     site(s) outside the United States in accordance with the provisions below.
     AP shall submit orders for PSC development product licenses to PSC's
     headquarters in Bedford, Massachusetts. The license fees for such PSO
     development product license(s) shall be subject to the then-current local
     country price list less a ******************* discount.

8.   PSC agrees that pricing terms and conditions applicable to AP shall be
     substantially similar to and no less favorable than those offered to
     similarly situated APs, taking into consideration sales volume, the AP
     vertical market, geographic territory, commitment level, and other business
     terms and conditions applying to those APs.

9.   All dollar amounts referenced in this Attachment A are in U.S. dollars and
     all payments by AP to PSC shall be made by AP in U.S. dollars.

10.  Notwithstanding anything to the contrary in this Attachment A, the special
     pricing, production and distribution terms and conditions set forth herein
     shall under no circumstances apply to third party product(s) distributed by
     PSC under license from such third part(ies).

11.  AP previously paid to PSC a one time nonrefundable conversion fee of
     **************************************. In exchange for payment of such
     conversion fee, PSC granted to AP the right to install at each Qualified AP
     Customer site the generally available PSC products required to convert the
     then-current AP licensed users at such Qualified AP Customer site as of
     September 18, 1995 over to AP's PROGRESS-based application. A "Qualified AP
     Customer" is an existing AP customer who, as of September 18, 1995, AP
     considered to be currently under AP maintenance and remains current under
     AP maintenance. During the term of this Attachment A, AP shall continue to
     have a right to exercise the above-mentioned conversion option for
     Qualified AP Customers (on or prior to September 18, 1995) who have not yet
     been converted to AP's PROGRESS-based application. The


                                       -6-
<PAGE>   24
          Confidential Materials omitted and filed separately with the
       Securities and Exchange Commission. Asterisks denote such omissions.


     above-mentioned conversion fee shall include the PSC maintenance fee for
     each converted Qualified AP Customer through the remainder of that
     Qualified AP Customer's current maintenance term in effect at the time of
     the conversion. Thereafter, all renewal maintenance fees shall be subject
     to the terms and conditions set forth in Section 4 above. Following the
     conversion of each Qualified AP Customer to AP's PROGRESS-based
     application, AP will be subject to all of the terms and conditions of this
     Attachment A with respect to such Qualified AP Customer including, but not
     limited to, the provisions regarding annual maintenance fees, upgrade fees,
     and reporting requirements set forth above.

12.  AP shall pay to PSC a nonrefundable advance payment in the amount of $3.75
     million in accordance with the payment schedule set forth below. In
     exchange for such payment, PSC will provide AP with a $3.75 million
     allowance against the license and initial maintenance fees for deployment
     licenses incurred by AP on or after the Effective Date of this Attachment A
     pursuant to Sections 3 and 4 above. AP's payment to PSC of $3.75 million
     shall be due and payable to PSC in accordance with the following schedule:

<TABLE>
                  <S>                    <C> 
                  $1,250,000             due by December 27, 1996
                  $1,250,000             due by January 24, 1997
                  $1,250,000             due by February 28, 1997
</TABLE>

     Once AP has completely used all of the $3.75 million allowance mentioned
     above, the royalty percentage rate used to calculate the deployment license
     fees owed to PSC under Section 3 shall be increased from
     ********************************* for the remainder of the Term of this 
     Attachment A.

13.  PSC and AP shall schedule two semi-annual product planning review sessions
     between senior executives and/or directors of PSC and AP to discuss and
     exchange information, subject to an appropriate form of mutual
     nondisclosure agreement, about each company's future product plans and
     requirements. Unless otherwise expressly specified in a written agreement
     executed on behalf of both parties, nothing communicated during such
     discussions shall be construed by either party as an obligation of the
     other party to make any modifications and/or additions to its software
     products. Each party shall have the right, in its sole discretion, to
     update its future product plans without advance notice to the other party.


                                       -7-
<PAGE>   25
          Confidential Materials omitted and filed separately with the
       Securities and Exchange Commission. Asterisks denote such omissions.


14.  Upon AP's request, PSC shall, at AP's expense, jointly develop with AP and
     deliver a customized course curriculum focused on the use of PSC product(s)
     within AP's PROGRESS-based application. If the customized course curriculum
     is: (a) developed from existing standard PROGRESS course curricula and
     course materials and (b) delivered at PSC's Bedford, Massachusetts
     headquarters to a minimum of six (6) and a maximum of twenty (20) students
     per class, then PSC will provide such course development and delivery
     services to AP at a ***************** discount per student per day off the
     then-current daily per student educational service rate. The educational
     service fee described above will cover all course materials, classroom
     space, PSC instructor time and student meals at PSC's facility during the
     scheduled course dates. The current educational service rate as of the
     Effective Date of this Amendment is ****/student/day. This rate is subject
     to change without advance notice to AP. AP may use up to *************
     ******************* of the product/maintenance allowance described in
     Section 12 above in paying the educational service fees described herein.
     Notwithstanding the foregoing, if the conditions set forth in (a) and (b)
     above are not satisfied, then the fees associated with the customized
     course curriculum development and delivery will be subject to mutual
     negotiation and agreement between the parties.

15.  The term of this Attachment A is specified in Section 2 of the Third
     Amendment. In the event of conflict or inconsistency between the terms and
     conditions of the Agreement, the Second Amendment (including the prior
     Attachment A), the Third Amendment or this Attachment A, the priority of
     governance shall be first the terms and conditions of this Attachment A,
     then the Third Amendment, then the Second Amendment and then the Agreement.

PROGRESS SOFTWARE CORPORATION             SECURITY DYNAMICS, INC.

By: /S/ Michael J. Crismorid              By: /S/ Linda E. Saris
   ---------------------------------         ---------------------------------
Name: Michael J. Crismorid                Name: Linda E. Saris
     -------------------------------           -------------------------------  
Title: V.P. - North American Sales        Title: V.P. - Operations
      ------------------------------            ------------------------------


                                       -8-
<PAGE>   26
                                    EXHIBIT A


OPERATING SYSTEM ENVIRONMENTS:

         NT
         SunOS
         Solaris
         HP-UX
         AIX
         SCO
         DEC UNIX
         SINIX

This list is for the Operating Systems as they exist in addition to all required
hardware platforms as they become available subject to the provisions of 
Section 1 of Attachment A.
<PAGE>   27
          Confidential Materials omitted and filed separately with the
       Securities and Exchange Commission. Asterisks denote such omissions.


                                    EXHIBIT B

                                  CONFIDENTIAL
                              FOR INTERNAL USE ONLY
                      SECURITY DYNAMICS TECHNOLOGIES, INC.
                                   PRICE SHEET
                             EFFECTIVE JULY 1, 1996


                        ACE/SERVER AND ACM/5100 DISCOUNTS


<TABLE>
<CAPTION>
                              CATEGORY A/B/C          CATEGORY D-P
        # PURCHASED             DISCOUNT %             DISCOUNT %
        -----------             ----------             ----------
        <S>                   <C>                     <C>                        
             1                      **                     **
             2                      **                     **
             3                      **                     **
             4                      **                     **
             5                      **                     **
             6                      **                     **
             7                      **                     **
             8                      **                     **
             9                      **                     **
            10                      **                     **
</TABLE>

        EXAMPLE:     5 units CATEGORY B = 5 x ********************** or
                     8 units CATEGORY E = 8 x ********************** or

                     For the 11th unit and up, use a *** discount for Categories
                     A/B/C and *** for Categories D-P
<PAGE>   28
          Confidential Materials omitted and filed separately with the
       Securities and Exchange Commission. Asterisks denote such omissions.


        EXAMPLE:    11 units CATEGORY D = 10 x ********************
                                      + 1 x ************************
                                      = ****************************
                                      or ******/system.


           SUPPLEMENTARY PRICING INFORMATION ... NOT FOR DISTRIBUTION
<PAGE>   29
                                    EXHIBIT C

SECURITY DYNAMICS ("SDI") NO-OBLIGATION EVALUATION REQUEST

We would like to take advantage of your 30 day FREE No-Obligation evaluation for
the SDI products listed below. Please send the necessary equipment, software and
documentation ("evaluation materials") to perform testing of the products. We
will adhere to the Terms and Conditions stated below.

      Name ___________________________ Title ____________________________

      Company ________________________ Phone # __________________________

      Street ____________________________________________________________

      City ______________________________ St. __________ Zip ____________

      CPU Mfg. ________________ Model __________ O/S Version ____________

EVALUATION TERMS AND CONDITIONS:

We understand the SDI evaluation materials are proprietary and as such will keep
all evaluation materials in confidence including the following: no disclosure to
anyone other than our employees with a need to know, no duplication of manuals
or software, no reverse engineering or reduction of any software to human
readable form, and no export of any evaluation materials. We understand that SDI
is the owner and retains title to all evaluation materials.

At conclusion of the evaluation period, we will either return an executed
License Agreement and purchase order, or return or destroy, in the case of
software, the evaluation materials, including documentation, and erase all
software from computer memory within ten days. The evaluation period will
commence upon our receipt of the evaluation materials. No evaluation materials
will be installed in any commercial or production application until a License
Agreement has been signed. Risk of loss and damage to the evaluation materials
shall remain with us until its return to SDI.

All evaluation materials are provided "as is" and in no event will SDI be liable
for any incidental, special, indirect, or consequential damages resulting from
this evaluation, and in any event, the cumulative liability of SDI will be
limited to the purchase price of the evaluation material.

THERE IS NO COMMITMENT ON OUR PART TO PURCHASE EVALUATION MATERIALS.

EVALUATION MATERIALS:

QUANTITY             MODEL                       DESCRIPTION
- --------             -----                       -----------
________     _____________________     ____________________________________
________     _____________________     ____________________________________
________     _____________________     ____________________________________
________     _____________________     ____________________________________

Signature_____________________________  Date_______________________________
<PAGE>   30
                                    EXHIBIT D


OPERATING ENVIRONMENTS:

In accordance with and subject to the terms and conditions set forth in Section
7 of Attachment A, AP has a development license for certain PSC products (as
described in Section 7) on the following operating system platforms:

        OSF      
        NT
        SunOS
        Solaris
        HP-UX
        AIX
        IRIX
        OS/400
        SCO
        NOVELL
        Open VMS
        OS/2
        
Subject to AP's payment of the additional fees set forth in Section 7 of
Attachment A, PSC shall add the SINIX operating system platform to the
above-mentioned list. Any additional platforms will be subject to the terms and
conditions set forth in Section 7 of Attachment A.

<PAGE>   1

                                                                      EXHIBIT 11


SECURITY DYNAMICS TECHNOLOGIES, INC
AND SUBSIDIARIES

COMPUTATION OF INCOME PER COMMON AND COMMON EQUIVALENT SHARE
THREE AND SIX MONTHS ENDED JUNE 30, 1997 AND 1996
(IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA)



<TABLE>
<CAPTION>

                                                                      THREE MONTHS ENDED                   SIX MONTHS
                                                                           JUNE 30,                       ENDED JUNE 30,
                                                                     1997            1996             1997             1996
                                                                   -------          -------          -------          -------

PRIMARY

<S>                                                                 <C>              <C>              <C>              <C>
Weighted average number of common and
  common equivalent shares outstanding:

    Common stock                                                    35,038           33,986           34,952           33,848

    Common equivalent shares resulting from
      stock options (treasury stock method)                          1,591            2,618            1,629            2,550
                                                                   -------          -------          -------          -------

    Total                                                           36,629           36,604           36,581           36,398
                                                                   =======          =======          =======          =======

    Net income                                                     $ 5,502          $ 2,884          $10,231          $ 5,052
                                                                   =======          =======          =======          =======

    Net income per common and common equivalent share              $   .15          $   .08          $   .28          $   .14
                                                                   =======          =======          =======          =======
</TABLE>




<TABLE>
<CAPTION>

 
FULLY DILUTED

Weighted average number of common and
common equivalent shares outstanding:

<S>                                                                 <C>              <C>              <C>              <C>   
    Common stock                                                    35,038           33,986           34,952           33,848

    Common equivalent shares resulting from
      stock options (treasury stock method)                          1,789            2,661            1,835            2,658
                                                                   -------          -------          -------          -------

    Total                                                           36,827           36,647           36,787           36,506
                                                                   =======          =======          =======          =======

    Net income                                                     $ 5,502          $ 2,884          $10,231          $ 5,052
                                                                   =======          =======          =======          =======

        Net income per common and common equivalent share          $   .15          $   .08          $   .28          $   .14
                                                                   =======          =======          =======          =======
</TABLE>

                                       20
                                       --







<TABLE> <S> <C>

<ARTICLE> 5
<CIK> 0000932064
<NAME> SECURITY DYNAMICS TECHNOLOGIES, INC.
<MULTIPLIER> 1,000
<CURRENCY> US DOLLARS
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<EXCHANGE-RATE>                                      1
<CASH>                                          21,828
<SECURITIES>                                    86,437
<RECEIVABLES>                                   17,941
<ALLOWANCES>                                       550
<INVENTORY>                                      3,189
<CURRENT-ASSETS>                               134,986
<PP&E>                                          17,068
<DEPRECIATION>                                   4,749
<TOTAL-ASSETS>                                 151,600
<CURRENT-LIABILITIES>                           16,493
<BONDS>                                              0
                                0
                                          0
<COMMON>                                           351
<OTHER-SE>                                     132,178
<TOTAL-LIABILITY-AND-EQUITY>                   151,600<F2>
<SALES>                                         56,097
<TOTAL-REVENUES>                                56,097
<CGS>                                           12,241
<TOTAL-COSTS>                                   42,245
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                    90
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                 16,321<F1>
<INCOME-TAX>                                     6,090
<INCOME-CONTINUING>                             10,231
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    10,231
<EPS-PRIMARY>                                     0.28
<EPS-DILUTED>                                     0.28
<FN>
<F1>INCOME-PRETAX INCLUDES $2,649 INTEREST AND OTHER INCOME.
<F2>TOTAL LIABILITY AND EQUITY INCLUDES $2,578 MINORITY INTEREST.
</FN>
        

</TABLE>


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