V ONE CORP/ DE
8-K, 1998-09-25
COMPUTERS & PERIPHERAL EQUIPMENT & SOFTWARE
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K
                                 CURRENT REPORT

                     PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


Date of Report  (Date of earliest event reported)  September 22, 1998
                                                   ------------------

                                V-ONE CORPORATION
- --------------------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)

                           Commission File No. 0-21511
                                               -------

Delaware                                                52-1953278
- ---------------------------------------------- ---------------------------------
(State or other jurisdiction of incorporation) (IRS Employer Identification No.)



20250 Century Boulevard - Suite 300
Germantown, Maryland                                         20874
- ---------------------------------------------- ---------------------------------
(Address of principal executive offices)                  (Zip Code)



               Registrant's telephone number, including area code:

                                 (301) 515-5200
                                 --------------



- --------------------------------------------------------------------------------
         (Former name or former address, if changed since last report.)




- --------------------------------------------------------------------------------

<PAGE>


Item 5.  Other Events.
         ------------

         On  December  8,  1997,  V-ONE  Corporation,   a  Delaware  corporation
("Company"),  issued  4,000  shares  of  Series A  Convertible  Preferred  Stock
("Series A Stock") to Advantage Fund II Ltd. ("Advantage") for $4 million in the
aggregate.  Advantage currently holds 2,462 shares of Series A Stock. Each share
of Series A Stock is convertible  into shares of Common Stock,  $0.001 par value
per share, of the Company  ("Common Stock") and was convertible into warrants to
purchase shares of Common Stock ("Series A Warrants").

         Due to the Maximum Share Amount  limitation found in Section 7(a)(1) of
the  Certificate  of  Designations  of the Series A Stock  ("Certificate"),  the
Company is not presently  obligated to convert  shares of Series A Stock held by
Advantage. On September 21, 1998, the Company sent an inconvertibility notice to
Advantage pursuant to Section 7(a)(2) of the Certificate  indicating that, as of
September 11, 1998, Advantage had the right to have some of its shares of Series
A Stock redeemed by the Company for the Share Limitation Redemption Price (which
term is defined in the Certificate).

          On September 22, 1998, the Company and Advantage entered into a waiver
agreement  ("Waiver  Agreement")  and Amendment No. 1 ("Amendment No. 1") to the
Registration  Rights  Agreement  dated as of December 3, 1997 by and between the
Company and Advantage (as amended, "Registration Rights Agreement"). Pursuant to
the Waiver Agreement, Advantage has until November 20, 1998 waived its right (1)
to  convert  or require  the  Company  to redeem  its Series A Stock,  (2) to an
adjustment to the "Ceiling Price" and the "Conversion Percentage" (as such terms
are defined in the  Certificate),  and (3) to the "Periodic  Amount" pursuant to
Section 2(c) of the Registration Rights Agreement (the term "Periodic Amount" is
defined in Section 2(c) of the Registration Rights Agreement).

         Under the Waiver  Agreement,  the Company  also has the right to redeem
the Series A Stock held by  Advantage  at any time until  November 20, 1998 at a
price of $1,300 per share. If the shares of Series A Stock are so redeemed,  all
accrued dividends will be waived by Advantage, without any additional payment by
the  Company.  The Company is currently  evaluating  its options for raising the
funds needed to redeem the shares of Series A Stock held by Advantage.

         Simultaneously with the execution of the Waiver Agreement,  the Company
granted to Advantage warrants to purchase 100,000 shares of the Company's Common
Stock at an exercise price of $2.125 per share and warrants to purchase  389,441
shares of the  Company's  Common Stock at an exercise  price of $4.77 per share,
all of which expire on September 21, 2003 (collectively  "Additional Warrants").
In addition,  under the terms of the Waiver Agreement,  Advantage will no longer
receive  Series A Warrants upon  conversion of the Series A Stock.  The Series A
Stock is  convertible  solely  into  shares of Common  Stock as  provided in the
Certificate  without any other adjustment to the terms of conversion as a result
of this change. Pursuant to the terms of Amendment No. 1, the Company has agreed
to file a  registration  statement  with  respect to the shares of Common  Stock
underlying the Additional Warrants.

                                       2
<PAGE>

         The descriptions of the Certificate,  the Waiver  Agreement,  Amendment
No. 1 and of the agreements and other  documents  described in this Form 8-K are
qualified in their  entirety by  reference to the exhibits  filed with this Form
8-K and with the Company's Form 8-K dated December 15, 1997.

         The following documents were included as exhibits to the Company's Form
8-K, as filed with the Securities and Exchange Commission, on December 15, 1997:

         1.   Certificate  of  Designations  of Series A  Convertible  Preferred
              Stock;

         2.   Subscription  Agreement dated as of December 3, 1997 between V-ONE
              Corporation and Advantage Fund II Ltd.; and

         3.   Registration  Rights Agreement dated as of December 3, 1997 by and
              between V-ONE Corporation and Advantage Fund II Ltd.

Item 7.  Financial Statements and Exhibits.

   (c)   Exhibits.

99.1     Inconvertibility Notice dated September 21, 1998.

99.2     Waiver Agreement,  dated as of September 22, 1998,  between the Company
         and Advantage.

99.3     Amendment  No. 1 dated as of  September  22,  1998 to the  Registration
         Rights Agreement between the Company and Advantage.

99.4     Warrants to purchase 100,000 shares of the Company's Common Stock.

99.5     Warrants to purchase 389,441 shares of the Company's Common Stock.


                                       3
<PAGE>


                                   SIGNATURES


         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.



Dated:  September 25, 1998



                                  V-ONE CORPORATION



                                  By: /s/ Charles B. Griffis
                                     ------------------------------------------
                                  Name:  Charles B. Griffis
                                  Title: Senior Vice President, Chief Financial
                                           Officer and Treasurer


<PAGE>



Exhibit Index

1.   Inconvertibility Notice dated September 21, 1998.

2.   Waiver Agreement,  dated as of September 22, 1998,  between the Company and
     Advantage.

3.   Amendment No. 1 dated as of September 22, 1998 to the  Registration  Rights
     Agreement between the Company and Advantage.

4.   Warrant to purchase 100,000 shares of the Company's Common Stock.

5.   Warrant to purchase 389,441 shares of the Company's Common Stock



V-ONE
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Security for a Connected World





                               September 21, 1998



Via Telecopier
- --------------

Advantage Fund II Ltd.
c/o CITCO
Kaya Flamboyan 9
Curacao, Netherlands Antilles


Ladies and Gentlemen:

         V-ONE Corporation,  a Delaware  corporation  ("Company"),  hereby gives
notice  to  Advantage  Fund  II  Ltd.,  a  British  Virgin  Islands  corporation
("Advantage"), pursuant to Section 7(a)(2) of the Certificate of Designations of
Series A Convertible  Preferred  Stock of the Company  ("Certificate")  that the
Company is not  currently  required  to convert  shares of Series A  Convertible
Preferred  Stock  ("Preferred  Shares") held by Advantage  into shares of Common
Stock of the Company due to the Maximum Share Amount limitation found in Section
7(a)(1)  of  the  Certificate.   In  particular,   this  letter  constitutes  an
Inconvertibility  Notice as described in Section  7(a)(2) of the Certificate and
the 20th  consecutive  trading day referred to in such section was September 11,
1998.

         Accordingly, pursuant to Section 7(a)(2) of the Certificate,  Advantage
may by written  notice to the Company  (within 10  business  days of the date of
this letter) have certain  Preferred Shares held by Advantage  redeemed at a per
share  price  equal to the Share  Limitation  Redemption  Price (as that term is
defined in the Certificate). Based on the Company's records, Advantage currently
holds  2,462  Preferred  Shares and would be  entitled  to redeem 619  Preferred
Shares at the Share  Limitation  Redemption Price if the date of redemption were
September  14, 1998.  The Company is not,  however,  required to redeem  certain
Preferred Shares held by Advantage if, prior to the date the Company is required
to redeem such shares,  Advantage is able to convert such shares  without regard
to  the  Maximum  Share  Amount  limitation  found  in  Section  7(a)(1)  of the
Certificate.

         Please contact the undersigned if you have any questions regarding this
notice.


                               Very truly yours,

                               /s/ Charles B. Griffis

                               Charles B. Griffis
                               Senior Vice President and Chief Financial Officer



cc:      Genesee International, Inc.

   V-ONE CORPORATION 20250 Century Boulevard, Suite 300, Germantown, MD 20874
                        301-515-5200 - Fax: 301-515-5280



                                WAIVER AGREEMENT

         This  Waiver  Agreement  ("Agreement")  dated  as of  the  22nd  day of
September,  1998,  by and  between  V-ONE  Corporation,  a Delaware  corporation
("Company"),  and Advantage Fund II Ltd., a British  Virgin Islands  corporation
("Fund").


                                   WITNESSETH

         WHEREAS,  pursuant to that certain  Certificate of  Designations  dated
December 8, 1997 ("Certificate"),  the Company authorized 4,000 shares of Series
A Convertible  Preferred Stock, par value $.001 per share  ("Preferred  Stock"),
the  rights,   preferences  and  privileges  of  which  are  set  forth  in  the
Certificate; and

         WHEREAS,  pursuant to that certain  Subscription  Agreement dated as of
December  3,  1997  by and  between  the  Company  and the  Fund  ("Subscription
Agreement"),  the Company  issued and sold to the Fund 4,000 shares of Preferred
Stock ("Advantage Shares"); and

         WHEREAS, the Fund currently holds 2,462 Advantage Shares; and

         WHEREAS, pursuant to the Certificate, the Fund has the right to convert
the Advantage Shares into a certain number of shares of Common Stock,  $.001 par
value per share, of the Company ("Common Stock") or in certain  circumstances to
require the Company to redeem the Advantage Shares; and

         WHEREAS,  the  Company  desires  to  induce  the Fund to  agree  not to
exercise certain of its rights under the Certificate;

         NOW,  THEREFORE,  in  consideration  of the  premises  and  the  mutual
covenants  contained  herein  and other  good and  valuable  consideration,  the
receipt and sufficiency of which are hereby  acknowledged,  the parties agree as
follows:

         1. For the period beginning on the date of this Agreement and ending on
November  20, 1998  ("Term") as long as the  Company is in  compliance  with its
obligations to the Fund under the Certificate,  the Subscription Agreement,  the
Registration  Rights  Agreement  dated as of  December  3,  1997,  as amended by
Amendment No. 1 (as  hereinafter  defined)  between the Company and the Fund (as
amended, the "Registration Rights Agreement"),  and any other agreements between
the Company and the Fund, as the  Certificate and such agreements are amended by
this Agreement:

             (a) the Fund  hereby  waives  its right to  convert  the  Advantage
         Shares into  shares of Common  Stock and  warrants  to purchase  Common
         Stock pursuant to Section 10(a) of the Certificate; and

             (b) the Fund  hereby  waives  its right to require  the  Company to
         redeem  the  Advantage  Shares  pursuant  to  Section  7(a)(2)  of  the
         Certificate.


<PAGE>

         2. The  parties  agree that the  Company  shall have the right,  at its
option,  to redeem  the  Advantage  Shares at a price of $1,300 per share at any
time  during  the  Term  without  regard  to  any  contrary  provisions  in  the
Certificate.  If the Advantage Shares are redeemed, all accrued dividends on the
Advantage Shares shall be waived by the Fund (without any additional  payment by
the Company).

          3. For the period beginning on December 8, 1997 and ending on November
20,  1998,  the Fund hereby  waives its right to an  adjustment  to the "Ceiling
Price"  and the  "Conversion  Percentage"  (as such  terms  are  defined  in the
Certificate)  and waives its right to the "Periodic  Amount" pursuant to Section
2(c) of the Registration Rights Agreement. The term "Periodic Amount" is defined
in such Section 2(c).

          4. The Fund agrees that none of the transactions  contemplated by this
Agreement  shall  give  rise  to  an  "Optional   Redemption  Event"  under  the
Certificate (as such term is defined in the Certificate).

          5. On the date  hereof,  the Fund shall  receive  (a)  warrants  ("New
Warrants") to purchase  100,000  shares of Common Stock at an exercise  price of
$2.125 per share,  the term of which New Warrants  shall expire on September 21,
2003,  and (b) warrants  ("Conversion  Warrants") to purchase  389,441 shares of
Common  Stock  at an  exercise  price  of  $4.77  per  share,  the term of which
Conversion Warrants shall expire on September 21, 2003. The New Warrants and the
Conversion Warrants  (collectively,  "Additional Warrants") shall be in the form
attached hereto as Exhibit A.

          6. The Fund  agrees  not to sell,  transfer  or  otherwise  dispose of
(collectively  "transfer") any of the Advantage Shares unless, prior to any such
proposed transfer,  (i) the Company is furnished with written notice of the name
and address of such transferee,  (ii) at or before the time the Company receives
the written notice  contemplated by clause (i) of this sentence,  the transferee
agrees in  writing  for the  benefit  of the  Company  to be bound by all of the
provisions  contained in this Agreement  (including without limitation Exhibit D
hereto)  following  such  transfer,  (iii) such transfer shall have been made in
accordance with the applicable requirements of the Subscription  Agreement,  the
Certificate, the Securities Act of 1933, as amended ("1933 Act"), and applicable
state  securities  laws,  and (iv) the further  transfer  of such the  Advantage
Shares by the transferee (and any subsequent transferees) is restricted pursuant
to the provisions of this Agreement.

          7. The Fund  agrees  that,  whether  or not the  Advantage  Shares are
redeemed  during the Term or otherwise,  if some or all of the Advantage  Shares
are, on or after the date hereof, converted into shares of Common Stock pursuant
to Section 10 of the  Certificate  or otherwise,  no "Warrants" (as such term is
defined in the Certificate) shall be issued to the Fund or any subsequent holder
of the Advantage Shares upon such conversion.  The Fund and the Company agree to
deliver a letter to the Company's  transfer agent and registrar  (American Stock
Transfer & Trust  Company),  in the form  attached  hereto as Exhibit D, to this
effect and  instructing  such  transfer  agent and  registrar to issue shares of
Common Stock upon exercise of the Additional Warrants.

                                       2
<PAGE>

          8. On the date hereof and as conditions to the  effectiveness  hereof,
the Company and the Fund shall enter into  Amendment  No. 1 in the form attached
hereto as Exhibit B ("Amendment No. 1") to the Registration Rights Agreement and
the Company shall  deliver to the Fund an opinion of  Kirkpatrick & Lockhart LLP
substantially in the form attached hereto as Exhibit C.

          9. The Fund represents and warrants to the Company that:

             (a) The  Advantage  Shares  are owned by the Fund free and clear of
         any and all liens and/or encumbrances;

             (b) Each of this  Agreement  and  Amendment No. 1 has been duly and
         validly  authorized by the Fund, this Agreement has been, and Amendment
         No. 1 will be, duly  executed  and  delivered on behalf of the Fund and
         this  Agreement is, and Amendment No. 1, when executed and delivered by
         the  Fund,  will  be,  valid  and  binding   obligations  of  the  Fund
         enforceable in accordance with their  respective  terms,  subject as to
         enforceability  to  general  principles  of equity  and to  bankruptcy,
         insolvency, moratorium and other similar laws affecting the enforcement
         of creditors' rights generally;

             (c) The Fund is acquiring the Additional Warrants and will purchase
         the shares of Common  Stock  issuable  on  exercise  of the  Additional
         Warrants   (collectively,   the  "Shares")  for  its  own  account  for
         investment only and not with a view to, or for sale in connection with,
         the distribution thereof;

             (d) On the date hereof the Fund is, and on each date the Additional
         Warrants are  exercised the Fund will be, an  "accredited  investor" as
         that term is defined in Rule 501 of the General  Rules and  Regulations
         under the 1933 Act by reason of Rule 501(a)(3);

             (e) All subsequent offers and sales of the Additional  Warrants and
         the Shares by the Fund shall be made pursuant to  registration  of such
         securities  being offered and sold under the 1933 Act or pursuant to an
         exemption from registration;

             (f) The Fund has no present  intention of  distributing  or selling
         the Additional Warrants or the Shares;

             (g) The Fund  understands  that the  Additional  Warrants are being
         offered and sold, and the Shares are being  offered,  to it in reliance
         on specific  exemptions  from the  registration  requirements of United
         States  federal  and  state  securities  laws and that the  Company  is
         relying upon the truth and accuracy of, and the Fund's compliance with,
         the  representations,   warranties,  agreements,   acknowledgments  and
         understandings  of the Fund set forth herein in order to determine  the
         availability  of such  exemptions  and the  eligibility  of the Fund to
         acquire the Additional Warrants and to receive an offer of the Shares;

                                       3
<PAGE>

                  (h) The Fund and its  advisors,  if any,  have been  furnished
         with all materials relating to the business, finances and operations of
         the  Company  and  materials  relating  to the  offer  and  sale of the
         Additional  Warrants  and  the  offer  of the  Shares  that  have  been
         requested by the Fund;  the Fund and its  advisors,  if any,  have been
         afforded  the  opportunity  to ask  questions  of the  Company and have
         received  complete  and  satisfactory  answers  to any such  inquiries;
         without limiting the generality of the foregoing,  the Fund has had the
         opportunity  to obtain and to review the Company's (1) Annual Report on
         Form 10-K for the fiscal year ended  December 31, 1997,  (2)  Quarterly
         Reports on Form 10-Q for the quarters ended March 31, 1998 and June 30,
         1998 and (3) proxy  statement for the Company's  1998 Annual Meeting of
         Stockholders (collectively,  "SEC Reports"), in each case as filed with
         the  Securities  and  Exchange   Commission   ("SEC");   and  the  Fund
         understands that its investment in the Shares involves a high degree of
         risk;

                  (i) The Fund has such  knowledge  and  experience in financial
         and business  matters that it is capable of  evaluating  the merits and
         risks of an investment in the Additional  Warrants and the Shares,  and
         is able to bear the economic risk of this  investment for an indefinite
         period of time; and

                  (j) The Fund  understands  that no United  States  federal  or
         state agency or any other government or governmental  agency has passed
         on or made any recommendation or endorsement of the Shares.

         10. The Company represents and warrants to the Fund that:

             (a) This  Agreement,  Amendment No. 1 and the  Additional  Warrants
         have been duly and validly  authorized by the Company,  this  Agreement
         has been, and Amendment No. 1 and the Additional Warrants will be, duly
         executed and delivered on behalf of the Company and this  Agreement is,
         and  Amendment  No. 1 and the  Additional  Warrants,  when executed and
         delivered by the Company, will be, valid and binding obligations of the
         Company enforceable in accordance with their respective terms,  subject
         as to enforceability to general principles of equity and to bankruptcy,
         insolvency, moratorium and other similar laws affecting the enforcement
         of creditors' rights generally;

             (b) The shares of Common  Stock,  when  issued on  exercise  of the
         Additional  Warrants,  will be duly and validly issued,  fully paid and
         nonassessable;

             (c) The execution and delivery of this Agreement by the Company and
         the  consummation  by the  Company of the  issuance  of the  Additional
         Warrants as contemplated  by this Agreement and the other  transactions
         contemplated  by this Agreement and Amendment No. 1 do not and will not
         conflict  with or result in a breach by the Company of any of the terms
         or provisions  of, or constitute a default  under,  the  certificate of
         incorporation  or  the  by-laws  of  the  Company,  or  any  indenture,
         mortgage,  deed of trust or other  material  agreement or instrument to
         which the Company is a party or by which it or any of its properties or
         assets  are bound that  would  have a  material  adverse  effect on the

                                       4
<PAGE>

         Company or any  applicable  law, rule or  regulation or any  applicable
         decree,  judgment or order of any court, United States federal or state
         regulatory  body,  administrative  agency  or other  governmental  body
         having jurisdiction over the Company or any of its properties or assets
         which would have a material adverse effect on the Company;

             (d)  No   authorization,   approval   or   consent  of  any  court,
         governmental body, regulatory agency,  self-regulatory organization, or
         stock exchange or market or the stockholders of the Company is required
         to be  obtained  by the Company  for (1) the  execution,  delivery  and
         performance  by the  Company  of this  Agreement  and  Amendment  No. 1
         (except such  authorization  of the SEC as is required  with respect to
         accelerating  the  effectiveness  of any  registration  statement filed
         pursuant  thereto),  (2) the  issuance  of the  Additional  Warrants as
         contemplated by this Agreement,  (3) the issuance of the Shares and (4)
         the  filing of an  additional  listing  application  with  Nasdaq  with
         respect to the Shares;

             (e) The SEC  Reports  do not  contain  any  untrue  statement  of a
         material fact or omit to state any material fact  necessary in order to
         make the statements  therein,  in the light of the circumstances  under
         which they were made,  not  misleading  other than (i) the existence of
         this Agreement and the transactions contemplated thereby, (ii) the fact
         that an  Inconvertibility  Notice was  required  to be sent to the Fund
         pursuant to Section 7(a)(2) of the Certificate (and the consequences of
         such  requirement),  and (iii) the  Company's  financial  condition and
         results of operations  subsequent to June 30, 1998. The Company has not
         filed any reports  with the SEC under the  Securities  Exchange  Act of
         1934, as amended (the "1934 Act"), since August 6, 1998;

             (f) Since  December  31, 1997,  there has been no material  adverse
         change and no material adverse development in the business, properties,
         operations,  condition  (financial or other),  results of operations or
         prospects of the Company, except as disclosed in the SEC Reports; and

             (g) The Company has timely  filed all required  forms,  reports and
         other  documents  with the SEC.  All of such  forms,  reports and other
         documents  complied,  when filed,  in all material  respects,  with all
         applicable requirements of the 1933 Act and the Securities Exchange Act
         of 1934, as amended.

         11. The Company agrees to file an additional  listing  application with
respect to the Shares with the Nasdaq  National Market within 7 days of the date
of this Agreement.

         12. The Fund acknowledges that (a) the Additional  Warrants and, except
as  provided  in  Amendment  No. 1, the  Shares  have not been and are not being
registered  under  the  provisions  of the 1933  Act and may not be  transferred
unless  (i)  subsequently  registered  thereunder  or (ii) the Fund  shall  have
delivered to the Company an opinion of counsel, reasonably satisfactory in form,
scope and substance to the Company,  to the effect that the Additional  Warrants
or the Shares to be sold or transferred  may be sold or transferred  pursuant to

                                       5
<PAGE>

an exemption from such registration;  (b) any resale of the Additional  Warrants
or the Shares made in reliance on Rule 144 promulgated under the 1933 Act may be
made only in accordance with the terms of said Rule and further, if said Rule is
not applicable,  any such resale of the Additional  Warrants or the Shares under
circumstances  in which the  seller,  or the person  through  whom the resale is
made, may be deemed to be an underwriter,  as that term is used in the 1933 Act,
may require compliance with some other exemption under the 1933 Act or the rules
and regulations of the SEC thereunder; and (c) neither the Company nor any other
person is under any  obligation  to register the Shares  (other than pursuant to
Amendment No. 1) or the Additional Warrants under the 1933 Act or to comply with
the terms and  conditions  of any exemption  thereunder  (other than pursuant to
Amendment No. 1).

         13. The Fund acknowledges and agrees that the Additional Warrants shall
bear   restrictive   legends  in   substantially   the  following  form  (and  a
stop-transfer order may be placed against transfer of the Additional Warrants):

              These securities have not been registered under the
              Securities Act of 1933, as amended (the "Act"),  or
              any state  securities  laws. The sale to the holder
              of these  securities  and of the  shares  of common
              stock  issuable upon  exercise of these  securities
              are not covered by a registration  statement  under
              the  Act or  registration  under  state  securities
              laws. These securities have been acquired, and such
              shares  of  common  stock  must  be  acquired,  for
              investment only and may not be sold, transferred or
              assigned  in the  absence  of  registration  of the
              resale thereof or an opinion of counsel  reasonably
              acceptable to the Company that such registration is
              not required.

          14.  The Fund  acknowledges  and agrees  that,  until such time as the
Shares have been  registered  for resale under the 1933 Act as  contemplated  by
Amendment  No. 1, the  certificates  for the Shares  issued on  exercise  of the
Additional   Warrants  shall  bear  restrictive  legends  in  substantially  the
following form (and a stop-transfer  order may be placed against transfer of the
Shares):

              The securities represented by this certificate have
              not been  registered  under the  Securities  Act of
              1933,   as  amended  (the  "Act"),   or  any  state
              securities  laws.  The sale to the  holder of these
              securities   is  not  covered  by  a   registration
              statement under the Act or registration under state
              securities   laws.   These   securities  have  been
              acquired for  investment  only and may not be sold,
              transferred   or   assigned   in  the   absence  of
              registration of the resale thereof or an opinion of
              counsel  reasonably  acceptable to the Company that
              such registration is not required.

          15. On the date  hereof,  the Company  shall pay the Fund $10,000 with
respect  to the  Fund's  costs  and  expenses  (including  attorneys'  fees  and

                                6
<PAGE>

expenses)  incurred  and to be  incurred  by the Fund in  connection  with  this
Agreement, Amendment No. 1 and the transactions contemplated hereby and thereby.

          16. This  Agreement  shall be governed by and  construed in accordance
with the laws of the State of New York  applicable  to contracts  made and to be
performed  in the State of New York.  The  parties  irrevocably  consent  to the
jurisdiction of the United States federal courts and the state courts located in
the State of Maryland in any suit or  proceeding  based on or arising under this
Agreement or relating to the Additional  Warrants or the Shares, and irrevocably
agree that all claims in respect of such suit or proceeding may be determined in
such courts. The parties  irrevocably waive the defense of an inconvenient forum
to the  maintenance of such suit or proceeding.  The parties  further agree that
service of process  upon either  party,  mailed by first  class  mail,  shall be
deemed in every respect  effective  service of process on such party in any such
suit or  proceeding.  Nothing  herein shall affect either party's right to serve
process in any other manner  permitted  by law.  The parties  agree that a final
non-appealable  judgment in any such suit or proceeding  shall be conclusive and
may be enforced in other  jurisdictions by suit on such judgment or in any other
lawful manner.

          17.  Failure by any party to exercise  any right or remedy  under this
Agreement or otherwise,  or delay by a party in exercising such right or remedy,
shall not operate as a waiver thereof.

          18.  Except  as  expressly  provided  herein,  all  of the  terms  and
provisions  of the  Certificate  shall  continue  in full  force and  effect and
nothing  contained  herein shall be deemed to constitute a waiver by the Fund of
any of its  rights  under  the  Certificate,  the  Subscription  Agreement,  the
Registration  Rights  Agreement or any other agreement among the Company and the
Fund.

          19. This Agreement may be executed in two or more  counterparts,  each
of which shall be deemed an original but all of which shall  constitute  one and
the same agreement.  This Agreement,  once executed by a party, may be delivered
to the other party hereto by facsimile  transmission of a copy of this Agreement
bearing the signature of the party so delivering this Agreement.


                                7
<PAGE>




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


                              V-ONE CORPORATION


                              By:  /s/      Charles B. Griffis
                                   ---------------------------------------------
                                   Charles B. Griffis, Senior Vice President
                                      and Chief Financial Officer


                              ADVANTAGE FUND II LTD.


                              By:  /s/      Kieran Conroy
                                   ---------------------------------------------
                                   Inter Caribbean Services Ltd.
                                   Secretary




                                       8
<PAGE>





                                                                       EXHIBIT A

THESE  SECURITIES HAVE NOT BEEN REGISTERED  UNDER THE SECURITIES ACT OF 1933, AS
AMENDED (THE "ACT"),  OR ANY STATE  SECURITIES  LAWS.  THE SALE TO THE HOLDER OF
THESE  SECURITIES  AND OF THE SHARES OF COMMON STOCK  ISSUABLE  UPON EXERCISE OF
THESE  SECURITIES ARE NOT COVERED BY A REGISTRATION  STATEMENT  UNDER THE ACT OR
REGISTRATION  UNDER STATE  SECURITIES LAWS. THESE SECURITIES HAVE BEEN ACQUIRED,
AND SUCH SHARES OF COMMON STOCK MUST BE ACQUIRED,  FOR  INVESTMENT  ONLY AND MAY
NOT BE SOLD,  TRANSFERRED  OR  ASSIGNED IN THE  ABSENCE OF  REGISTRATION  OF THE
RESALE  THEREOF OR AN OPINION OF COUNSEL  REASONABLY  ACCEPTABLE  TO THE COMPANY
THAT SUCH REGISTRATION IS NOT REQUIRED.

                                            Right to Purchase ________ Shares of
                                            Common Stock of V-ONE Corporation


                                V-ONE CORPORATION

                          Common Stock Purchase Warrant


         V-ONE  CORPORATION,  a Delaware  corporation  (the  "Company"),  hereby
certifies  that,  for value  received,  ADVANTAGE FUND II LTD., a British Virgin
Islands corporation,  or registered assigns (the "Holder"), is entitled, subject
to the terms set forth below,  to purchase  from the Company at any time or from
time to time after the date hereof, and before 5:00 p.m., New York City time, on
the Expiration Date (as defined herein),  fully paid and nonassessable shares of
Common  Stock,  $.001 par value,  of the  Company at a purchase  price per share
equal to the Purchase Price (as hereinafter defined).  The number of such shares
of Common Stock and the Purchase  Price are subject to adjustment as provided in
this Warrant.

         As used  herein  the  following  terms,  unless the  context  otherwise
requires, have the following respective meanings:

              (a) The term  "Business  Day" as used  herein  shall mean a day on
         which the New York Stock Exchange is open for business.

              (b) The term "Common Stock"  includes the Company's  Common Stock,
         $.001 par value per share,  as authorized  on the date hereof,  and any
         other  securities  into  which or for  which  the  Common  Stock may be
         converted  or  exchanged  pursuant  to  a  plan  of   recapitalization,
         reorganization, merger, sale of assets or otherwise.


<PAGE>

              (c) The term  "Company"  shall include V-ONE  Corporation  and any
         corporation  that shall  succeed to or assume the  obligation  of V-ONE
         Corporation hereunder.

              (d) The term "Expiration Date" refers to September 21, 2003.

              (e) The term "Other  Securities"  refers to any stock  (other than
         Common  Stock) and other  securities of the Company or any other person
         (corporate  or  otherwise)  that the Holder of this Warrant at any time
         shall be entitled to receive,  or shall have received,  on the exercise
         of this Warrant, in lieu of or in addition to Common Stock, or which at
         any time shall be issuable or shall have been issued in exchange for or
         in replacement of Common Stock or Other Securities  pursuant to Section
         4.

              (f) The term "Purchase Price" shall mean  $__________,  subject to
         adjustment as provided in this Warrant.

              1. EXERCISE OF WARRANT.

              1.1  EXERCISE  AT  OPTION  OF  HOLDER.  (a)  This  Warrant  may be
exercised  by the  Holder  hereof in full or in part at any time or from time to
time during the exercise period  specified in the first  paragraph  hereof until
the  Expiration  Date by  surrender of this  Warrant and the  subscription  form
annexed hereto (duly  executed) by such Holder,  to the Company at its principal
office,  accompanied by payment,  in cash or by certified or official bank check
payable to the order of the Company in the amount  obtained by  multiplying  (a)
the  number  of  shares  of  Common  Stock  designated  by  the  Holder  in  the
subscription  form by (b) the  Purchase  Price  then in effect.  On any  partial
exercise,  the Company will forthwith  issue and deliver to or upon the order of
the Holder  hereof a new Warrant or  Warrants of like tenor,  in the name of the
Holder hereof or as such Holder (upon  payment by such Holder of any  applicable
transfer  taxes) may request,  providing  in the  aggregate on the face or faces
thereof for the  purchase of the number of shares of Common Stock for which such
Warrant or Warrants may still be exercised.

              (b)  Notwithstanding  any other  provision of this Warrant,  in no
event  shall the holder of this  Warrant be  entitled  at any time to purchase a
number of shares of Common  Stock on exercise of this  Warrant in excess of that
number of shares  upon  purchase of which the sum of (1) the number of shares of
Common Stock  beneficially  owned by such holder and any person whose beneficial
ownership  of shares of Common  Stock  would be  aggregated  with such  holder's
beneficial  ownership of shares of Common Stock for purposes of Section 13(d) of
the  Securities  Exchange Act of 1934,  as amended  (the  "Exchange  Act"),  and
Regulation 13D-G thereunder (each an "Aggregated  Person" and collectively,  the
"Aggregated  Persons")  (other than shares of Common Stock  deemed  beneficially
owned through the  ownership of the  unexercised  portion of this  Warrant,  any
warrant  containing a restriction  similar to this Section  1.1(b) and shares of
Series A  Convertible  Preferred  Stock,  $.001 par value,  of the Company  (the
"Series A Convertible  Preferred Stock"), if any, beneficially owned by all such
Aggregated  Persons) and (2) the number of shares of Common Stock  issuable upon
exercise of the portion of this Warrant with respect to which the  determination
in this  sentence is being made,  would  result in  beneficial  ownership by any
Aggregated  Person of more than 4.9% of the outstanding  shares of Common Stock.
For purposes of the immediately  preceding sentence,  beneficial ownership shall


                                       2
<PAGE>

be  determined  in  accordance  with  Section  13(d)  of the  Exchange  Act  and
Regulation 13D-G thereunder,  except as otherwise  provided in clause (1) of the
immediately preceding sentence.

              1.2  NET  ISSUANCE.   Notwithstanding  anything  to  the  contrary
contained in Section 1.1, the Holder may elect to exercise this Warrant in whole
or in part by receiving  shares of Common Stock equal to the net issuance  value
(as  determined  below) of this Warrant,  or any part hereof,  upon surrender of
this Warrant at the principal office of the Company together with notice of such
election,  in which  event the  Company  shall  issue to the  Holder a number of
shares of Common Stock computed using the following formula:

                  X = Y (A-B)
                      ------   
                         A

         Where:   X = the number of shares of Common Stock to be issued to the 
                      Holder

                  Y = the number of shares of Common Stock as to which this 
                      Warrant  is to be exercised

                  A = the current fair market value of one share of Common Stock
                      calculated  as  of  the  last  trading  day  immediately 
                      preceding   the exercise of this Warrant

                  B = the Purchase Price

              As used herein,  current fair market value of Common Stock as of a
specified date shall mean with respect to each share of Common Stock the average
of the closing bid prices of the Common Stock on the principal securities market
on which  the  Common  Stock  may at the time be  traded  over a period  of five
Business Days consisting of the day as of which the current fair market value of
a share of Common  Stock is being  determined  (or if such day is not a Business
Day, the Business Day next preceding such day) and the four consecutive Business
Days prior to such day. If on the date for which current fair market value is to
be  determined  the Common Stock is not  eligible for trading on any  securities
market, the current fair market value of Common Stock shall be the highest price
per share  which the  Company  could  then  obtain  from a willing  buyer (not a
current  employee or  director)  for shares of Common Stock sold by the Company,
from authorized but unissued shares, as determined in good faith by the Board of
Directors  of the  Company,  unless  prior to such date the  Company  has become
subject to a merger,  acquisition or other  consolidation  pursuant to which the
Company is not the surviving  party, in which case the current fair market value
of the Common  Stock shall be deemed to be the value  received by the holders of
the  Company's  Common Stock for each share  thereof  pursuant to the  Company's
acquisition.

              2. DELIVERY OF STOCK CERTIFICATES,  ETC., ON EXERCISE.  As soon as
practicable  after the exercise of this  Warrant,  and in any event within three
days thereafter,  the Company at its expense (including the payment by it of any


                                       3
<PAGE>

applicable  issue or stamp  taxes)  will  cause to be  issued in the name of and
delivered to the Holder  hereof,  or as such Holder (upon payment by such Holder
of any applicable  transfer taxes) may direct, a certificate or certificates for
the  number of fully  paid and  nonassessable  shares of Common  Stock (or Other
Securities)  to which such Holder  shall be entitled on such  exercise,  in such
denominations  as  may be  requested  by  such  Holder,  plus,  in  lieu  of any
fractional share to which such Holder would otherwise be entitled, cash equal to
such fraction multiplied by the then current fair market value (as determined in
accordance with subsection 1.2) of one full share, together with any other stock
or other securities any property  (including  cash,  where  applicable) to which
such Holder is entitled upon such  exercise  pursuant to Section 1 or otherwise.
Upon exercise of this Warrant as provided  herein,  the Company's  obligation to
issue and  deliver the  certificates  for Common  Stock  shall be  absolute  and
unconditional,  irrespective  of any action or inaction by the Holder to enforce
the same,  any waiver or consent  with  respect to any  provision  thereof,  the
recovery of any  judgment  against any person or any action to enforce the same,
any failure or delay in the  enforcement of any other  obligation of the Company
to  the  Holder,  or  any  setoff,  counterclaim,   recoupment,   limitation  or
termination,  or any breach or alleged  breach by the Holder or any other person
of any obligation to the Company or any violation or alleged violation of law by
the Holder or any other person,  and irrespective of any other circumstance that
might otherwise limit such obligation of the Company to the Holder in connection
with such exercise.  If the Company fails to issue and deliver the  certificates
for the  Common  Stock to the  Holder  pursuant  to the first  sentence  of this
paragraph  as and when  required to do so, in addition to any other  liabilities
the Company may have hereunder and under  applicable  law, the Company shall pay
or  reimburse  the Holder on demand for all  out-of-pocket  expenses  including,
without limitation, fees and expenses of legal counsel incurred by the Holder as
a result of such failure.

              3.  ADJUSTMENT  FOR  DIVIDENDS  IN OTHER  STOCK,  PROPERTY,  ETC.;
RECLASSIFICATION, ETC. In case at any time or from time to time, all the holders
of Common Stock (or Other Securities)  shall have received,  or (on or after the
record date fixed for the  determination  of  stockholders  eligible to receive)
shall have become entitled to receive, without payment therefor,

              (a) other or  additional  stock or other  securities  or  property
         (other than cash) by way of dividend, or

              (b) any cash  (excluding  cash  dividends  payable  solely  out of
         earnings or earned surplus of the Company), or

              (c) other or  additional  stock or other  securities  or  property
         (including  cash)  by  way  of  spin-off,  split-up,  reclassification,
         recapitalization,   combination   of   shares  or   similar   corporate
         rearrangement,

other than additional shares of Common Stock (or Other  Securities)  issued as a
stock dividend or in a stock-split (adjustments in respect of which are provided
for in Section 5), then and in each such case the Holder of this Warrant, on the
exercise  hereof as  provided  in Section 1, shall be  entitled  to receive  the
amount of stock and other  securities and property  (including cash in the cases

                                       4
<PAGE>

referred  to in  subdivisions  (b) and (c) of this  Section 3) that such  Holder
would  hold on the date of such  exercise  if on the date  hereof the Holder had
been the holder of record of the number of shares of Common  Stock called for on
the face of this  Warrant  and had  thereafter,  during the period from the date
hereof to and including the date of such exercise,  retained such shares and all
such other or additional stock and other securities and property (including cash
in the  case  referred  to in  subdivisions  (b)  and  (c) of  this  Section  3)
receivable by the Holder as aforesaid  during such period,  giving effect to all
adjustments called for during such period by Section 4.

              4. EXERCISE UPON  REORGANIZATION,  CONSOLIDATION,  MERGER, ETC. In
case at any  time  or from  time  to  time,  the  Company  shall  (a)  effect  a
reorganization,  (b) consolidate with or merge into any other person, (c) effect
an exchange of  outstanding  shares of the Company for  securities  of any other
person or (d) transfer all or  substantially  all of its properties or assets to
any other person under any plan or arrangement  contemplating the dissolution of
the Company,  then,  in each such case,  as a condition of such  reorganization,
consolidation,  merger,  share exchange,  sale or conveyance,  the Company shall
cause  effective  provisions  to be made so that the Holder shall have the right
thereafter, by exercising this Warrant (in lieu of the shares of Common Stock of
the Company  purchasable and receivable upon exercise of the rights  represented
hereby immediately prior to such transaction) to purchase the kind and amount of
shares of stock and other  securities and property  (including  cash) receivable
upon  such  reorganization,  consolidation,  merger,  share  exchange,  sale  or
conveyance  by a holder of the number of shares of Common  Stock that might have
been  received  upon  exercise  of  this  Warrant   immediately  prior  to  such
reorganization,  consolidation,  merger,  share  exchange,  sale or  conveyance;
provided,  however, that in the event (a) the value of the stock,  securities or
other assets or property  (determined in good faith by the Board of Directors of
the  Company)  issuable or payable  with respect to one share of Common Stock of
the  Company  purchasable  and  receivable  upon  the  exercise  of  the  rights
represented  hereby  immediately  prior to such  transaction is in excess of the
Purchase   Price   hereof  in  effect  at  the  time  of  such   reorganization,
consolidation,  merger, share exchange,  sale or conveyance (after giving effect
to any  adjustment in such Purchase Price required to be made under the terms of
this  Warrant),  and  (b)  the  securities,  if  any,  to be  received  in  such
reorganization,  consolidation,  merger, share exchange,  sale or conveyance are
publicly traded,  then if the Company gives the Holder at least 20 Business Days
(or such lesser  period as the Company gives notice of such  transaction  to the
holders  of the  outstanding  shares  of  Common  Stock)  prior  notice  of such
reorganization,  merger,  share exchange,  sale or conveyance this Warrant shall
expire unless  exercised prior to such  reorganization,  consolidation,  merger,
share exchange, sale or conveyance.  Any such provision shall include provisions
for  adjustments  in respect of such  shares of stock and other  securities  and
property  that  shall  be as  nearly  equivalent  as may be  practicable  to the
adjustments  provided for in this Warrant.  The provisions of this Section shall
apply to successive reorganizations,  consolidations,  mergers, share exchanges,
sales and conveyances.

              5.  ADJUSTMENT  FOR  EXTRAORDINARY  EVENTS.  In the event that the
Company shall (i) issue  additional  shares of the Common Stock as a dividend or
other distribution on outstanding Common Stock, (ii) subdivide or reclassify its
outstanding  shares of Common Stock, or (iii) combine its outstanding  shares of
Common Stock into a smaller number of shares of Common Stock, then, in each such
event,  the Purchase  Price  shall,  simultaneously  with the  happening of such

                                       5
<PAGE>

event,  be adjusted by multiplying  the then Purchase  Price by a fraction,  the
numerator  of which  shall be the number of shares of Common  Stock  outstanding
immediately prior to such event and the denominator of which shall be the number
of shares of Common  Stock  outstanding  immediately  after such event,  and the
product so obtained shall  thereafter be the Purchase Price then in effect.  The
Purchase Price, as so adjusted,  shall be readjusted in the same manner upon the
happening of any successive  event or events described herein in this Section 5.
The Holder of this Warrant shall thereafter,  on the exercise hereof as provided
in  Section 1, be  entitled  to receive  that  number of shares of Common  Stock
determined  by  multiplying  the number of shares of Common  Stock that would be
issuable on such exercise as of immediately prior to such issuance by a fraction
of which (i) the numerator is the Purchase Price in effect  immediately prior to
such issuance and (ii) the  denominator  is the Purchase  Price in effect on the
date of such exercise.

              6. FURTHER  ASSURANCES.  The Company will take all action that may
be  necessary or  appropriate  in order that the Company may validly and legally
issue fully paid and nonassessable  shares of stock, free from all taxes,  liens
and charges  with  respect to the issue  thereof,  on the exercise of all or any
portion of this Warrant from time to time outstanding.

              7. NOTICES OF RECORD DATE, ETC. In the event of

              (a) any taking by the  Company  of a record of the  holders of any
         class of securities for the purpose of determining  the holders thereof
         who are  entitled to receive any dividend on, or any right to subscribe
         for,  purchase or otherwise acquire any shares of stock of any class or
         any other securities or property, or to receive any other right, or

              (b)   any   capital    reorganization   of   the   Company,    any
         reclassification  or  recapitalization  of  the  capital  stock  of the
         Company or any  transfer of all or  substantially  all of the assets of
         the Company to or  consolidation  or merger of the Company with or into
         any other person, or

              (c) any  voluntary  or  involuntary  dissolution,  liquidation  or
         winding-up of the Company,

then and in each such event the  Company  will mail or cause to be mailed to the
Holder, at least ten days prior to such record date, a notice specifying (i) the
date on which any such record is to be taken for the  purpose of such  dividend,
distribution  or right,  and stating the amount and character of such  dividend,
distribution  or  right,  (ii)  the  date  on  which  any  such  reorganization,
reclassification,    recapitalization,    transfer,    consolidation,    merger,
dissolution, liquidation or winding-up is to take place, and the time, if any is
to be fixed,  as of which  the  holders  of  record  of  Common  Stock (or Other
Securities) shall be entitled to exchange their shares of Common Stock (or Other
Securities) for securities or other property deliverable on such reorganization,
reclassification,    recapitalization,    transfer,    consolidation,    merger,
dissolution,  liquidation or  winding-up,  and (iii) the amount and character of
any stock or other  securities,  or  rights or  options  with  respect  thereto,
proposed to be issued or granted,  the date of such proposed  issue or grant and
the  persons or class of persons to whom such  proposed  issue or grant is to be
offered or made. Such notice shall also state that the action in question or the
record date is subject to the  effectiveness  of a registration  statement under

                                       6
<PAGE>

the Securities Act of 1933, as amended (the  "Securities  Act"),  or a favorable
vote of stockholders if either is required. Such notice shall be mailed at least
ten days prior to the date  specified in such notice on which any such action is
to be taken or the record date, whichever is earlier.

              8. RESERVATION OF STOCK,  ETC.,  Issuable on Exercise of Warrants.
The Company will at all times  reserve and keep  available,  solely for issuance
and  delivery on the  exercise of this  Warrant,  all shares of Common Stock (or
Other Securities) from time to time issuable on the exercise of this Warrant.

              9. Transfer of Warrant. This Warrant shall inure to the benefit of
the  successors  to and  assigns  of the  Holder.  This  Warrant  and all rights
hereunder,  in whole or in part, is  registrable  at the office or agency of the
Company  referred  to  below  by the  Holder  hereof  in  person  or by his duly
authorized attorney, upon surrender of this Warrant properly endorsed.

              10.  Register of  Warrants.  The Company  shall  maintain,  at the
principal  office of the Company (or such other  office as it may  designate  by
notice to the Holder  hereof),  a register in which the Company shall record the
name and address of the person in whose name this  Warrant has been  issued,  as
well as the name and address of each  successor and prior owner of such Warrant.
The Company  shall be entitled to treat the person in whose name this Warrant is
so registered as the sole and absolute owner of this Warrant for all purposes.

              11. EXCHANGE OF WARRANT.  This Warrant is  exchangeable,  upon the
surrender  hereof by the Holder  hereof at the  office or agency of the  Company
referred  to in  Section  10,  for  one or  more  new  Warrants  of  like  tenor
representing in the aggregate the right to subscribe for and purchase the number
of shares of Common Stock that may be subscribed for purchase hereunder, each of
such new Warrants to  represent  the right to  subscribe  for and purchase  such
number of shares as shall be  designated  by said  Holder  hereof at the time of
such surrender.

              12.  Replacement  of Warrant.  On receipt of  evidence  reasonably
satisfactory  to the Company of the loss,  theft,  destruction  or mutilation of
this Warrant  and, in the case of any such loss,  theft or  destruction  of this
Warrant,   on  delivery  of  an  indemnity   agreement  or  security  reasonably
satisfactory  in form and  amount  to the  Company  or,  in the case of any such
mutilation,  on surrender and  cancellation of this Warrant,  the Company at its
expense will execute and deliver, in lieu thereof, a new Warrant of like tenor.

              13.  Warrant  AGENT.  The Company  may,  by written  notice to the
Holder,  appoint an agent having an office in the United States of America,  for
the purpose of issuing  Common  Stock (or Other  Securities)  on the exercise of
this Warrant  pursuant to Section 1, exchanging this Warrant pursuant to Section
11, and replacing this Warrant  pursuant to Section 12, or any of the foregoing,
and thereafter any such issuance,  exchange or replacement,  as the case may be,
shall be made at such office by such agent.

              14. REMEDIES.  The Company  stipulates that the remedies at law of
the Holder of this Warrant in the event of any default or threatened  default by


                                       7
<PAGE>

the Company in the  performance  of or compliance  with any of the terms of this
Warrant  are  not  and  will  not  be  adequate,  and  that  such  terms  may be
specifically  enforced by a decree for the specific performance of any agreement
contained  herein or by an  injunction  against a violation  of any of the terms
hereof or otherwise.

              15. No Rights or Liabilities as a Stockholder.  This Warrant shall
not  entitle  the  Holder  hereof  to any  voting  rights  or other  rights as a
stockholder  of the Company.  No provision  of this  Warrant,  in the absence of
affirmative  action by the Holder hereof to purchase  Common Stock,  and no mere
enumeration herein of the rights or privileges of the Holder hereof,  shall give
rise to any liability of such Holder for the Purchase  Price or as a stockholder
of the  Company,  whether  such  liability  is  asserted  by the  Company  or by
creditors of the Company.

              16. NOTICES,  ETC. All notices and other  communications  from the
Company to the registered  Holder of this Warrant shall be mailed by first class
certified mail,  postage prepaid,  at such address as may have been furnished to
the Company in writing by such Holder or at the address shown for such Holder on
the register of Warrants referred to in Section 10.

              17. Investment Representations. By acceptance of this Warrant, the
Holder  represents  to the Company that this  Warrant is being  acquired for the
Holder's own account and for the purpose of  investment  and not with a view to,
or for sale in connection with, the distribution  thereof,  nor with any present
intention of  distributing  or selling the Warrant or the Common Stock  issuable
upon exercise of the Warrant.  The Holder  acknowledges that the Holder has been
afforded the  opportunity  to meet with the management of the Company and to ask
questions  of, and receive  answers  from,  such  management  and the  Company's
counsel about the business and affairs of the Company and  concerning  the terms
and  conditions  of the offering of this Warrant,  and to obtain any  additional
information,  to the extent that the Company possessed such information or could
acquire it  without  unreasonable  effort or  expense,  necessary  to verify the
accuracy of the information  otherwise obtained by or furnished to the Holder in
connection  with the offering of this Warrant.  The Holder asserts that it is an
"accredited  investor" as defined in Rule 501(a)(3) under the Securities Act, it
may be considered  to be a  sophisticated  investor,  is familiar with the risks
inherent in speculative  investments such as in the Company,  has such knowledge
and  experience  in  financial  and  business  matters  that  it is  capable  of
evaluating the merits and risks of the investment in this Warrant and the Common
Stock  issuable upon exercise of this Warrant,  and is able to bear the economic
risk of the  investment.  The Holder  acknowledges  and agrees that this Warrant
and, except as otherwise provided in the Registration  Rights Agreement dated as
of December 3, 1997 between the original  Holder and the Company,  as amended or
modified on the date hereof and as subsequently amended or modified from time to
time (the  "Registration  Rights  Agreement"),  the Common Stock  issuable  upon
exercise of this Warrant (if any) have not been (and at the time of  acquisition
by the  Holder,  will  not  have  been or will not  be),  registered  under  the
Securities  Act or under the  securities  laws of any state,  in  reliance  upon
certain  exemptive  provisions  of such  statutes.  The  Holder  recognizes  and
acknowledges  that  such  claims  of  exemption  are  based,  in part,  upon the
representations  of the Holder contained herein.  The Holder further  recognizes
and  acknowledges  that,  because this  Warrant  and,  except as provided in the
Registration  Rights Agreement,  the Common Stock issuable upon exercise of this
Warrant (if any) are unregistered,  they may not be eligible for resale, and may
only be resold in the future  pursuant to an  effective  registration  statement
under the Securities Act and any applicable  state  securities laws, or pursuant

                                       8
<PAGE>

to a valid exemption from such registration  requirements.  Unless the shares of
Common Stock have theretofore been registered for resale or are otherwise exempt
from  registration  under the  Securities  Act,  the Company may  require,  as a
condition  to the issuance of Common Stock upon the exercise of this Warrant (i)
in the case of an exercise in accordance with Section 1.1 hereof, a confirmation
as of the date of  exercise  of the  Holder's  representations  pursuant to this
Section 17 or (ii) in the case of an exercise  in  accordance  with  Section 1.2
hereof,  an  opinion  (in  form and  substance  reasonably  satisfactory  to the
Company) of counsel  reasonably  satisfactory  to the Company that the shares of
Common Stock to be issued upon such exercise may be issued without  registration
under the Securities Act.

              18.  LEGEND.  Unless  theretofore  registered for resale under the
Securities Act or otherwise exempt from registration under the Securities Act in
a manner that would no longer  require such legend when issued upon  exercise of
this Warrant and when resold thereafter, each certificate for shares issued upon
exercise of this Warrant shall bear the following legend:

              The  securities  represented  by this  certificate  have  not been
              registered  under the  Securities  Act of 1933,  as  amended  (the
              "Act"),  or any state  securities  laws. The sale to the holder of
              these securities is not covered by a registration  statement under
              the  Act  or  registration  under  state  securities  laws.  These
              securities  have been acquired for investment  only and may not be
              sold,  transferred or assigned in the absence of  registration  of
              the resale thereof or an opinion of counsel reasonably  acceptable
              to the Company that such registration is not required.

              19.  MISCELLANEOUS.  This  Warrant  and any  terms  hereof  may be
changed,  waived,  discharged  or  terminated  only by an  instrument in writing
signed by the party against which enforcement or such change, waiver,  discharge
or  termination  is sought.  This  Warrant  shall be  construed  and enforced in
accordance  with and governed by the internal laws of the State of New York. The
headings in this Warrant are for purposes of reference only, and shall not limit
or otherwise affect any of the terms hereof. The invalidity or  unenforceability
of any provision hereof shall in no way affect the validity or enforceability of
any other provision.



                                       9
<PAGE>


              IN WITNESS WHEREOF,  V-ONE  Corporation has caused this Warrant to
be executed on its behalf by one of its officers thereunto duly authorized.

Dated:                                  V-ONE CORPORATION


                                       By:
                                       ----------------------------------------
                                       Name: Charles B. Griffis
                                       Title:  Senior Vice President and Chief
                                                  Financial Officer



                                       10
<PAGE>


                              FORM OF SUBSCRIPTION

                   (To be signed only on exercise of Warrant)

TO V-ONE CORPORATION

         1.  The undersigned  Holder of the attached  original, executed Warrant
hereby elects to exercise its purchase  right under such Warrant with respect to
______________  shares of Common  Stock,  as  defined in the  Warrant,  of V-ONE
Corporation, a Delaware corporation (the "Company").

         2.  The undersigned Holder (check one):

________ (a) elects  to  pay  the  aggregate  purchase  price for such shares of
             Common  Stock (the  "Exercise  Shares")  (i) by lawful money of the
             United  States or the  enclosed  certified  or official  bank check
             payable in United States dollars to the order of the Company in the
             amount of  $___________,  or (ii) by wire transfer of United States
             funds to the account of the Company in the amount of $____________,
             which  transfer  has been made  before or  simultaneously  with the
             delivery of this Form of Subscription  pursuant to the instructions
             of the Company;

             or

________ (b) elects  to  receive  shares  of  Common  Stock having a value equal
             to the value of the Warrant  calculated in accordance  with Section
             1.2 of the Warrant.

         3. Please issue a stock  certificate or certificates  representing  the
appropriate  number of shares of Common Stock in the name of the  undersigned or
in such other names as is specified below:

         Name:

         Address:



Dated:____________ ___, _____
                                             (Signature must conform to name of
                                              Holder as specified on the face of
                                              the Warrant)




                                                          (Address)


                                       11
<PAGE>



                                                                  Exhibit B
                                                                       to
                                                                Waiver Agreement


                AMENDMENT NO. 1 TO REGISTRATION RIGHTS AGREEMENT

         THIS   AMENDMENT   NO.  1,  dated  as  of  September   22,  1998  (this
"Amendment"),  to the  Registration  Rights  Agreement,  dated as of December 3,
1997, by and between V-ONE CORPORATION,  a Delaware corporation (the "Company"),
and ADVANTAGE FUND II LTD., a British Virgin Islands  corporation  (the "Initial
Investor").

                              W I T N E S S E T H:

         WHEREAS,  the  Company  and  the  Initial  Investor  are  parties  to a
Registration  Rights Agreement,  dated as of December 3, 1997 (the "Registration
Rights  Agreement"),  pursuant  to which the Company  agreed to provide  certain
registration  rights under the  Securities  Act with respect to shares of Common
Stock  issuable  upon  conversion  of the  Preferred  Shares and the exercise of
common stock  purchase  warrants  issuable  upon  conversion  of such  Preferred
Shares;

         WHEREAS,  the Company and the Initial  Investor are parties to a Waiver
Agreement, dated the date hereof (the "Waiver Agreement"), pursuant to which the
Company is issuing to the Initial  Investor common stock purchase  warrants (the
"Additional   Warrants")  to  purchase  an  aggregate  of  489,441  shares  (the
"Additional Warrant Shares") of Common Stock; and

         WHEREAS,  the  Company  and the  Initial  Investor  wish to  amend  the
Registration  Rights Agreement to cover the shares of Common Stock issuable upon
exercise of the Additional Warrants;

         NOW  THEREFORE,  in  consideration  of  the  premises  and  the  mutual
covenants  contained  herein  and other  good and  valuable  consideration,  the
receipt and  sufficiency  of which are hereby  acknowledged,  the parties hereto
agree as follows:

         1. AMENDMENT OF REGISTRATION RIGHTS AGREEMENT.  The Registration Rights
Agreement is hereby amended as follows:

         (a) The definition of "Registrable  Securities" in Section 1 is amended
to read in its entirety as follows:


<PAGE>

                  "Registrable  Securities"  means the  Conversion  Shares,  the
         Warrant Shares, any shares of Common Stock issued by the Company to any
         Investor  as a dividend on the  Preferred  Shares,  and the  Additional
         Warrant Shares.

         (b) The definition of "Registration  Period" in Section 1 is amended to
read in its entirety as follows:

                  "Registration  Period"  means (i) with respect to  Registrable
         Securities  other than the Additional  Warrant Shares,  the period from
         the  Closing  Date to the  earlier of (A) the date which is three years
         after the Closing  Date and (B) the date on which  Investors  no longer
         beneficially own any such Registrable  Securities and (ii) with respect
         to the  Additional  Warrant  Shares,  the  period  from  the  date  the
         Additional  Warrants are issued pursuant to the Waiver Agreement to the
         earlier of (A) the date which is three years after such  issuance  date
         and (B) the date on which Investors no longer beneficially own any such
         Registrable Securities.

         (c) Section 2(a) is amended by deleting the second and third  sentences
of Section 2(a) and adding the following in lieu thereof:

         With  respect to the  Additional  Warrant  Shares,  the  Company  shall
         prepare,  and on or prior to the date  which is 45 days  after the date
         the Additional  Warrants are first issued, file with the SEC a separate
         Registration  Statement  on Form S-3  which  covers  the  resale by the
         Initial  Investor of the number of shares of Common Stock issuable upon
         exercise  of the  Additional  Warrants.  If at any time the  number  of
         shares of  Common  Stock  included  in (i) the  Registration  Statement
         required to be filed as provided in the first  sentence of this Section
         2(a)  shall be  insufficient  to cover  the  number of shares of Common
         Stock  issuable  on  conversion  in full of the  unconverted  Preferred
         Shares and exercise in full of the Warrants that have been issued prior
         to  the  date  of  Amendment  No.  1 to  this  Agreement  or  (ii)  the
         Registration  Statement  required to be filed as provided in the second
         sentence of this Section 2(a) shall be insufficient to cover the number
         of  shares  of  Common  Stock  issuable  on  exercise  in  full  of the
         Additional Warrants,  then promptly, but in no event later than 20 days
         after such  insufficiency  shall occur, the Company shall file with the
         SEC an additional  Registration  Statement on Form S-3 (which shall not
         constitute a  post-effective  amendment to the  Registration  Statement
         filed pursuant to the first or second sentence, as applicable,  of this
         Section  2(a))  covering such number of shares of Common Stock as shall
         be sufficient to permit such  conversion or exercise.  For all purposes
         of this  Agreement such  additional  Registration  Statements  shall be
         deemed to be the  Registration  Statements  required to be filed by the
         Company pursuant to Section 2(a) of this Agreement, and the Company and
         the Investors shall have the same rights and  obligations  with respect
         to such  additional  Registration  Statements  as they  shall have with
         respect to the initial Registration  Statements required to be filed by
         the Company pursuant to this Section 2(a). The  Registration  Statement
         required to be filed as provided in the second sentence of this Section
         2(a) may also cover the  resale of shares of Common  Stock held by such
         other  securityholders as the Company may reasonably desire upon notice
         thereof to the Initial Investor.

         (d) Section 2(c) is amended to add the  following  paragraph at the end
thereof:



                                       2
<PAGE>

                  The  foregoing  provisions  of Section 2(c) shall not apply to
         the Additional  Warrants or the Additional Warrant Shares. With respect
         to the Additional  Warrants and the Additional  Warrant Shares,  if (1)
         the Registration Statement covering the Additional Warrant Shares which
         is required to be filed by the Company  pursuant to the second sentence
         of Section  2(a) hereof is not ordered  effective by the SEC within 100
         days  after the date the  Additional  Warrants  are  issued or (2) such
         Registration  Statement  shall  cease  to be  available  for use by any
         holder  of  Additional  Warrants  which is named  therein  as a selling
         stockholder for any reason (including, without limitation, by reason of
         an SEC  stop  order,  a  material  misstatement  or  omission  in  such
         Registration   Statement   or  the   information   contained   in  such
         Registration   Statement  having  become  outdated),   then  upon  such
         occurrence and on each monthly  anniversary  thereof for so long as any
         such occurrence or circumstances  continue,  the Company shall promptly
         pay to the Initial Investor $10,000  (prorated for any partial month in
         which  such  amount  is  due);  provided,  however;  that  the  maximum
         aggregate  amount  paid  pursuant  to this  paragraph  shall not exceed
         $50,000.

         (e)  Section  3(a)  is  deemed  amended  such  that  the  filing  of  a
Registration Statement with the SEC with respect to Registrable Securities which
are Additional  Warrants  Shares shall be required to be made by the Company not
later than 45 days after the date the Additional Warrants are first issued.

         2.  EFFECTIVENESS  OF  THIS  AMENDMENT.  This  Amendment  shall  become
effective  on the date and time when the  Additional  Warrants  are  issued  and
delivered to the Initial Investor in accordance with the Waiver Agreement.

         3. CONFIRMATION OF REGISTRATION  RIGHTS AGREEMENT.  Except as expressly
amended by this Amendment,  all of the terms and provisions of the  Registration
Rights  Agreement  shall remain in full force and effect in accordance  with its
terms.

         4.  Miscellaneous.  (a)  Capitalized  terms used in this  Amendment and
defined herein shall have the respective  meanings provided herein.  Capitalized
terms used in this Amendment and not otherwise  defined in this Amendment  shall
have the respective meanings provided in the Registration Rights Agreement.

         (b) This Amendment may be executed in any number of counterparts and by
different parties hereto on separate  counterparts,  each of which  counterparts
when so executed  and  delivered,  shall be deemed to be an original  and all of
which  counterparts,  taken  together,  shall  constitute  but one and the  same
instrument.  This  Amendment  may be  executed  and  delivered  by a party  by a
telephone  line  facsimile  transmission  bearing a signature  on behalf of such
party transmitted by such party to the other party.


                                       3
<PAGE>


         IN WITNESS  WHEREOF,  the parties have caused this Amendment to be duly
executed by their  respective  officers  thereunto duly authorized as of day and
year first above written.

                                           V-ONE CORPORATION



                                         By:
                                             --------------------------------
                                                     Charles B. Griffis
                                                   Senior Vice President
                                                 and Chief Financial Officer



                                          ADVANTAGE FUND II LTD.



                                         By:
                                             ---------------------------------
                                             Inter Caribbean Services Ltd.
                                             Secretary



                                       4
<PAGE>

                                                                      EXHIBIT C






                               September 22, 1998

Advantage Fund II Ltd.
c/o CITCO
Kaya Flamboyan 9
Curacao, Netherlands Antilles

                                V-ONE CORPORATION
                                -----------------

Ladies and Gentlemen:

         We have acted as counsel to V-ONE Corporation,  a Delaware  corporation
(the "Company"),  in connection with the preparation,  execution and delivery of
the Waiver Agreement, dated as of September 22, 1998 (the "Agreement"),  between
the Company and Advantage  Fund II Ltd., a British  Virgin  Islands  corporation
(the "Fund").  Each capitalized term used herein shall, unless otherwise defined
herein or the context otherwise requires,  has the meaning assigned to such term
in the Agreement.

         In so acting,  we have  examined the  Agreement,  Amendment  No. 1, the
warrant  relating to the New Warrants and the warrant relating to the Conversion
Warrants (collectively,  "Transaction Agreements") and the Company's Certificate
of   Incorporation,   as  in  effect  on  the  date  hereof   ("Certificate   of
Incorporation"),  and we have examined and considered  such  corporate  records,
certificates  and matters of law and have made such inquiries of officers of the
Company,  as we have deemed necessary or appropriate as a basis for our opinions
set forth below.

         The opinions expressed herein are subject to the following assumptions,
limitations, qualifications and exceptions:

         (a) We have assumed, without independent verification,  the genuineness
and authenticity of all signatures and original documents, the legal capacity of
all natural persons,  the conformity to originals of all documents  submitted to
us as copies thereof, the due authorization,  execution and delivery (other than
due  authorization,  execution,  and delivery by the Company) of the Transaction
Agreements,  the  due  authorization,   execution  and  delivery  of  which  are
prerequisite to the  effectiveness  of such  documents,  and that such documents
constitute  legal,  valid and binding  obligations of the parties thereto (other
than the Company).

         (b) We  have  assumed  that  each  of the  parties  to the  Transaction
Agreements  other than the Company  (the "Other  Parties")  has the legal right,
capacity  and power to enter into,  enforce  and perform all of its  obligations


<PAGE>
Advantage Fund II Ltd.
September 22, 1998
Page 2



under  the  Transaction  Agreements.   Furthermore,  we  have  assumed  the  due
authorization  by each of the Other Parties of all requisite  action and the due
execution  and  delivery  of the  Transaction  Agreements  by each of the  Other
Parties, and that the Transaction  Agreements are valid and binding upon each of
the Other  Parties and are  enforceable  against each Other Party in  accordance
with their terms.

         We express no opinion as to the laws of the United States of America or
any other  jurisdiction,  other than United  States  federal law,  except,  with
respect to paragraphs (1), (2), (3), (4), (5), (8), (9) and (10) below, the laws
of the State of Delaware  and,  with respect to paragraph  (3) below and, to the
extent applicable,  paragraphs (4), (5), (6), (8), (9) and (10), the laws of the
State of New York.  Notwithstanding  the foregoing,  we express no opinion as to
the  securities or "blue sky" laws of any state,  territory or possession of the
United States of America.

         With  respect  to  Section  1.1(b)  of  the  New  Warrants  and  of the
Conversion Warrants (collectively "Additional Warrants"), we understand that the
Fund will reach its own  conclusion  as to whether the Fund and its  transferees
will or will not be subject to the reporting  requirements  of Section 13 of the
Securities  Exchange Act of 1934,  as amended  ("1934  Act"),  and the rules and
regulations promulgated thereunder and, consequently,  the Fund has not asked us
to express, and we do not express, any opinion on such matter.

         In  furnishing  the  opinion  regarding  the valid  existence  and good
standing of the Company,  we have relied solely upon good standing,  certificate
of status of foreign  corporation and franchise tax board certificates issued by
representatives of the States of Maryland,  New York and California on September
21,  1998,  September  17,  1998,  September  18, 1998 and  September  21, 1998,
respectively,  and by  representatives of the State of Delaware on September 18,
1998.

         References in this opinion to "our knowledge" or "known to us" mean the
conscious  awareness  of  attorneys  currently  with this firm who have  devoted
substantive  attention  to matters  for the  Company,  without  any  independent
inquiry or investigation regarding such matters.

         Based upon and subject to the foregoing, we are of the opinion that:

                  (1) The  Company  is a  corporation  duly  organized,  validly
         existing and in good  standing  under the laws of the State of Delaware
         and has all  requisite  corporate  power and  authority  to conduct its
         business as currently conducted. The Company has no subsidiaries;

                  (2)  The  Company  has  all  requisite   corporate  power  and
         authority  to  enter  into  the  Agreement,  Amendment  No.  1 and  the
         Additional  Warrants and to consummate  the  transactions  contemplated

<PAGE>

Advantage Fund II Ltd.
September 22, 1998
Page 3


         thereby.  The  execution,  delivery and  performance  of the Agreement,
         Amendment No. 1 and the Additional Warrants and the consummation of the
         transactions  contemplated  thereby  have been duly  authorized  by all
         necessary corporate action on the part of the Company;

                  (3) The Agreement, Amendment No. 1 and the Additional Warrants
         have been duly  executed and  delivered  by the Company and  constitute
         legal,  valid  and  binding  obligations  of the  Company,  enforceable
         against  the  Company  in  accordance  with  their  respective   terms;
         provided,  however,  that  the  opinion  as to  enforceability  of  the
         Agreement,  Amendment No. 1 and the  Additional  Warrants is subject to
         bankruptcy,  insolvency,   reorganization,   moratorium,   liquidation,
         receivership,  fraudulent  conveyance,  fraudulent  transfer  or  other
         similar laws relating to, or affecting  generally,  the  enforcement of
         creditors'  rights and  remedies or by other  equitable  principles  of
         general application and provided further,  however,  that we express no
         opinion  as  to  the   enforceability   of  any   indemnification   and
         contribution  provisions contained in the Registration Rights Agreement
         as amended by Amendment No. 1;

                  (4) The shares of Common  Stock  issuable  on  exercise of the
         Additional  Warrants  ("Shares")  have been duly  authorized  and, when
         issued upon exercise of the Additional Warrants, in accordance with the
         terms of the Additional Warrants will be validly issued, fully-paid and
         non-assessable;

                  (5) As of the date hereof, the authorized capital stock of the
         Company  consists of (a)  33,333,333  shares of Common  Stock,  and (b)
         13,333,333  shares of  Preferred  Stock of which 4,000 shares have been
         designated  Series  A  Convertible   Preferred  Stock.   There  are  no
         preemptive  rights  of any  stockholder  of the  Company,  as such,  to
         acquire the Shares or the Additional  Warrants.  To our knowledge,  (a)
         the Common Stock is listed for trading on the Nasdaq  National  Market,
         (b) no  suspension  of  trading  in the  Common  Stock is in  effect or
         threatened, and (c) the Company has not been notified since October 24,
         1996 by  Nasdaq  of any  failure  to meet the  criteria  for  continued
         listing and trading on Nasdaq.  The authorized  shares of Common Stock,
         and  outstanding  options,  warrants and other  securities  to purchase
         Common  Stock  conform in all  material  respects  to the  descriptions
         thereof  contained  in the  registration  statements  and  reports  the
         Company has filed with the Securities and Exchange  Commission ("SEC");
         provided,  however, that the descriptions of such options, warrants and
         other securities do not describe any anti-dilution adjustments that may
         be required as a result of the issuance of the Shares or the Additional
         Warrants and provided further,  however,  that such descriptions do not
         describe (a) any options that have been issued under the Company's 1996
         Incentive  Stock Plan or 1998 Incentive Stock Plan, or any amendment to
         the terms of such options,  since the  Company's  Annual Report on Form
         10-K for the year ended  December  31,  1997 or  warrants  to  purchase

<PAGE>
Advantage Fund II Ltd.
September 22, 1998
Page 4



         20,000 shares of Common Stock issued to two of the Company's  directors
         in August 1998;

                  (6) To our  knowledge,  except with respect to the  agreements
         set forth on Schedule 3(b) to the  Subscription  Agreement  dated as of
         December  3,  1997  between  the  Company  and the Fund  ("Subscription
         Agreement"),  no  holder  of any of the  Company's  securities  has any
         rights,  "demand,"  "piggy-back" or otherwise,  to have such securities
         registered by reason of the intention to file,  filing or effectiveness
         of the  Registration  Statement  contemplated  by Amendment No. 1 other
         than those rights that have been waived prior to the date hereof;

                  (7)  Based  on  the  Fund's  representations,  warranties  and
         covenants set forth in the Agreement,  the  Additional  Warrants may be
         issued to the Fund  pursuant  to the  Agreement  and the  Shares may be
         issued to the Fund upon  exercise of the  Additional  Warrants  without
         registration under the Securities Act of 1933, as amended ("1933 Act").
         In addition,  for purposes of rendering  the opinions set forth in this
         Paragraph (7), we have assumed that (a) all of the purchasers  from the
         Company of the  Additional  Warrants  are,  and of the Shares  will be,
         "accredited  investors" within the meaning of Rule 501 of Regulation D,
         (b) the  offering  of the  Additional  Warrants  and  Shares  cannot be
         integrated  with any other  offering of securities by the Company,  (c)
         neither the Company nor any person acting on its behalf has offered the
         Additional  Warrants  or the  Shares  by means  of any form of  general
         solicitation or general  advertising,  (d) the limitations on resale of
         the Additional  Warrants and the Shares are  implemented by the Company
         as required by Rule 502(d) of Regulation D, and (e) the Company  timely
         files a Form D and  amendments  thereto  as  required  by  Rule  503 of
         Regulation D;

                  (8) No authorization,  approval or consent of, or filing with,
         any  court,   government  body,   regulatory  agency,   self-regulatory
         organization or stock exchange, market or automated quotation system or
         the  stockholders  of the Company is required to be obtained or made by
         the Company for the  issuance  and sale of the  Additional  Warrants as
         contemplated  by the  Agreement,  or the  issuance  of  the  Shares  on
         exercise of and as contemplated by the Additional Warrants, except such
         as have been  obtained or made and other than (a) as may be required by
         Nasdaq with  respect to the  listing of the Shares,  (b) such as may be
         required   under  the   securities   or  "blue  sky"  laws  of  certain
         jurisdictions (as to which we express no opinion) and (c) the Form D to
         be filed by the Company with the SEC;

                  (9) Except as disclosed in the Company's Annual Report on Form
         10-K for the year ended  December 31, 1997 and the Company's  Quarterly
         Reports on Form 10-Q for the three months ended March 31, 1998 and June

<PAGE>
Advantage Fund II Ltd.
September 22, 1998
Page 5


         30,  1998,  to our  knowledge,  there is no action,  suit,  proceeding,
         inquiry or investigation  before or by any court,  public board or body
         pending or  threatened  against or affecting  the  Company,  wherein an
         unfavorable  decision,  ruling or finding would have a material adverse
         effect on the  properties,  business,  condition  (financial or other),
         results of operations  or prospects of the Company or the  transactions
         contemplated  by the  Agreement  or any of the  documents  contemplated
         thereby or that would adversely  affect the validity or  enforceability
         of,  or  the  authority  or  ability  of the  Company  to  perform  its
         obligations under, the Agreement, or any of such other documents;

                  (10) Except for certain  registration  rights contained in the
         agreements  set forth in Items 1  through  14 of  Schedule  3(b) of the
         Subscription Agreement, the execution,  delivery and performance by the
         Company of the Agreement,  Amendment No. 1 and the Additional Warrants,
         the  offer,  sale  and  issuance  of the  Additional  Warrants  and the
         issuance of the Shares,  and the fulfillment of and the compliance with
         the respective terms thereof by the Company will not result in a breach
         of any of the terms or provisions  of, or  constitute a default  under,
         the  Company's  certificate  of  incorporation  or bylaws,  or any law,
         statute,  rule or  regulation  to which the  Company  is subject or any
         indenture,  mortgage or material  instrument  or agreement to which the
         Company  is a party  or by which it or any of its  property  is  bound,
         other than other than those rights or provisions  that have been waived
         prior to the date hereof; provided, however, that we express no view as
         to whether the Transaction  Agreements,  the securities contemplated by
         the Subscription Agreement or the warrants originally issued to Wharton
         Capital Partners,  Ltd. would cause a change in the terms of conversion
         or exercise of any security of the Company that is convertible  into or
         exercisable for Common Stock; and

                  (11) To our  knowledge  after due  inquiry,  the  Company  has
         timely  filed  with the SEC all  forms,  reports  and  other  documents
         required to be filed with the SEC under the 1934 Act since  October 24,
         1996.

         These opinions are limited to the matters  expressly  stated herein and
are  rendered  solely for your  benefit and may not be quoted or relied upon for
any other  purpose or by an other  person.  Except with our prior  consent,  the
foregoing  opinions  are  not  to be  used,  circulated,  quoted,  published  or
otherwise  referred to or  disseminated  for any other purpose or relied upon by
any person or entity other than the  addressee  as  described  in the  preceding
sentence. Further, the foregoing opinions are given as of the date hereof and we
assume no obligation to update or supplement these opinions to reflect any facts

<PAGE>

Advantage Fund II Ltd.
September 22, 1998
Page 6

or circumstances that may hereafter come to our attention or any changes in laws
that may hereafter occur.

                                                Very truly yours,


                                                Kirkpatrick & Lockhart LLP



<PAGE>

                                                                       Exhibit D
                                                                       ---------

                                V-ONE CORPORATION
                       20250 Century Boulevard, Suite 300
                           Germantown, Maryland 20874

                             ADVANTAGE FUND II LTD.
                                    c/o CITCO
                                Kaya Flamboyan 9
                          Curacao, Netherlands Antilles

                               September 22, 1998


Mr. Herbert J. Lemmer
American Stock Transfer & Trust Company
6201 15th Avenue
Brooklyn, NY  11219

                  Re:  V-ONE Corporation - Series A Convertible Preferred Stock
                       --------------------------------------------------------

Dear Mr. Lemmer:

         This letter ("Letter")  amends the instruction  letter sent to American
Stock Transfer & Trust Company ("AST") on December 8, 1997  ("Original  Letter")
regarding the private placement by V-ONE Corporation ("Company") of 4,000 shares
of Series A Convertible  Preferred Stock ("Series A Stock") to Advantage Fund II
Ltd.  ("Advantage")  and AST's duties as Transfer  Agent and  Registrar  for the
Series A Stock.

         The Company and Advantage have entered into a Waiver Agreement dated as
of September  22, 1998  ("Agreement"),  a copy of which is included  herewith as
Item 1, pursuant to which Advantage has,  subject to the conditions set forth in
the Agreement, agreed for a period beginning on September 22, 1998 and ending on
November 20, 1998:

         1.   not to convert the Series A Stock pursuant to Section 10(a) of the
              Certificate of Designations of the Series A Stock ("Certificate"),

         2.   not to require the  Company to redeem the Series A Stock  pursuant
              to Section 7(a)(2) of the Certificate,

         3.   to allow the Company,  at its option, to redeem the Series A Stock
              for $1,300 per share, and

         4.   to waive its right to an  adjustment  to the  "Ceiling  Price" and
              "Conversion   Percentage"  (as  such  terms  are  defined  in  the
              Certificate).


<PAGE>
Mr. Herbert J. Lemmer
American Stock Transfer & Trust Company
September 22, 1998
Page 2


         In consideration of the foregoing, the Company has issued to Advantage:

         1.   warrants  ("First  Warrants")  to purchase  100,000  shares of the
              Company's  Common  Stock,  par  value  $.001  per  share  ("Common
              Stock"), at an exercise price of $2.125 per share, and

         2.   warrants ("Second  Warrants") to purchase 389,441 shares of Common
              Stock at an exercise  price of $4.77 per share  (collectively  the
              First Warrants and the Second Warrants are referred to as the "New
              Warrants").

         In addition,  the Agreement provides that, if some or all of the Series
A Stock is  converted  into  shares of Common  Stock at any time on or after the
date of the  Agreement,  no warrants  ("Series A  Warrants")  shall be issued to
Advantage or any  subsequent  holders of the Series A Stock  pursuant to Section
10(a) of the  Certificate.  The Series A Stock shall be convertible  solely into
shares of Common Stock under the formula  provided  under  Section  10(a) of the
Certificate ("Conversion Shares") without any adjustment as a result of the fact
that the Series A Warrants will no longer be issued.

         In  connection  with the  execution of the  Agreement,  the Company and
Advantage,  the holder of all of the outstanding  shares of Series A Stock, have
agreed that the Original Letter shall be amended as follows:

         1. The Company hereby instructs AST to issue the Conversion Shares upon
the  conversion  of the  Series A Stock  from  time to time  upon  receipt  of a
Conversion  Notice (as that term is defined in the  Original  Letter) as per the
instructions  in the Original  Letter and according to the formula  described in
Section 10(a) of the Certificate,  but without any adjustment as a result of the
fact that the Series A Warrants  will no longer be issued.  AST shall  disregard
receipt of a Conversion  Notice (as that term is defined in the Original Letter)
that  requests  Series A  Warrants  to be  issued,  shall not issue any Series A
Warrants in  connection  with the  conversion of Series A Stock and shall return
all executed copies of the form of Series A Warrant to the Company.

         You shall  continue  to issue  shares of Common  Stock on  exercise  of
Series A Warrants issued prior to the date of the Agreement.

         2. The Company hereby  instructs AST to issue shares of Common Stock on
exercise of the New Warrants.

         3. The New  Warrants  and the  underlying  Common  Stock  (collectively
"Securities")  are  being  offered  in  reliance  on Rule 506 of  Regulation  D.

<PAGE>
Mr. Herbert J. Lemmer
American Stock Transfer & Trust Company
September 22, 1998
Page 3


Therefore all subsequent offers and sales of the Securities by Advantage must be
made  pursuant to  registration  under the  Securities  Act of 1933,  as amended
("1933 Act"), or an exemption from such registration.

         4.  Pursuant to Amendment  No. 1 dated as of September  22, 1998 to the
Registration  Rights  Agreement  dated as of December 3, 1997 by and between the
Company and Advantage, the Company has agreed to register under the 1933 Act the
shares of Common  Stock  issuable on exercise  of the New  Warrants.  Until such
registration  statement  is  effective,  the  shares of Common  Stock  issued on
exercise of the New Warrants are subject to stop transfer  instructions and must
bear the restrictive  legend included herewith as Item 2. In all other respects,
the issuance and transfer of the shares of Common Stock  issuable  upon exercise
of the New Warrants  shall be treated as Common  Shares (as that term is defined
in the Original Letter) for purposes of the Original Letter.

         5. The Company and  Advantage  have the authority to amend the Original
Letter  pursuant to Section  4(b) of the  Original  Letter.  Except as expressly
amended hereby, the Original Letter shall remain in full force and effect.


<PAGE>
Mr. Herbert J. Lemmer
American Stock Transfer & Trust Company
September 22, 1998
Page 4



                                          Very truly yours,

                                          V-ONE CORPORATION

                                          By:__________________________
                                                Name: Charles B. Griffis
                                                Title: Senior Vice President and
                                                         Chief Financial Officer

                                          ADVANTAGE FUND II LTD.

                                          By:__________________________
                                                Name: W.R. Weber
                                                Title: President

Receipt Acknowledged:
AMERICAN STOCK TRANSFER & TRUST
COMPANY

By:__________________________
      Name:
      Title:

<PAGE>

                                                                         ITEM 1
                                                                         ------


                                WAIVER AGREEMENT

         This  Waiver  Agreement  ("Agreement")  dated  as of  the  22nd  day of
September,  1998,  by and  between  V-ONE  Corporation,  a Delaware  corporation
("Company"),  and Advantage Fund II Ltd., a British  Virgin Islands  corporation
("Fund").


                                   WITNESSETH

         WHEREAS,  pursuant to that certain  Certificate of  Designations  dated
December 8, 1997 ("Certificate"),  the Company authorized 4,000 shares of Series
A Convertible  Preferred Stock, par value $.001 per share  ("Preferred  Stock"),
the  rights,   preferences  and  privileges  of  which  are  set  forth  in  the
Certificate; and

         WHEREAS,  pursuant to that certain  Subscription  Agreement dated as of
December  3,  1997  by and  between  the  Company  and the  Fund  ("Subscription
Agreement"),  the Company  issued and sold to the Fund 4,000 shares of Preferred
Stock ("Advantage Shares"); and

         WHEREAS, the Fund currently holds 2,462 Advantage Shares; and

         WHEREAS, pursuant to the Certificate, the Fund has the right to convert
the Advantage Shares into a certain number of shares of Common Stock,  $.001 par
value per share, of the Company ("Common Stock") or in certain  circumstances to
require the Company to redeem the Advantage Shares; and

         WHEREAS,  the  Company  desires  to  induce  the Fund to  agree  not to
exercise certain of its rights under the Certificate;

         NOW,  THEREFORE,  in  consideration  of the  premises  and  the  mutual
covenants  contained  herein  and other  good and  valuable  consideration,  the
receipt and sufficiency of which are hereby  acknowledged,  the parties agree as
follows:

         1. For the period beginning on the date of this Agreement and ending on
November  20, 1998  ("Term") as long as the  Company is in  compliance  with its
obligations to the Fund under the Certificate,  the Subscription Agreement,  the
Registration  Rights  Agreement  dated as of  December  3,  1997,  as amended by
Amendment No. 1 (as  hereinafter  defined)  between the Company and the Fund (as
amended, the "Registration Rights Agreement"),  and any other agreements between
the Company and the Fund, as the  Certificate and such agreements are amended by
this Agreement:

                   (a) the Fund hereby waives its right to convert the Advantage
         Shares into  shares of Common  Stock and  warrants  to purchase  Common
         Stock pursuant to Section 10(a) of the Certificate; and


<PAGE>

                  (b) the Fund hereby waives its right to require the Company to
         redeem  the  Advantage  Shares  pursuant  to  Section  7(a)(2)  of  the
         Certificate.

         2. The  parties  agree that the  Company  shall have the right,  at its
option,  to redeem  the  Advantage  Shares at a price of $1,300 per share at any
time  during  the  Term  without  regard  to  any  contrary  provisions  in  the
Certificate.  If the Advantage Shares are redeemed, all accrued dividends on the
Advantage Shares shall be waived by the Fund (without any additional  payment by
the Company).

          3. For the period beginning on December 8, 1997 and ending on November
20,  1998,  the Fund hereby  waives its right to an  adjustment  to the "Ceiling
Price"  and the  "Conversion  Percentage"  (as such  terms  are  defined  in the
Certificate)  and waives its right to the "Periodic  Amount" pursuant to Section
2(c) of the Registration Rights Agreement. The term "Periodic Amount" is defined
in such Section 2(c).

          4. The Fund agrees that none of the transactions  contemplated by this
Agreement  shall  give  rise  to  an  "Optional   Redemption  Event"  under  the
Certificate (as such term is defined in the Certificate).

          5. On the date  hereof,  the Fund shall  receive  (a)  warrants  ("New
Warrants") to purchase  100,000  shares of Common Stock at an exercise  price of
$2.125 per share,  the term of which New Warrants  shall expire on September 21,
2003,  and (b) warrants  ("Conversion  Warrants") to purchase  389,441 shares of
Common  Stock  at an  exercise  price  of  $4.77  per  share,  the term of which
Conversion Warrants shall expire on September 21, 2003. The New Warrants and the
Conversion Warrants  (collectively,  "Additional Warrants") shall be in the form
attached hereto as Exhibit A.

          6. The Fund  agrees  not to sell,  transfer  or  otherwise  dispose of
(collectively  "transfer") any of the Advantage Shares unless, prior to any such
proposed transfer,  (i) the Company is furnished with written notice of the name
and address of such transferee,  (ii) at or before the time the Company receives
the written notice  contemplated by clause (i) of this sentence,  the transferee
agrees in  writing  for the  benefit  of the  Company  to be bound by all of the
provisions  contained in this Agreement  (including without limitation Exhibit D
hereto)  following  such  transfer,  (iii) such transfer shall have been made in
accordance with the applicable requirements of the Subscription  Agreement,  the
Certificate, the Securities Act of 1933, as amended ("1933 Act"), and applicable
state  securities  laws,  and (iv) the further  transfer  of such the  Advantage
Shares by the transferee (and any subsequent transferees) is restricted pursuant
to the provisions of this Agreement.

          7. The Fund  agrees  that,  whether  or not the  Advantage  Shares are
redeemed  during the Term or otherwise,  if some or all of the Advantage  Shares
are, on or after the date hereof, converted into shares of Common Stock pursuant
to Section 10 of the  Certificate  or otherwise,  no "Warrants" (as such term is
defined in the Certificate) shall be issued to the Fund or any subsequent holder
of the Advantage Shares upon such conversion.  The Fund and the Company agree to
deliver a letter to the Company's  transfer agent and registrar  (American Stock
Transfer & Trust  Company),  in the form  attached  hereto as Exhibit D, to this


                                       2
<PAGE>

effect and  instructing  such  transfer  agent and  registrar to issue shares of
Common Stock upon exercise of the Additional Warrants.

          8. On the date hereof and as conditions to the  effectiveness  hereof,
the Company and the Fund shall enter into  Amendment  No. 1 in the form attached
hereto as Exhibit B ("Amendment No. 1") to the Registration Rights Agreement and
the Company shall  deliver to the Fund an opinion of  Kirkpatrick & Lockhart LLP
substantially in the form attached hereto as Exhibit C.

          9. The Fund represents and warrants to the Company that:

             (a) The  Advantage  Shares  are owned by the Fund free and clear of
         any and all liens and/or encumbrances;

             (b) Each of this  Agreement  and  Amendment No. 1 has been duly and
         validly  authorized by the Fund, this Agreement has been, and Amendment
         No. 1 will be, duly  executed  and  delivered on behalf of the Fund and
         this  Agreement is, and Amendment No. 1, when executed and delivered by
         the  Fund,  will  be,  valid  and  binding   obligations  of  the  Fund
         enforceable in accordance with their  respective  terms,  subject as to
         enforceability  to  general  principles  of equity  and to  bankruptcy,
         insolvency, moratorium and other similar laws affecting the enforcement
         of creditors' rights generally;

             (c) The Fund is acquiring the Additional Warrants and will purchase
         the shares of Common  Stock  issuable  on  exercise  of the  Additional
         Warrants   (collectively,   the  "Shares")  for  its  own  account  for
         investment only and not with a view to, or for sale in connection with,
         the distribution thereof;

             (d) On the date hereof the Fund is, and on each date the Additional
         Warrants are  exercised the Fund will be, an  "accredited  investor" as
         that term is defined in Rule 501 of the General  Rules and  Regulations
         under the 1933 Act by reason of Rule 501(a)(3);

             (e) All subsequent offers and sales of the Additional  Warrants and
         the Shares by the Fund shall be made pursuant to  registration  of such
         securities  being offered and sold under the 1933 Act or pursuant to an
         exemption from registration;

             (f) The Fund has no present  intention of  distributing  or selling
         the Additional Warrants or the Shares;

             (g) The Fund  understands  that the  Additional  Warrants are being
         offered and sold, and the Shares are being  offered,  to it in reliance
         on specific  exemptions  from the  registration  requirements of United
         States  federal  and  state  securities  laws and that the  Company  is
         relying upon the truth and accuracy of, and the Fund's compliance with,
         the  representations,   warranties,  agreements,   acknowledgments  and
         understandings  of the Fund set forth herein in order to determine  the


                                       3
<PAGE>

         availability  of such  exemptions  and the  eligibility  of the Fund to
         acquire the Additional Warrants and to receive an offer of the Shares;

             (h) The Fund and its advisors, if any, have been furnished with all
         materials  relating to the  business,  finances and  operations  of the
         Company and materials  relating to the offer and sale of the Additional
         Warrants  and the offer of the Shares that have been  requested  by the
         Fund;  the  Fund and its  advisors,  if any,  have  been  afforded  the
         opportunity to ask questions of the Company and have received  complete
         and  satisfactory  answers to any such inquiries;  without limiting the
         generality of the foregoing, the Fund has had the opportunity to obtain
         and to review  the  Company's  (1)  Annual  Report on Form 10-K for the
         fiscal year ended December 31, 1997, (2) Quarterly Reports on Form 10-Q
         for the  quarters  ended March 31, 1998 and June 30, 1998 and (3) proxy
         statement  for  the  Company's  1998  Annual  Meeting  of  Stockholders
         (collectively,   "SEC  Reports"),  in  each  case  as  filed  with  the
         Securities and Exchange  Commission  ("SEC");  and the Fund understands
         that its investment in the Shares involves a high degree of risk;

             (i) The Fund has such  knowledge  and  experience  in financial and
         business  matters that it is capable of evaluating the merits and risks
         of an investment in the Additional Warrants and the Shares, and is able
         to bear the economic risk of this  investment for an indefinite  period
         of time; and

             (j) The Fund  understands  that no United  States  federal or state
         agency or any other government or governmental  agency has passed on or
         made any recommendation or endorsement of the Shares.

         10. The Company represents and warrants to the Fund that:

             (a) This  Agreement,  Amendment No. 1 and the  Additional  Warrants
         have been duly and validly  authorized by the Company,  this  Agreement
         has been, and Amendment No. 1 and the Additional Warrants will be, duly
         executed and delivered on behalf of the Company and this  Agreement is,
         and  Amendment  No. 1 and the  Additional  Warrants,  when executed and
         delivered by the Company, will be, valid and binding obligations of the
         Company enforceable in accordance with their respective terms,  subject
         as to enforceability to general principles of equity and to bankruptcy,
         insolvency, moratorium and other similar laws affecting the enforcement
         of creditors' rights generally;

             (b) The shares of Common  Stock,  when  issued on  exercise  of the
         Additional  Warrants,  will be duly and validly issued,  fully paid and
         nonassessable;

             (c) The execution and delivery of this Agreement by the Company and
         the  consummation  by the  Company of the  issuance  of the  Additional
         Warrants as contemplated  by this Agreement and the other  transactions
         contemplated  by this Agreement and Amendment No. 1 do not and will not
         conflict  with or result in a breach by the Company of any of the terms

                                       4
<PAGE>

         or provisions  of, or constitute a default  under,  the  certificate of
         incorporation  or  the  by-laws  of  the  Company,  or  any  indenture,
         mortgage,  deed of trust or other  material  agreement or instrument to
         which the Company is a party or by which it or any of its properties or
         assets  are bound that  would  have a  material  adverse  effect on the
         Company or any  applicable  law, rule or  regulation or any  applicable
         decree,  judgment or order of any court, United States federal or state
         regulatory  body,  administrative  agency  or other  governmental  body
         having jurisdiction over the Company or any of its properties or assets
         which would have a material adverse effect on the Company;

             (d)  No   authorization,   approval   or   consent  of  any  court,
         governmental body, regulatory agency,  self-regulatory organization, or
         stock exchange or market or the stockholders of the Company is required
         to be  obtained  by the Company  for (1) the  execution,  delivery  and
         performance  by the  Company  of this  Agreement  and  Amendment  No. 1
         (except such  authorization  of the SEC as is required  with respect to
         accelerating  the  effectiveness  of any  registration  statement filed
         pursuant  thereto),  (2) the  issuance  of the  Additional  Warrants as
         contemplated by this Agreement,  (3) the issuance of the Shares and (4)
         the  filing of an  additional  listing  application  with  Nasdaq  with
         respect to the Shares;

             (e) The SEC  Reports  do not  contain  any  untrue  statement  of a
         material fact or omit to state any material fact  necessary in order to
         make the statements  therein,  in the light of the circumstances  under
         which they were made,  not  misleading  other than (i) the existence of
         this Agreement and the transactions contemplated thereby, (ii) the fact
         that an  Inconvertibility  Notice was  required  to be sent to the Fund
         pursuant to Section 7(a)(2) of the Certificate (and the consequences of
         such  requirement),  and (iii) the  Company's  financial  condition and
         results of operations  subsequent to June 30, 1998. The Company has not
         filed any reports  with the SEC under the  Securities  Exchange  Act of
         1934, as amended (the "1934 Act"), since August 6, 1998;

             (f) Since  December  31, 1997,  there has been no material  adverse
         change and no material adverse development in the business, properties,
         operations,  condition  (financial or other),  results of operations or
         prospects of the Company, except as disclosed in the SEC Reports; and

             (g) The Company has timely  filed all required  forms,  reports and
         other  documents  with the SEC.  All of such  forms,  reports and other
         documents  complied,  when filed,  in all material  respects,  with all
         applicable requirements of the 1933 Act and the Securities Exchange Act
         of 1934, as amended.

          11. The Company agrees to file an additional listing  application with
respect to the Shares with the Nasdaq  National Market within 7 days of the date
of this Agreement.

          12. The Fund acknowledges that (a) the Additional Warrants and, except
as  provided  in  Amendment  No. 1, the  Shares  have not been and are not being
registered  under  the  provisions  of the 1933  Act and may not be  transferred
unless  (i)  subsequently  registered  thereunder  or (ii) the Fund  shall  have
delivered to the Company an opinion of counsel, reasonably satisfactory in form,


                                       5
<PAGE>

scope and substance to the Company,  to the effect that the Additional  Warrants
or the Shares to be sold or transferred  may be sold or transferred  pursuant to
an exemption from such registration;  (b) any resale of the Additional  Warrants
or the Shares made in reliance on Rule 144 promulgated under the 1933 Act may be
made only in accordance with the terms of said Rule and further, if said Rule is
not applicable,  any such resale of the Additional  Warrants or the Shares under
circumstances  in which the  seller,  or the person  through  whom the resale is
made, may be deemed to be an underwriter,  as that term is used in the 1933 Act,
may require compliance with some other exemption under the 1933 Act or the rules
and regulations of the SEC thereunder; and (c) neither the Company nor any other
person is under any  obligation  to register the Shares  (other than pursuant to
Amendment No. 1) or the Additional Warrants under the 1933 Act or to comply with
the terms and  conditions  of any exemption  thereunder  (other than pursuant to
Amendment No. 1).

          13. The Fund  acknowledges  and agrees  that the  Additional  Warrants
shall  bear  restrictive  legends in  substantially  the  following  form (and a
stop-transfer order may be placed against transfer of the Additional Warrants):

             These  securities have not been registered under the
             Securities  Act of 1933, as amended (the "Act"),  or
             any state securities laws. The sale to the holder of
             these  securities  and of the shares of common stock
             issuable upon exercise of these  securities  are not
             covered by a registration statement under the Act or
             registration  under  state  securities  laws.  These
             securities  have been  acquired,  and such shares of
             common stock must be acquired,  for investment  only
             and may not be sold,  transferred or assigned in the
             absence of  registration of the resale thereof or an
             opinion  of  counsel  reasonably  acceptable  to the
             Company that such registration is not required.

          14.  The Fund  acknowledges  and agrees  that,  until such time as the
Shares have been  registered  for resale under the 1933 Act as  contemplated  by
Amendment  No. 1, the  certificates  for the Shares  issued on  exercise  of the
Additional   Warrants  shall  bear  restrictive  legends  in  substantially  the
following form (and a stop-transfer  order may be placed against transfer of the
Shares):

             The securities  represented by this certificate have
             not been  registered  under  the  Securities  Act of
             1933,   as  amended  (the   "Act"),   or  any  state
             securities  laws.  The sale to the  holder  of these
             securities   is  not   covered  by  a   registration
             statement under the Act or registration  under state
             securities laws. These securities have been acquired
             for investment only and may not be sold, transferred
             or assigned in the  absence of  registration  of the
             resale  thereof or an opinion of counsel  reasonably
             acceptable to the Company that such  registration is
             not required.

                                       6
<PAGE>

          15. On the date  hereof,  the Company  shall pay the Fund $10,000 with
respect  to the  Fund's  costs  and  expenses  (including  attorneys'  fees  and
expenses)  incurred  and to be  incurred  by the Fund in  connection  with  this
Agreement, Amendment No. 1 and the transactions contemplated hereby and thereby.

          16. This  Agreement  shall be governed by and  construed in accordance
with the laws of the State of New York  applicable  to contracts  made and to be
performed  in the State of New York.  The  parties  irrevocably  consent  to the
jurisdiction of the United States federal courts and the state courts located in
the State of Maryland in any suit or  proceeding  based on or arising under this
Agreement or relating to the Additional  Warrants or the Shares, and irrevocably
agree that all claims in respect of such suit or proceeding may be determined in
such courts. The parties  irrevocably waive the defense of an inconvenient forum
to the  maintenance of such suit or proceeding.  The parties  further agree that
service of process  upon either  party,  mailed by first  class  mail,  shall be
deemed in every respect  effective  service of process on such party in any such
suit or  proceeding.  Nothing  herein shall affect either party's right to serve
process in any other manner  permitted  by law.  The parties  agree that a final
non-appealable  judgment in any such suit or proceeding  shall be conclusive and
may be enforced in other  jurisdictions by suit on such judgment or in any other
lawful manner.

          17.  Failure by any party to exercise  any right or remedy  under this
Agreement or otherwise,  or delay by a party in exercising such right or remedy,
shall not operate as a waiver thereof.

          18.  Except  as  expressly  provided  herein,  all  of the  terms  and
provisions  of the  Certificate  shall  continue  in full  force and  effect and
nothing  contained  herein shall be deemed to constitute a waiver by the Fund of
any of its  rights  under  the  Certificate,  the  Subscription  Agreement,  the
Registration  Rights  Agreement or any other agreement among the Company and the
Fund.

          19. This Agreement may be executed in two or more  counterparts,  each
of which shall be deemed an original but all of which shall  constitute  one and
the same agreement.  This Agreement,  once executed by a party, may be delivered
to the other party hereto by facsimile  transmission of a copy of this Agreement
bearing the signature of the party so delivering this Agreement.


                                7
<PAGE>


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


                                  V-ONE CORPORATION


                                  By:  _________________________________
                                       Charles B. Griffis, Senior Vice President
                                          and Chief Financial Officer


                                  ADVANTAGE FUND II LTD.


                                  By: _________________________________
                                           W. R. Weber, President




                                       8
<PAGE>



Item 2
- ------

The securities  represented by this  certificate  have not been registered under
the  Securities  Act of 1933,  as amended (the "Act"),  or any state  securities
laws.  The  sale  to  the  holder  of  these  securities  is  not  covered  by a
registration  statement  under the Act or  registration  under state  securities
laws.  These  securities  have been acquired for investment  only and may not be
sold,  transferred  or  assigned in the  absence of  registration  of the resale
thereof or an opinion of counsel reasonably  acceptable to the Company that such
registration is not required.






                AMENDMENT NO. 1 TO REGISTRATION RIGHTS AGREEMENT

          THIS   AMENDMENT   NO.  1,  dated  as  of  September  22,  1998  (this
"Amendment"),  to the  Registration  Rights  Agreement,  dated as of December 3,
1997, by and between V-ONE CORPORATION,  a Delaware corporation (the "Company"),
and ADVANTAGE FUND II LTD., a British Virgin Islands  corporation  (the "Initial
Investor").

                              W I T N E S S E T H:
                              - - - - - - - - - -

          WHEREAS,  the  Company  and the  Initial  Investor  are  parties  to a
Registration  Rights Agreement,  dated as of December 3, 1997 (the "Registration
Rights  Agreement"),  pursuant  to which the Company  agreed to provide  certain
registration  rights under the  Securities  Act with respect to shares of Common
Stock  issuable  upon  conversion  of the  Preferred  Shares and the exercise of
common stock  purchase  warrants  issuable  upon  conversion  of such  Preferred
Shares;

          WHEREAS,  the Company and the Initial Investor are parties to a Waiver
Agreement, dated the date hereof (the "Waiver Agreement"), pursuant to which the
Company is issuing to the Initial  Investor common stock purchase  warrants (the
"Additional   Warrants")  to  purchase  an  aggregate  of  489,441  shares  (the
"Additional Warrant Shares") of Common Stock; and

          WHEREAS,  the  Company  and the  Initial  Investor  wish to amend  the
Registration  Rights Agreement to cover the shares of Common Stock issuable upon
exercise of the Additional Warrants;

          NOW  THEREFORE,  in  consideration  of the  premises  and  the  mutual
covenants  contained  herein  and other  good and  valuable  consideration,  the
receipt and  sufficiency  of which are hereby  acknowledged,  the parties hereto
agree as follows:

          1. AMENDMENT OF REGISTRATION RIGHTS AGREEMENT. The Registration Rights
Agreement is hereby amended as follows:

          (a) The definition of "Registrable Securities" in Section 1 is amended
to read in its entirety as follows:

          "Registrable  Securities"  means the  Conversion  Shares,  the Warrant
     Shares, any shares of Common Stock issued by the Company to any Investor as
     a dividend on the Preferred Shares, and the Additional Warrant Shares.

          (b) The definition of "Registration Period" in Section 1 is amended to
read in its entirety as follows:


<PAGE>

          "Registration Period" means (i) with respect to Registrable Securities
     other than the Additional  Warrant Shares, the period from the Closing Date
     to the earlier of (A) the date which is three years after the Closing  Date
     and (B) the date on which  Investors  no longer  beneficially  own any such
     Registrable  Securities  and (ii) with  respect to the  Additional  Warrant
     Shares,  the  period  from the  date the  Additional  Warrants  are  issued
     pursuant  to the Waiver  Agreement  to the earlier of (A) the date which is
     three years after such issuance date and (B) the date on which Investors no
     longer beneficially own any such Registrable Securities.

          (c) Section 2(a) is amended by deleting the second and third sentences
of Section 2(a) and adding the following in lieu thereof:

     With respect to the Additional  Warrant Shares,  the Company shall prepare,
     and on or prior to the date which is 45 days after the date the  Additional
     Warrants  are  first  issued,  file  with the SEC a  separate  Registration
     Statement  on Form S-3 which  covers the resale by the Initial  Investor of
     the  number of  shares  of  Common  Stock  issuable  upon  exercise  of the
     Additional  Warrants.  If at any time the number of shares of Common  Stock
     included in (i) the Registration Statement required to be filed as provided
     in the first sentence of this Section 2(a) shall be  insufficient  to cover
     the number of shares of Common Stock  issuable on conversion in full of the
     unconverted Preferred Shares and exercise in full of the Warrants that have
     been issued prior to the date of Amendment No. 1 to this  Agreement or (ii)
     the Registration  Statement  required to be filed as provided in the second
     sentence of this Section 2(a) shall be  insufficient to cover the number of
     shares of Common  Stock  issuable  on  exercise  in full of the  Additional
     Warrants,  then  promptly,  but in no event  later  than 20 days after such
     insufficiency  shall  occur,  the  Company  shall  file  with  the  SEC  an
     additional Registration Statement on Form S-3 (which shall not constitute a
     post-effective  amendment to the  Registration  Statement filed pursuant to
     the first or second sentence, as applicable, of this Section 2(a)) covering
     such number of shares of Common Stock as shall be sufficient to permit such
     conversion or exercise.  For all purposes of this Agreement such additional
     Registration  Statements shall be deemed to be the Registration  Statements
     required  to be filed  by the  Company  pursuant  to  Section  2(a) of this
     Agreement, and the Company and the Investors shall have the same rights and
     obligations with respect to such additional Registration Statements as they
     shall have with respect to the initial Registration  Statements required to
     be filed by the Company  pursuant to this Section  2(a).  The  Registration
     Statement  required to be filed as provided in the second  sentence of this
     Section  2(a) may also cover the  resale of shares of Common  Stock held by
     such other securityholders as the Company may reasonably desire upon notice
     thereof to the Initial Investor.

          (d) Section 2(c) is amended to add the following  paragraph at the end
thereof:

          The  foregoing  provisions  of  Section  2(c)  shall  not apply to the
     Additional  Warrants or the Additional Warrant Shares.  With respect to the
     Additional   Warrants  and  the  Additional  Warrant  Shares,  if  (1)  the
     Registration  Statement  covering the  Additional  Warrant  Shares which is


                                      -2-
<PAGE>

     required  to be filed by the  Company  pursuant  to the second  sentence of
     Section  2(a)  hereof is not ordered  effective  by the SEC within 100 days
     after the date the Additional  Warrants are issued or (2) such Registration
     Statement  shall cease to be available  for use by any holder of Additional
     Warrants  which is named  therein as a selling  stockholder  for any reason
     (including,  without limitation, by reason of an SEC stop order, a material
     misstatement or omission in such Registration  Statement or the information
     contained in such Registration Statement having become outdated), then upon
     such occurrence and on each monthly  anniversary thereof for so long as any
     such occurrence or circumstances  continue,  the Company shall promptly pay
     to the Initial  Investor  $10,000  (prorated for any partial month in which
     such amount is due); provided,  however;  that the maximum aggregate amount
     paid pursuant to this paragraph shall not exceed $50,000.

          (e)  Section  3(a)  is  deemed  amended  such  that  the  filing  of a
Registration Statement with the SEC with respect to Registrable Securities which
are Additional  Warrants  Shares shall be required to be made by the Company not
later than 45 days after the date the Additional Warrants are first issued.

          2.  EFFECTIVENESS  OF THIS  AMENDMENT.  This  Amendment  shall  become
effective  on the date and time when the  Additional  Warrants  are  issued  and
delivered to the Initial Investor in accordance with the Waiver Agreement.

          3. CONFIRMATION OF REGISTRATION RIGHTS AGREEMENT.  Except as expressly
amended by this Amendment,  all of the terms and provisions of the  Registration
Rights  Agreement  shall remain in full force and effect in accordance  with its
terms.

          4.  MISCELLANEOUS.  (a)  Capitalized  terms used in this Amendment and
defined herein shall have the respective  meanings provided herein.  Capitalized
terms used in this Amendment and not otherwise  defined in this Amendment  shall
have the respective meanings provided in the Registration Rights Agreement.

          (b) This Amendment may be executed in any number of  counterparts  and
by different parties hereto on separate counterparts, each of which counterparts
when so executed  and  delivered,  shall be deemed to be an original  and all of
which  counterparts,  taken  together,  shall  constitute  but one and the  same
instrument.  This  Amendment  may be  executed  and  delivered  by a party  by a
telephone  line  facsimile  transmission  bearing a signature  on behalf of such
party transmitted by such party to the other party.


                                      -3-
<PAGE>


          IN WITNESS WHEREOF,  the parties have caused this Amendment to be duly
executed by their  respective  officers  thereunto duly authorized as of day and
year first above written.

                                          V-ONE CORPORATION



                                          By: /s/ Charles B. Griffis
                                              --------------------------------
                                              Charles B. Griffis
                                              Senior Vice President
                                              and Chief Financial Officer



                                          ADVANTAGE FUND II LTD.



                                          By: /s/ Kieran Conroy
                                              ---------------------------------
                                              Inter Carribbean Services Ltd.
                                              Secretary






THESE  SECURITIES HAVE NOT BEEN REGISTERED  UNDER THE SECURITIES ACT OF 1933, AS
AMENDED (THE "ACT"),  OR ANY STATE  SECURITIES  LAWS.  THE SALE TO THE HOLDER OF
THESE  SECURITIES  AND OF THE SHARES OF COMMON STOCK  ISSUABLE  UPON EXERCISE OF
THESE  SECURITIES ARE NOT COVERED BY A REGISTRATION  STATEMENT  UNDER THE ACT OR
REGISTRATION  UNDER STATE  SECURITIES LAWS. THESE SECURITIES HAVE BEEN ACQUIRED,
AND SUCH SHARES OF COMMON STOCK MUST BE ACQUIRED,  FOR  INVESTMENT  ONLY AND MAY
NOT BE SOLD,  TRANSFERRED  OR  ASSIGNED IN THE  ABSENCE OF  REGISTRATION  OF THE
RESALE  THEREOF OR AN OPINION OF COUNSEL  REASONABLY  ACCEPTABLE  TO THE COMPANY
THAT SUCH REGISTRATION IS NOT REQUIRED.

                                   Right to  Purchase  100,000  Shares of Common
                                   Stock of V-ONE Corporation


                                V-ONE CORPORATION

                          Common Stock Purchase Warrant


         V-ONE  CORPORATION,  a Delaware  corporation  (the  "Company"),  hereby
certifies  that,  for value  received,  ADVANTAGE FUND II LTD., a British Virgin
Islands corporation,  or registered assigns (the "Holder"), is entitled, subject
to the terms set forth below,  to purchase  from the Company at any time or from
time to time after the date hereof, and before 5:00 p.m., New York City time, on
the Expiration Date (as defined  herein),  100,000 fully paid and  nonassessable
shares of Common Stock,  $.001 par value, of the Company at a purchase price per
share equal to the Purchase Price (as hereinafter  defined).  The number of such
shares of Common  Stock and the  Purchase  Price are  subject to  adjustment  as
provided in this Warrant.

         As used  herein  the  following  terms,  unless the  context  otherwise
requires, have the following respective meanings:

         (a) The term  "Business  Day" as used herein  shall mean a day on which
     the New York Stock Exchange is open for business.

         (b) The term "Common Stock" includes the Company's Common Stock,  $.001
     par  value per  share,  as  authorized  on the date  hereof,  and any other
     securities  into which or for which the Common  Stock may be  converted  or
     exchanged pursuant to a plan of recapitalization,  reorganization,  merger,
     sale of assets or otherwise.

         (c)  The  term  "Company"  shall  include  V-ONE  Corporation  and  any
     corporation  that  shall  succeed  to or  assume  the  obligation  of V-ONE
     Corporation hereunder.


<PAGE>

         (d) The term "Expiration Date" refers to September 21, 2003.

         (e) The term "Other  Securities" refers to any stock (other than Common
     Stock) and other  securities of the Company or any other person  (corporate
     or otherwise) that the Holder of this Warrant at any time shall be entitled
     to receive,  or shall have  received,  on the exercise of this Warrant,  in
     lieu of or in  addition  to  Common  Stock,  or which at any time  shall be
     issuable  or shall have been issued in exchange  for or in  replacement  of
     Common Stock or Other Securities pursuant to Section 4.

         (f) The term "Purchase Price" shall mean $2.125,  subject to adjustment
     as provided in this Warrant.

         1. EXERCISE OF WARRANT.

         1.1 EXERCISE AT OPTION OF HOLDER.  (a) This Warrant may be exercised by
the Holder hereof in full or in part at any time or from time to time during the
exercise  period  specified in the first  paragraph  hereof until the Expiration
Date by surrender of this Warrant and the subscription form annexed hereto (duly
executed) by such Holder, to the Company at its principal office, accompanied by
payment,  in cash or by certified or official bank check payable to the order of
the Company in the amount  obtained by  multiplying  (a) the number of shares of
Common  Stock  designated  by the  Holder  in the  subscription  form by (b) the
Purchase  Price  then in effect.  On any  partial  exercise,  the  Company  will
forthwith  issue and  deliver  to or upon the order of the  Holder  hereof a new
Warrant or Warrants of like tenor,  in the name of the Holder  hereof or as such
Holder  (upon  payment  by such  Holder of any  applicable  transfer  taxes) may
request,  providing  in the  aggregate  on the  face or  faces  thereof  for the
purchase  of the  number of shares of Common  Stock for which  such  Warrant  or
Warrants may still be exercised.

         (b)  Notwithstanding  any other provision of this Warrant,  in no event
shall the holder of this Warrant be entitled at any time to purchase a number of
shares of Common  Stock on exercise of this  Warrant in excess of that number of
shares  upon  purchase  of which  the sum of (1) the  number of shares of Common
Stock  beneficially  owned  by such  holder  and  any  person  whose  beneficial
ownership  of shares of Common  Stock  would be  aggregated  with such  holder's
beneficial  ownership of shares of Common Stock for purposes of Section 13(d) of
the  Securities  Exchange Act of 1934,  as amended  (the  "Exchange  Act"),  and
Regulation 13D-G thereunder (each an "Aggregated  Person" and collectively,  the
"Aggregated  Persons")  (other than shares of Common Stock  deemed  beneficially
owned through the  ownership of the  unexercised  portion of this  Warrant,  any
warrant  containing a restriction  similar to this Section  1.1(b) and shares of
Series A  Convertible  Preferred  Stock,  $.001 par value,  of the Company  (the
"Series A Convertible  Preferred Stock"), if any, beneficially owned by all such
Aggregated  Persons) and (2) the number of shares of Common Stock  issuable upon
exercise of the portion of this Warrant with respect to which the  determination
in this  sentence is being made,  would  result in  beneficial  ownership by any
Aggregated  Person of more than 4.9% of the outstanding  shares of Common Stock.
For purposes of the immediately  preceding sentence,  beneficial ownership shall
be  determined  in  accordance  with  Section  13(d)  of the  Exchange  Act  and

                                      -2-
<PAGE>

Regulation 13D-G thereunder,  except as otherwise  provided in clause (1) of the
immediately preceding sentence.

         1.2 NET ISSUANCE. Notwithstanding anything to the contrary contained in
Section 1.1,  the Holder may elect to exercise  this Warrant in whole or in part
by  receiving  shares  of  Common  Stock  equal to the net  issuance  value  (as
determined  below) of this Warrant,  or any part hereof,  upon surrender of this
Warrant at the  principal  office of the  Company  together  with notice of such
election,  in which  event the  Company  shall  issue to the  Holder a number of
shares of Common Stock computed using the following formula:

                  X = Y (A-B)
                      -------
                         A

        Where: X =  the number of shares of Common Stock to be issued to the
                    Holder

                    Y =  the number of shares of Common Stock as to which this
                         Warrant is to be exercised

                    A =  the  current  fair market value of one share  of Common
                         Stock calculated as of the last trading day immediately
                         preceding the exercise of this Warrant

                    B =  the Purchase Price

         As used  herein,  current  fair  market  value of Common  Stock as of a
specified date shall mean with respect to each share of Common Stock the average
of the closing bid prices of the Common Stock on the principal securities market
on which  the  Common  Stock  may at the time be  traded  over a period  of five
Business Days consisting of the day as of which the current fair market value of
a share of Common  Stock is being  determined  (or if such day is not a Business
Day, the Business Day next preceding such day) and the four consecutive Business
Days prior to such day. If on the date for which current fair market value is to
be  determined  the Common Stock is not  eligible for trading on any  securities
market, the current fair market value of Common Stock shall be the highest price
per share  which the  Company  could  then  obtain  from a willing  buyer (not a
current  employee or  director)  for shares of Common Stock sold by the Company,
from authorized but unissued shares, as determined in good faith by the Board of
Directors  of the  Company,  unless  prior to such date the  Company  has become
subject to a merger,  acquisition or other  consolidation  pursuant to which the
Company is not the surviving  party, in which case the current fair market value
of the Common  Stock shall be deemed to be the value  received by the holders of
the  Company's  Common Stock for each share  thereof  pursuant to the  Company's
acquisition.

         2.  DELIVERY  OF STOCK  CERTIFICATES,  ETC.,  ON  EXERCISE.  As soon as
practicable  after the exercise of this  Warrant,  and in any event within three
days thereafter,  the Company at its expense (including the payment by it of any
applicable  issue or stamp  taxes)  will  cause to be  issued in the name of and

                                      -3-
<PAGE>

delivered to the Holder  hereof,  or as such Holder (upon payment by such Holder
of any applicable  transfer taxes) may direct, a certificate or certificates for
the  number of fully  paid and  nonassessable  shares of Common  Stock (or Other
Securities)  to which such Holder  shall be entitled on such  exercise,  in such
denominations  as  may be  requested  by  such  Holder,  plus,  in  lieu  of any
fractional share to which such Holder would otherwise be entitled, cash equal to
such fraction multiplied by the then current fair market value (as determined in
accordance with subsection 1.2) of one full share, together with any other stock
or other securities any property  (including  cash,  where  applicable) to which
such Holder is entitled upon such  exercise  pursuant to Section 1 or otherwise.
Upon exercise of this Warrant as provided  herein,  the Company's  obligation to
issue and  deliver the  certificates  for Common  Stock  shall be  absolute  and
unconditional,  irrespective  of any action or inaction by the Holder to enforce
the same,  any waiver or consent  with  respect to any  provision  thereof,  the
recovery of any  judgment  against any person or any action to enforce the same,
any failure or delay in the  enforcement of any other  obligation of the Company
to  the  Holder,  or  any  setoff,  counterclaim,   recoupment,   limitation  or
termination,  or any breach or alleged  breach by the Holder or any other person
of any obligation to the Company or any violation or alleged violation of law by
the Holder or any other person,  and irrespective of any other circumstance that
might otherwise limit such obligation of the Company to the Holder in connection
with such exercise.  If the Company fails to issue and deliver the  certificates
for the  Common  Stock to the  Holder  pursuant  to the first  sentence  of this
paragraph  as and when  required to do so, in addition to any other  liabilities
the Company may have hereunder and under  applicable  law, the Company shall pay
or  reimburse  the Holder on demand for all  out-of-pocket  expenses  including,
without limitation, fees and expenses of legal counsel incurred by the Holder as
a result of such failure.

         3.   ADJUSTMENT   FOR  DIVIDENDS  IN  OTHER  STOCK,   PROPERTY,   ETC.;
RECLASSIFICATION, ETC. In case at any time or from time to time, all the holders
of Common Stock (or Other Securities)  shall have received,  or (on or after the
record date fixed for the  determination  of  stockholders  eligible to receive)
shall have become entitled to receive, without payment therefor,

         (a) other or additional  stock or other  securities or property  (other
     than cash) by way of dividend, or

         (b) any cash (excluding  cash dividends  payable solely out of earnings
     or earned surplus of the Company), or

         (c)  other  or  additional   stock  or  other  securities  or  property
     (including   cash)  by  way  of   spin-off,   split-up,   reclassification,
     recapitalization, combination of shares or similar corporate rearrangement,

other than additional shares of Common Stock (or Other  Securities)  issued as a
stock dividend or in a stock-split (adjustments in respect of which are provided
for in Section 5), then and in each such case the Holder of this Warrant, on the
exercise  hereof as  provided  in Section 1, shall be  entitled  to receive  the
amount of stock and other  securities and property  (including cash in the cases
referred  to in  subdivisions  (b) and (c) of this  Section 3) that such  Holder

                                      -4-
<PAGE>

would  hold on the date of such  exercise  if on the date  hereof the Holder had
been the holder of record of the number of shares of Common  Stock called for on
the face of this  Warrant  and had  thereafter,  during the period from the date
hereof to and including the date of such exercise,  retained such shares and all
such other or additional stock and other securities and property (including cash
in the  case  referred  to in  subdivisions  (b)  and  (c) of  this  Section  3)
receivable by the Holder as aforesaid  during such period,  giving effect to all
adjustments called for during such period by Section 4.

         4. EXERCISE UPON REORGANIZATION, CONSOLIDATION, MERGER, ETC. In case at
any time or from time to time,  the Company  shall (a) effect a  reorganization,
(b) consolidate  with or merge into any other person,  (c) effect an exchange of
outstanding  shares of the Company  for  securities  of any other  person or (d)
transfer  all or  substantially  all of its  properties  or  assets to any other
person  under  any plan or  arrangement  contemplating  the  dissolution  of the
Company,  then,  in each  such  case,  as a  condition  of such  reorganization,
consolidation,  merger,  share exchange,  sale or conveyance,  the Company shall
cause  effective  provisions  to be made so that the Holder shall have the right
thereafter, by exercising this Warrant (in lieu of the shares of Common Stock of
the Company  purchasable and receivable upon exercise of the rights  represented
hereby immediately prior to such transaction) to purchase the kind and amount of
shares of stock and other  securities and property  (including  cash) receivable
upon  such  reorganization,  consolidation,  merger,  share  exchange,  sale  or
conveyance  by a holder of the number of shares of Common  Stock that might have
been  received  upon  exercise  of  this  Warrant   immediately  prior  to  such
reorganization,  consolidation,  merger,  share  exchange,  sale or  conveyance;
provided,  however, that in the event (a) the value of the stock,  securities or
other assets or property  (determined in good faith by the Board of Directors of
the  Company)  issuable or payable  with respect to one share of Common Stock of
the  Company  purchasable  and  receivable  upon  the  exercise  of  the  rights
represented  hereby  immediately  prior to such  transaction is in excess of the
Purchase   Price   hereof  in  effect  at  the  time  of  such   reorganization,
consolidation,  merger, share exchange,  sale or conveyance (after giving effect
to any  adjustment in such Purchase Price required to be made under the terms of
this  Warrant),  and  (b)  the  securities,  if  any,  to be  received  in  such
reorganization,  consolidation,  merger, share exchange,  sale or conveyance are
publicly traded,  then if the Company gives the Holder at least 20 Business Days
(or such lesser  period as the Company gives notice of such  transaction  to the
holders  of the  outstanding  shares  of  Common  Stock)  prior  notice  of such
reorganization,  merger,  share exchange,  sale or conveyance this Warrant shall
expire unless  exercised prior to such  reorganization,  consolidation,  merger,
share exchange, sale or conveyance.  Any such provision shall include provisions
for  adjustments  in respect of such  shares of stock and other  securities  and
property  that  shall  be as  nearly  equivalent  as may be  practicable  to the
adjustments  provided for in this Warrant.  The provisions of this Section shall
apply to successive reorganizations,  consolidations,  mergers, share exchanges,
sales and conveyances.

         5. ADJUSTMENT FOR  EXTRAORDINARY  EVENTS. In the event that the Company
shall (i) issue  additional  shares of the Common  Stock as a dividend  or other
distribution  on  outstanding  Common Stock,  (ii)  subdivide or reclassify  its
outstanding  shares of Common Stock, or (iii) combine its outstanding  shares of
Common Stock into a smaller number of shares of Common Stock, then, in each such
event,  the Purchase  Price  shall,  simultaneously  with the  happening of such
event,  be adjusted by multiplying  the then Purchase  Price by a fraction,  the

                                      -5-
<PAGE>

numerator  of which  shall be the number of shares of Common  Stock  outstanding
immediately prior to such event and the denominator of which shall be the number
of shares of Common  Stock  outstanding  immediately  after such event,  and the
product so obtained shall  thereafter be the Purchase Price then in effect.  The
Purchase Price, as so adjusted,  shall be readjusted in the same manner upon the
happening of any successive  event or events described herein in this Section 5.
The Holder of this Warrant shall thereafter,  on the exercise hereof as provided
in  Section 1, be  entitled  to receive  that  number of shares of Common  Stock
determined  by  multiplying  the number of shares of Common  Stock that would be
issuable on such exercise as of immediately prior to such issuance by a fraction
of which (i) the numerator is the Purchase Price in effect  immediately prior to
such issuance and (ii) the  denominator  is the Purchase  Price in effect on the
date of such exercise.

         6.  FURTHER  ASSURANCES.  The Company  will take all action that may be
necessary or appropriate in order that the Company may validly and legally issue
fully paid and  nonassessable  shares of stock,  free from all taxes,  liens and
charges with respect to the issue thereof, on the exercise of all or any portion
of this Warrant from time to time outstanding.

         7. NOTICES OF RECORD DATE, ETC. In the event of

         (a) any taking by the  Company of a record of the  holders of any class
     of securities  for the purpose of determining  the holders  thereof who are
     entitled  to  receive  any  dividend  on,  or any right to  subscribe  for,
     purchase or otherwise acquire any shares of stock of any class or any other
     securities or property, or to receive any other right, or

         (b) any capital  reorganization of the Company, any reclassification or
     recapitalization of the capital stock of the Company or any transfer of all
     or  substantially  all of the assets of the Company to or  consolidation or
     merger of the Company with or into any other person, or

         (c) any voluntary or involuntary dissolution, liquidation or winding-up
     of the Company,

then and in each such event the  Company  will mail or cause to be mailed to the
Holder, at least ten days prior to such record date, a notice specifying (i) the
date on which any such record is to be taken for the  purpose of such  dividend,
distribution  or right,  and stating the amount and character of such  dividend,
distribution  or  right,  (ii)  the  date  on  which  any  such  reorganization,
reclassification,    recapitalization,    transfer,    consolidation,    merger,
dissolution, liquidation or winding-up is to take place, and the time, if any is
to be fixed,  as of which  the  holders  of  record  of  Common  Stock (or Other
Securities) shall be entitled to exchange their shares of Common Stock (or Other
Securities) for securities or other property deliverable on such reorganization,
reclassification,    recapitalization,    transfer,    consolidation,    merger,
dissolution,  liquidation or  winding-up,  and (iii) the amount and character of
any stock or other  securities,  or  rights or  options  with  respect  thereto,
proposed to be issued or granted,  the date of such proposed  issue or grant and
the  persons or class of persons to whom such  proposed  issue or grant is to be
offered or made. Such notice shall also state that the action in question or the
record date is subject to the  effectiveness  of a registration  statement under
the Securities Act of 1933, as amended (the  "Securities  Act"),  or a favorable


                                      -6-
<PAGE>

vote of stockholders if either is required. Such notice shall be mailed at least
ten days prior to the date  specified in such notice on which any such action is
to be taken or the record date, whichever is earlier.

         8. RESERVATION OF STOCK,  ETC.,  ISSUABLE ON EXERCISE OF WARRANTS.  The
Company will at all times  reserve and keep  available,  solely for issuance and
delivery on the exercise of this  Warrant,  all shares of Common Stock (or Other
Securities) from time to time issuable on the exercise of this Warrant.

         9. TRANSFER OF WARRANT.  This Warrant shall inure to the benefit of the
successors to and assigns of the Holder.  This Warrant and all rights hereunder,
in whole or in part,  is  registrable  at the  office or  agency of the  Company
referred  to below by the  Holder  hereof in  person  or by his duly  authorized
attorney, upon surrender of this Warrant properly endorsed.

         10. REGISTER OF WARRANTS.  The Company shall maintain, at the principal
office of the Company (or such other office as it may designate by notice to the
Holder  hereof),  a  register  in which the  Company  shall  record the name and
address of the person in whose name this Warrant has been issued, as well as the
name and address of each successor and prior owner of such Warrant.  The Company
shall  be  entitled  to treat  the  person  in whose  name  this  Warrant  is so
registered as the sole and absolute owner of this Warrant for all purposes.

         11.  EXCHANGE  OF  WARRANT.  This  Warrant  is  exchangeable,  upon the
surrender  hereof by the Holder  hereof at the  office or agency of the  Company
referred  to in  Section  10,  for  one or  more  new  Warrants  of  like  tenor
representing in the aggregate the right to subscribe for and purchase the number
of shares of Common Stock that may be subscribed for purchase hereunder, each of
such new Warrants to  represent  the right to  subscribe  for and purchase  such
number of shares as shall be  designated  by said  Holder  hereof at the time of
such surrender.

         12.  REPLACEMENT  OF  WARRANT.   On  receipt  of  evidence   reasonably
satisfactory  to the Company of the loss,  theft,  destruction  or mutilation of
this Warrant  and, in the case of any such loss,  theft or  destruction  of this
Warrant,   on  delivery  of  an  indemnity   agreement  or  security  reasonably
satisfactory  in form and  amount  to the  Company  or,  in the case of any such
mutilation,  on surrender and  cancellation of this Warrant,  the Company at its
expense will execute and deliver, in lieu thereof, a new Warrant of like tenor.

         13.  WARRANT  AGENT.  The Company may, by written notice to the Holder,
appoint  an agent  having an office in the  United  States of  America,  for the
purpose of issuing  Common Stock (or Other  Securities)  on the exercise of this
Warrant  pursuant to Section 1, exchanging this Warrant  pursuant to Section 11,
and replacing this Warrant pursuant to Section 12, or any of the foregoing,  and
thereafter any such issuance, exchange or replacement, as the case may be, shall
be made at such office by such agent.

         14.  REMEDIES.  The Company  stipulates that the remedies at law of the
Holder of this Warrant in the event of any default or threatened  default by the
Company  in the  performance  of or  compliance  with  any of the  terms of this

                                      -7-
<PAGE>

Warrant  are  not  and  will  not  be  adequate,  and  that  such  terms  may be
specifically  enforced by a decree for the specific performance of any agreement
contained  herein or by an  injunction  against a violation  of any of the terms
hereof or otherwise.

         15. NO RIGHTS OR LIABILITIES  AS A STOCKHOLDER.  This Warrant shall not
entitle the Holder  hereof to any voting rights or other rights as a stockholder
of the  Company.  No provision of this  Warrant,  in the absence of  affirmative
action by the Holder hereof to purchase  Common Stock,  and no mere  enumeration
herein of the rights or privileges of the Holder hereof,  shall give rise to any
liability  of such  Holder for the  Purchase  Price or as a  stockholder  of the
Company,  whether  such  liability is asserted by the Company or by creditors of
the Company.

         16. NOTICES, ETC. All notices and other communications from the Company
to the registered Holder of this Warrant shall be mailed by first
class  certified  mail,  postage  prepaid,  at such  address  as may  have  been
furnished  to the Company in writing by such Holder or at the address  shown for
such Holder on the register of Warrants referred to in Section 10.

         17.  INVESTMENT  REPRESENTATIONS.  By acceptance  of this Warrant,  the
Holder  represents  to the Company that this  Warrant is being  acquired for the
Holder's own account and for the purpose of  investment  and not with a view to,
or for sale in connection with, the distribution  thereof,  nor with any present
intention of  distributing  or selling the Warrant or the Common Stock  issuable
upon exercise of the Warrant.  The Holder  acknowledges that the Holder has been
afforded the  opportunity  to meet with the management of the Company and to ask
questions  of, and receive  answers  from,  such  management  and the  Company's
counsel about the business and affairs of the Company and  concerning  the terms
and  conditions  of the offering of this Warrant,  and to obtain any  additional
information,  to the extent that the Company possessed such information or could
acquire it  without  unreasonable  effort or  expense,  necessary  to verify the
accuracy of the information  otherwise obtained by or furnished to the Holder in
connection  with the offering of this Warrant.  The Holder asserts that it is an
"accredited  investor" as defined in Rule 501(a)(3) under the Securities Act, it
may be considered  to be a  sophisticated  investor,  is familiar with the risks
inherent in speculative  investments such as in the Company,  has such knowledge
and  experience  in  financial  and  business  matters  that  it is  capable  of
evaluating the merits and risks of the investment in this Warrant and the Common
Stock  issuable upon exercise of this Warrant,  and is able to bear the economic
risk of the  investment.  The Holder  acknowledges  and agrees that this Warrant
and, except as otherwise provided in the Registration  Rights Agreement dated as
of December 3, 1997 between the original  Holder and the Company,  as amended or
modified on the date hereof and as subsequently amended or modified from time to
time (the  "Registration  Rights  Agreement"),  the Common Stock  issuable  upon
exercise of this Warrant (if any) have not been (and at the time of  acquisition
by the  Holder,  will  not  have  been or will not  be),  registered  under  the
Securities  Act or under the  securities  laws of any state,  in  reliance  upon
certain  exemptive  provisions  of such  statutes.  The  Holder  recognizes  and
acknowledges  that  such  claims  of  exemption  are  based,  in part,  upon the
representations  of the Holder contained herein.  The Holder further  recognizes
and  acknowledges  that,  because this  Warrant  and,  except as provided in the
Registration  Rights Agreement,  the Common Stock issuable upon exercise of this
Warrant (if any) are unregistered,  they may not be eligible for resale, and may
only be resold in the future  pursuant to an  effective  registration  statement
under the Securities Act and any applicable  state  securities laws, or pursuant
to a valid exemption from such registration  requirements.  Unless the shares of

                                      -8-
<PAGE>

Common Stock have theretofore been registered for resale or are otherwise exempt
from  registration  under the  Securities  Act,  the Company may  require,  as a
condition  to the issuance of Common Stock upon the exercise of this Warrant (i)
in the case of an exercise in accordance with Section 1.1 hereof, a confirmation
as of the date of  exercise  of the  Holder's  representations  pursuant to this
Section 17 or (ii) in the case of an exercise  in  accordance  with  Section 1.2
hereof,  an  opinion  (in  form and  substance  reasonably  satisfactory  to the
Company) of counsel  reasonably  satisfactory  to the Company that the shares of
Common Stock to be issued upon such exercise may be issued without  registration
under the Securities Act.

         18.  LEGEND.  Unless  theretofore   registered  for  resale  under  the
Securities Act or otherwise exempt from registration under the Securities Act in
a manner that would no longer  require such legend when issued upon  exercise of
this Warrant and when resold thereafter, each certificate for shares issued upon
exercise of this Warrant shall bear the following legend:

                  The securities  represented by this  certificate have not been
                  registered  under the  Securities Act of 1933, as amended (the
                  "Act"),  or any state  securities laws. The sale to the holder
                  of these securities is not covered by a registration statement
                  under the Act or  registration  under state  securities  laws.
                  These  securities  have been acquired for investment  only and
                  may not be sold,  transferred  or  assigned  in the absence of
                  registration  of the  resale  thereof or an opinion of counsel
                  reasonably acceptable to the Company that such registration is
                  not required.

         19.  MISCELLANEOUS.  This  Warrant and any terms hereof may be changed,
waived,  discharged or terminated only by an instrument in writing signed by the
party against which enforcement or such change, waiver, discharge or termination
is sought.  This Warrant shall be construed and enforced in accordance  with and
governed by the  internal  laws of the State of New York.  The  headings in this
Warrant are for  purposes of  reference  only,  and shall not limit or otherwise
affect  any of the terms  hereof.  The  invalidity  or  unenforceability  of any
provision  hereof shall in no way affect the validity or  enforceability  of any
other provision.

                                      -9-
<PAGE>


         IN WITNESS  WHEREOF,  V-ONE  Corporation  has caused this Warrant to be
executed on its behalf by one of its officers thereunto duly authorized.

Dated:  September 22, 1998              V-ONE CORPORATION


                                  By:  /s/ Charles B. Griffis
                                      --------------------------------
                                        Name: Charles B. Griffis
                                        Title:  Senior Vice President and Chief
                                                  Financial Officer



                                      -10-
<PAGE>


                              FORM OF SUBSCRIPTION

                   (To be signed only on exercise of Warrant)

TO V-ONE CORPORATION

         1.  The undersigned  Holder of the attached  original, executed Warrant
hereby elects to exercise its purchase  right under such Warrant with respect to
______________  shares of Common  Stock,  as  defined in the  Warrant,  of V-ONE
Corporation, a Delaware corporation (the "Company").

         2.  The undersigned Holder (check one):

________(a)  elects  to  pay  the  aggregate  purchase  price for such shares of
             Common  Stock (the  "Exercise  Shares")  (i) by lawful money of the
             United  States or the  enclosed  certified  or official  bank check
             payable in United States dollars to the order of the Company in the
             amount of  $___________,  or (ii) by wire transfer of United States
             funds to the account of the Company in the amount of $____________,
             which  transfer  has been made  before or  simultaneously  with the
             delivery of this Form of Subscription  pursuant to the instructions
             of the Company;

             or

             elects to receive  shares of Common  Stock  having a value equal to
             the value of the Warrant  calculated in accordance with Section 1.2
             of the Warrant.

         3. Please issue a stock  certificate or certificates  representing  the
appropriate  number of shares of Common Stock in the name of the  undersigned or
in such other names as is specified below:

         Name:
                  ----------------------------------
         Address:
                  ----------------------------------

                  ----------------------------------

Dated:
      -------------------, -------            ----------------------------------
                                              (Signature must conform to name of
                                               Holder as specified on the face
                                               of the Warrant)

                                              
                                              ----------------------------------

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




THESE  SECURITIES HAVE NOT BEEN REGISTERED  UNDER THE SECURITIES ACT OF 1933, AS
AMENDED (THE "ACT"),  OR ANY STATE  SECURITIES  LAWS.  THE SALE TO THE HOLDER OF
THESE  SECURITIES  AND OF THE SHARES OF COMMON STOCK  ISSUABLE  UPON EXERCISE OF
THESE  SECURITIES ARE NOT COVERED BY A REGISTRATION  STATEMENT  UNDER THE ACT OR
REGISTRATION  UNDER STATE  SECURITIES LAWS. THESE SECURITIES HAVE BEEN ACQUIRED,
AND SUCH SHARES OF COMMON STOCK MUST BE ACQUIRED,  FOR  INVESTMENT  ONLY AND MAY
NOT BE SOLD,  TRANSFERRED  OR  ASSIGNED IN THE  ABSENCE OF  REGISTRATION  OF THE
RESALE  THEREOF OR AN OPINION OF COUNSEL  REASONABLY  ACCEPTABLE  TO THE COMPANY
THAT SUCH REGISTRATION IS NOT REQUIRED.

                                      Right to Purchase 389,441 Shares of Common
                                      Stock of V-ONE Corporation


                                V-ONE CORPORATION

                          Common Stock Purchase Warrant


         V-ONE  CORPORATION,  a Delaware  corporation  (the  "Company"),  hereby
certifies  that,  for value  received,  ADVANTAGE FUND II LTD., a British Virgin
Islands corporation,  or registered assigns (the "Holder"), is entitled, subject
to the terms set forth below,  to purchase  from the Company at any time or from
time to time after the date hereof, and before 5:00 p.m., New York City time, on
the Expiration Date (as defined  herein),  389,441 fully paid and  nonassessable
shares of Common Stock,  $.001 par value, of the Company at a purchase price per
share equal to the Purchase Price (as hereinafter  defined).  The number of such
shares of Common  Stock and the  Purchase  Price are  subject to  adjustment  as
provided in this Warrant.

         As used  herein  the  following  terms,  unless the  context  otherwise
requires, have the following respective meanings:

                  (a) The term "Business Day" as used herein shall mean a day on
         which the New York Stock Exchange is open for business.

                  (b) The term  "Common  Stock"  includes the  Company's  Common
         Stock, $.001 par value per share, as authorized on the date hereof, and
         any other  securities  into which or for which the Common  Stock may be
         converted  or  exchanged  pursuant  to  a  plan  of   recapitalization,
         reorganization, merger, sale of assets or otherwise.

                  (c) The term "Company" shall include V-ONE Corporation and any
         corporation  that shall  succeed to or assume the  obligation  of V-ONE
         Corporation hereunder.


<PAGE>

                  (d) The term "Expiration Date" refers to September 21, 2003.

                  (e) The term  "Other  Securities"  refers to any stock  (other
         than  Common  Stock) and other  securities  of the Company or any other
         person  (corporate or otherwise) that the Holder of this Warrant at any
         time shall be  entitled  to  receive,  or shall have  received,  on the
         exercise of this Warrant, in lieu of or in addition to Common Stock, or
         which at any time  shall be  issuable  or shall  have  been  issued  in
         exchange  for or in  replacement  of Common  Stock or Other  Securities
         pursuant to Section 4.

                  (f)    The term  "Purchase  Price" shall mean $4.77,  subject 
         to  adjustment  as provided in this Warrant.

              1.   EXERCISE OF WARRANT.
                   -------------------

              1.1  EXERCISE  AT  OPTION  OF  HOLDER.  (a)  This  Warrant  may be
exercised  by the  Holder  hereof in full or in part at any time or from time to
time during the exercise period  specified in the first  paragraph  hereof until
the  Expiration  Date by  surrender of this  Warrant and the  subscription  form
annexed hereto (duly  executed) by such Holder,  to the Company at its principal
office,  accompanied by payment,  in cash or by certified or official bank check
payable to the order of the Company in the amount  obtained by  multiplying  (a)
the  number  of  shares  of  Common  Stock  designated  by  the  Holder  in  the
subscription  form by (b) the  Purchase  Price  then in effect.  On any  partial
exercise,  the Company will forthwith  issue and deliver to or upon the order of
the Holder  hereof a new Warrant or  Warrants of like tenor,  in the name of the
Holder hereof or as such Holder (upon  payment by such Holder of any  applicable
transfer  taxes) may request,  providing  in the  aggregate on the face or faces
thereof for the  purchase of the number of shares of Common Stock for which such
Warrant or Warrants may still be exercised.

              (b)  Notwithstanding  any other  provision of this Warrant,  in no
event  shall the holder of this  Warrant be  entitled  at any time to purchase a
number of shares of Common  Stock on exercise of this  Warrant in excess of that
number of shares  upon  purchase of which the sum of (1) the number of shares of
Common Stock  beneficially  owned by such holder and any person whose beneficial
ownership  of shares of Common  Stock  would be  aggregated  with such  holder's
beneficial  ownership of shares of Common Stock for purposes of Section 13(d) of
the  Securities  Exchange Act of 1934,  as amended  (the  "Exchange  Act"),  and
Regulation 13D-G thereunder (each an "Aggregated  Person" and collectively,  the
"Aggregated  Persons")  (other than shares of Common Stock  deemed  beneficially
owned through the  ownership of the  unexercised  portion of this  Warrant,  any
warrant  containing a restriction  similar to this Section  1.1(b) and shares of
Series A  Convertible  Preferred  Stock,  $.001 par value,  of the Company  (the
"Series A Convertible  Preferred Stock"), if any, beneficially owned by all such
Aggregated  Persons) and (2) the number of shares of Common Stock  issuable upon
exercise of the portion of this Warrant with respect to which the  determination
in this  sentence is being made,  would  result in  beneficial  ownership by any
Aggregated  Person of more than 4.9% of the outstanding  shares of Common Stock.
For purposes of the immediately  preceding sentence,  beneficial ownership shall
be  determined  in  accordance  with  Section  13(d)  of the  Exchange  Act  and

                                      -2-
<PAGE>

Regulation 13D-G thereunder,  except as otherwise  provided in clause (1) of the
immediately preceding sentence.

              1.2  NET  ISSUANCE.   Notwithstanding  anything  to  the  contrary
contained in Section 1.1, the Holder may elect to exercise this Warrant in whole
or in part by receiving  shares of Common Stock equal to the net issuance  value
(as  determined  below) of this Warrant,  or any part hereof,  upon surrender of
this Warrant at the principal office of the Company together with notice of such
election,  in which  event the  Company  shall  issue to the  Holder a number of
shares of Common Stock computed using the following formula:

               X = Y (A-B)
                   -------
                      A

         Where:   X =  the number of shares of Common Stock to be issued to the 
                       Holder

                  Y =  the  number  of  shares  of Common Stock as to which this
                       Warrant  is to be exercised 

                  A =  the current fair market value of one share of Common 
                       Stock  calculated  as of the last trading day immediately
                       preceding the exercise of this Warrant

                  B =  the Purchase Price

              As used herein,  current fair market value of Common Stock as of a
specified date shall mean with respect to each share of Common Stock the average
of the closing bid prices of the Common Stock on the principal securities market
on which  the  Common  Stock  may at the time be  traded  over a period  of five
Business Days consisting of the day as of which the current fair market value of
a share of Common  Stock is being  determined  (or if such day is not a Business
Day, the Business Day next preceding such day) and the four consecutive Business
Days prior to such day. If on the date for which current fair market value is to
be  determined  the Common Stock is not  eligible for trading on any  securities
market, the current fair market value of Common Stock shall be the highest price
per share  which the  Company  could  then  obtain  from a willing  buyer (not a
current  employee or  director)  for shares of Common Stock sold by the Company,
from authorized but unissued shares, as determined in good faith by the Board of
Directors  of the  Company,  unless  prior to such date the  Company  has become
subject to a merger,  acquisition or other  consolidation  pursuant to which the
Company is not the surviving  party, in which case the current fair market value
of the Common  Stock shall be deemed to be the value  received by the holders of
the  Company's  Common Stock for each share  thereof  pursuant to the  Company's
acquisition.

              2. DELIVERY OF STOCK CERTIFICATES,  ETC., ON EXERCISE.  As soon as
practicable  after the exercise of this  Warrant,  and in any event within three
days thereafter,  the Company at its expense (including the payment by it of any
applicable  issue or stamp  taxes)  will  cause to be  issued in the name of and


                                      -3-
<PAGE>

delivered to the Holder  hereof,  or as such Holder (upon payment by such Holder
of any applicable  transfer taxes) may direct, a certificate or certificates for
the  number of fully  paid and  nonassessable  shares of Common  Stock (or Other
Securities)  to which such Holder  shall be entitled on such  exercise,  in such
denominations  as  may be  requested  by  such  Holder,  plus,  in  lieu  of any
fractional share to which such Holder would otherwise be entitled, cash equal to
such fraction multiplied by the then current fair market value (as determined in
accordance with subsection 1.2) of one full share, together with any other stock
or other securities any property  (including  cash,  where  applicable) to which
such Holder is entitled upon such  exercise  pursuant to Section 1 or otherwise.
Upon exercise of this Warrant as provided  herein,  the Company's  obligation to
issue and  deliver the  certificates  for Common  Stock  shall be  absolute  and
unconditional,  irrespective  of any action or inaction by the Holder to enforce
the same,  any waiver or consent  with  respect to any  provision  thereof,  the
recovery of any  judgment  against any person or any action to enforce the same,
any failure or delay in the  enforcement of any other  obligation of the Company
to  the  Holder,  or  any  setoff,  counterclaim,   recoupment,   limitation  or
termination,  or any breach or alleged  breach by the Holder or any other person
of any obligation to the Company or any violation or alleged violation of law by
the Holder or any other person,  and irrespective of any other circumstance that
might otherwise limit such obligation of the Company to the Holder in connection
with such exercise.  If the Company fails to issue and deliver the  certificates
for the  Common  Stock to the  Holder  pursuant  to the first  sentence  of this
paragraph  as and when  required to do so, in addition to any other  liabilities
the Company may have hereunder and under  applicable  law, the Company shall pay
or  reimburse  the Holder on demand for all  out-of-pocket  expenses  including,
without limitation, fees and expenses of legal counsel incurred by the Holder as
a result of such failure.

              3.  ADJUSTMENT  FOR  DIVIDENDS  IN OTHER  STOCK,  PROPERTY,  ETC.;
RECLASSIFICATION, ETC. In case at any time or from time to time, all the holders
of Common Stock (or Other Securities)  shall have received,  or (on or after the
record date fixed for the  determination  of  stockholders  eligible to receive)
shall have become entitled to receive, without payment therefor,

                  (a) other or additional  stock or other securities or property
         (other than cash) by way of dividend, or

                  (b) any cash (excluding  cash dividends  payable solely out of
         earnings or earned surplus of the Company), or

                  (c) other or additional  stock or other securities or property
         (including  cash)  by  way  of  spin-off,  split-up,  reclassification,
         recapitalization,   combination   of   shares  or   similar   corporate
         rearrangement,

other than additional shares of Common Stock (or Other  Securities)  issued as a
stock dividend or in a stock-split (adjustments in respect of which are provided
for in Section 5), then and in each such case the Holder of this Warrant, on the
exercise  hereof as  provided  in Section 1, shall be  entitled  to receive  the
amount of stock and other  securities and property  (including cash in the cases
referred  to in  subdivisions  (b) and (c) of this  Section 3) that such  Holder

                                      -4-
<PAGE>

would  hold on the date of such  exercise  if on the date  hereof the Holder had
been the holder of record of the number of shares of Common  Stock called for on
the face of this  Warrant  and had  thereafter,  during the period from the date
hereof to and including the date of such exercise,  retained such shares and all
such other or additional stock and other securities and property (including cash
in the  case  referred  to in  subdivisions  (b)  and  (c) of  this  Section  3)
receivable by the Holder as aforesaid  during such period,  giving effect to all
adjustments called for during such period by Section 4.

              4. EXERCISE UPON  REORGANIZATION,  CONSOLIDATION,  MERGER, ETC. In
case at any  time  or from  time  to  time,  the  Company  shall  (a)  effect  a
reorganization,  (b) consolidate with or merge into any other person, (c) effect
an exchange of  outstanding  shares of the Company for  securities  of any other
person or (d) transfer all or  substantially  all of its properties or assets to
any other person under any plan or arrangement  contemplating the dissolution of
the Company,  then,  in each such case,  as a condition of such  reorganization,
consolidation,  merger,  share exchange,  sale or conveyance,  the Company shall
cause  effective  provisions  to be made so that the Holder shall have the right
thereafter, by exercising this Warrant (in lieu of the shares of Common Stock of
the Company  purchasable and receivable upon exercise of the rights  represented
hereby immediately prior to such transaction) to purchase the kind and amount of
shares of stock and other  securities and property  (including  cash) receivable
upon  such  reorganization,  consolidation,  merger,  share  exchange,  sale  or
conveyance  by a holder of the number of shares of Common  Stock that might have
been  received  upon  exercise  of  this  Warrant   immediately  prior  to  such
reorganization,  consolidation,  merger,  share  exchange,  sale or  conveyance;
provided,  however, that in the event (a) the value of the stock,  securities or
other assets or property  (determined in good faith by the Board of Directors of
the  Company)  issuable or payable  with respect to one share of Common Stock of
the  Company  purchasable  and  receivable  upon  the  exercise  of  the  rights
represented  hereby  immediately  prior to such  transaction is in excess of the
Purchase   Price   hereof  in  effect  at  the  time  of  such   reorganization,
consolidation,  merger, share exchange,  sale or conveyance (after giving effect
to any  adjustment in such Purchase Price required to be made under the terms of
this  Warrant),  and  (b)  the  securities,  if  any,  to be  received  in  such
reorganization,  consolidation,  merger, share exchange,  sale or conveyance are
publicly traded,  then if the Company gives the Holder at least 20 Business Days
(or such lesser  period as the Company gives notice of such  transaction  to the
holders  of the  outstanding  shares  of  Common  Stock)  prior  notice  of such
reorganization,  merger,  share exchange,  sale or conveyance this Warrant shall
expire unless  exercised prior to such  reorganization,  consolidation,  merger,
share exchange, sale or conveyance.  Any such provision shall include provisions
for  adjustments  in respect of such  shares of stock and other  securities  and
property  that  shall  be as  nearly  equivalent  as may be  practicable  to the
adjustments  provided for in this Warrant.  The provisions of this Section shall
apply to successive reorganizations,  consolidations,  mergers, share exchanges,
sales and conveyances.

              5.  ADJUSTMENT  FOR  EXTRAORDINARY  EVENTS.  In the event that the
Company shall (i) issue  additional  shares of the Common Stock as a dividend or
other distribution on outstanding Common Stock, (ii) subdivide or reclassify its
outstanding  shares of Common Stock, or (iii) combine its outstanding  shares of
Common Stock into a smaller number of shares of Common Stock, then, in each such
event,  the Purchase  Price  shall,  simultaneously  with the  happening of such


                                      -5-
<PAGE>

event,  be adjusted by multiplying  the then Purchase  Price by a fraction,  the
numerator  of which  shall be the number of shares of Common  Stock  outstanding
immediately prior to such event and the denominator of which shall be the number
of shares of Common  Stock  outstanding  immediately  after such event,  and the
product so obtained shall  thereafter be the Purchase Price then in effect.  The
Purchase Price, as so adjusted,  shall be readjusted in the same manner upon the
happening of any successive  event or events described herein in this Section 5.
The Holder of this Warrant shall thereafter,  on the exercise hereof as provided
in  Section 1, be  entitled  to receive  that  number of shares of Common  Stock
determined  by  multiplying  the number of shares of Common  Stock that would be
issuable on such exercise as of immediately prior to such issuance by a fraction
of which (i) the numerator is the Purchase Price in effect  immediately prior to
such issuance and (ii) the  denominator  is the Purchase  Price in effect on the
date of such exercise.

              6. FURTHER  ASSURANCES.  The Company will take all action that may
be  necessary or  appropriate  in order that the Company may validly and legally
issue fully paid and nonassessable  shares of stock, free from all taxes,  liens
and charges  with  respect to the issue  thereof,  on the exercise of all or any
portion of this Warrant from time to time outstanding.

              7. NOTICES OF RECORD DATE, ETC. In the event of

              (a) any taking by the  Company  of a record of the  holders of any
        class of securities for the purpose of determining  the holders  thereof
        who are  entitled to receive any  dividend on, or any right to subscribe
        for,  purchase or otherwise  acquire any shares of stock of any class or
        any other securities or property, or to receive any other right, or

              (b)   any   capital    reorganization   of   the   Company,    any
        reclassification or recapitalization of the capital stock of the Company
        or any transfer of all or substantially all of the assets of the Company
        to or  consolidation  or  merger of the  Company  with or into any other
        person, or

              (c) any  voluntary  or  involuntary  dissolution,  liquidation  or
        winding-up of the Company,

then and in each such event the  Company  will mail or cause to be mailed to the
Holder, at least ten days prior to such record date, a notice specifying (i) the
date on which any such record is to be taken for the  purpose of such  dividend,
distribution  or right,  and stating the amount and character of such  dividend,
distribution  or  right,  (ii)  the  date  on  which  any  such  reorganization,
reclassification,    recapitalization,    transfer,    consolidation,    merger,
dissolution, liquidation or winding-up is to take place, and the time, if any is
to be fixed,  as of which  the  holders  of  record  of  Common  Stock (or Other
Securities) shall be entitled to exchange their shares of Common Stock (or Other
Securities) for securities or other property deliverable on such reorganization,
reclassification,    recapitalization,    transfer,    consolidation,    merger,
dissolution,  liquidation or  winding-up,  and (iii) the amount and character of
any stock or other  securities,  or  rights or  options  with  respect  thereto,
proposed to be issued or granted,  the date of such proposed  issue or grant and
the  persons or class of persons to whom such  proposed  issue or grant is to be
offered or made. Such notice shall also state that the action in question or the
record date is subject to the  effectiveness  of a registration  statement under
the Securities Act of 1933, as amended (the  "Securities  Act"),  or a favorable

                                      -6-
<PAGE>

vote of stockholders if either is required. Such notice shall be mailed at least
ten days prior to the date  specified in such notice on which any such action is
to be taken or the record date, whichever is earlier.

              8. RESERVATION OF STOCK,  ETC.,  ISSUABLE ON EXERCISE OF WARRANTS.
The Company will at all times  reserve and keep  available,  solely for issuance
and  delivery on the  exercise of this  Warrant,  all shares of Common Stock (or
Other Securities) from time to time issuable on the exercise of this Warrant.

              9. TRANSFER OF WARRANT. This Warrant shall inure to the benefit of
the  successors  to and  assigns  of the  Holder.  This  Warrant  and all rights
hereunder,  in whole or in part, is  registrable  at the office or agency of the
Company  referred  to  below  by the  Holder  hereof  in  person  or by his duly
authorized attorney, upon surrender of this Warrant properly endorsed.

              10.  REGISTER OF  WARRANTS.  The Company  shall  maintain,  at the
principal  office of the Company (or such other  office as it may  designate  by
notice to the Holder  hereof),  a register in which the Company shall record the
name and address of the person in whose name this  Warrant has been  issued,  as
well as the name and address of each  successor and prior owner of such Warrant.
The Company  shall be entitled to treat the person in whose name this Warrant is
so registered as the sole and absolute owner of this Warrant for all purposes.

              11. EXCHANGE OF WARRANT.  This Warrant is  exchangeable,  upon the
surrender  hereof by the Holder  hereof at the  office or agency of the  Company
referred  to in  Section  10,  for  one or  more  new  Warrants  of  like  tenor
representing in the aggregate the right to subscribe for and purchase the number
of shares of Common Stock that may be subscribed for purchase hereunder, each of
such new Warrants to  represent  the right to  subscribe  for and purchase  such
number of shares as shall be  designated  by said  Holder  hereof at the time of
such surrender.

              12.  REPLACEMENT  OF WARRANT.  On receipt of  evidence  reasonably
satisfactory  to the Company of the loss,  theft,  destruction  or mutilation of
this Warrant  and, in the case of any such loss,  theft or  destruction  of this
Warrant,   on  delivery  of  an  indemnity   agreement  or  security  reasonably
satisfactory  in form and  amount  to the  Company  or,  in the case of any such
mutilation,  on surrender and  cancellation of this Warrant,  the Company at its
expense will execute and deliver, in lieu thereof, a new Warrant of like tenor.

              13.  WARRANT  AGENT.  The Company  may,  by written  notice to the
Holder,  appoint an agent having an office in the United States of America,  for
the purpose of issuing  Common  Stock (or Other  Securities)  on the exercise of
this Warrant  pursuant to Section 1, exchanging this Warrant pursuant to Section
11, and replacing this Warrant  pursuant to Section 12, or any of the foregoing,
and thereafter any such issuance,  exchange or replacement,  as the case may be,
shall be made at such office by such agent.

              14. REMEDIES.  The Company  stipulates that the remedies at law of
the Holder of this Warrant in the event of any default or threatened  default by
the Company in the  performance  of or compliance  with any of the terms of this

                                      -7-
<PAGE>

Warrant  are  not  and  will  not  be  adequate,  and  that  such  terms  may be
specifically  enforced by a decree for the specific performance of any agreement
contained  herein or by an  injunction  against a violation  of any of the terms
hereof or otherwise.

              15. NO RIGHTS OR LIABILITIES AS A STOCKHOLDER.  This Warrant shall
not  entitle  the  Holder  hereof  to any  voting  rights  or other  rights as a
stockholder  of the Company.  No provision  of this  Warrant,  in the absence of
affirmative  action by the Holder hereof to purchase  Common Stock,  and no mere
enumeration herein of the rights or privileges of the Holder hereof,  shall give
rise to any liability of such Holder for the Purchase  Price or as a stockholder
of the  Company,  whether  such  liability  is  asserted  by the  Company  or by
creditors of the Company.

              16. NOTICES,  ETC. All notices and other  communications  from the
Company to the registered  Holder of this Warrant shall be mailed by first class
certified mail,  postage prepaid,  at such address as may have been furnished to
the Company in writing by such Holder or at the address shown for such Holder on
the register of Warrants referred to in Section 10.

              17. INVESTMENT REPRESENTATIONS. By acceptance of this Warrant, the
Holder  represents  to the Company that this  Warrant is being  acquired for the
Holder's own account and for the purpose of  investment  and not with a view to,
or for sale in connection with, the distribution  thereof,  nor with any present
intention of  distributing  or selling the Warrant or the Common Stock  issuable
upon exercise of the Warrant.  The Holder  acknowledges that the Holder has been
afforded the  opportunity  to meet with the management of the Company and to ask
questions  of, and receive  answers  from,  such  management  and the  Company's
counsel about the business and affairs of the Company and  concerning  the terms
and  conditions  of the offering of this Warrant,  and to obtain any  additional
information,  to the extent that the Company possessed such information or could
acquire it  without  unreasonable  effort or  expense,  necessary  to verify the
accuracy of the information  otherwise obtained by or furnished to the Holder in
connection  with the offering of this Warrant.  The Holder asserts that it is an
"accredited  investor" as defined in Rule 501(a)(3) under the Securities Act, it
may be considered  to be a  sophisticated  investor,  is familiar with the risks
inherent in speculative  investments such as in the Company,  has such knowledge
and  experience  in  financial  and  business  matters  that  it is  capable  of
evaluating the merits and risks of the investment in this Warrant and the Common
Stock  issuable upon exercise of this Warrant,  and is able to bear the economic
risk of the  investment.  The Holder  acknowledges  and agrees that this Warrant
and, except as otherwise provided in the Registration  Rights Agreement dated as
of December 3, 1997 between the original  Holder and the Company,  as amended or
modified on the date hereof and as subsequently amended or modified from time to
time (the  "Registration  Rights  Agreement"),  the Common Stock  issuable  upon
exercise of this Warrant (if any) have not been (and at the time of  acquisition
by the  Holder,  will  not  have  been or will not  be),  registered  under  the
Securities  Act or under the  securities  laws of any state,  in  reliance  upon
certain  exemptive  provisions  of such  statutes.  The  Holder  recognizes  and
acknowledges  that  such  claims  of  exemption  are  based,  in part,  upon the
representations  of the Holder contained herein.  The Holder further  recognizes
and  acknowledges  that,  because this  Warrant  and,  except as provided in the
Registration  Rights Agreement,  the Common Stock issuable upon exercise of this
Warrant (if any) are unregistered,  they may not be eligible for resale, and may
only be resold in the future  pursuant to an  effective  registration  statement
under the Securities Act and any applicable  state  securities laws, or pursuant
to a valid exemption from such registration  requirements.  Unless the shares of

                                      -8-
<PAGE>

Common Stock have theretofore been registered for resale or are otherwise exempt
from  registration  under the  Securities  Act,  the Company may  require,  as a
condition  to the issuance of Common Stock upon the exercise of this Warrant (i)
in the case of an exercise in accordance with Section 1.1 hereof, a confirmation
as of the date of  exercise  of the  Holder's  representations  pursuant to this
Section 17 or (ii) in the case of an exercise  in  accordance  with  Section 1.2
hereof,  an  opinion  (in  form and  substance  reasonably  satisfactory  to the
Company) of counsel  reasonably  satisfactory  to the Company that the shares of
Common Stock to be issued upon such exercise may be issued without  registration
under the Securities Act.

              18.  LEGEND.  Unless  theretofore  registered for resale under the
Securities Act or otherwise exempt from registration under the Securities Act in
a manner that would no longer  require such legend when issued upon  exercise of
this Warrant and when resold thereafter, each certificate for shares issued upon
exercise of this Warrant shall bear the following legend:

              The  securities  represented  by this  certificate  have  not been
              registered  under the  Securities  Act of 1933,  as  amended  (the
              "Act"),  or any state  securities  laws. The sale to the holder of
              these securities is not covered by a registration  statement under
              the  Act  or  registration  under  state  securities  laws.  These
              securities  have been acquired for investment  only and may not be
              sold,  transferred or assigned in the absence of  registration  of
              the resale thereof or an opinion of counsel reasonably  acceptable
              to the Company that such registration is not required.

              19.  MISCELLANEOUS.  This  Warrant  and any  terms  hereof  may be
changed,  waived,  discharged  or  terminated  only by an  instrument in writing
signed by the party against which enforcement or such change, waiver,  discharge
or  termination  is sought.  This  Warrant  shall be  construed  and enforced in
accordance  with and governed by the internal laws of the State of New York. The
headings in this Warrant are for purposes of reference only, and shall not limit
or otherwise affect any of the terms hereof. The invalidity or  unenforceability
of any provision hereof shall in no way affect the validity or enforceability of
any other provision.

                                      -9-
<PAGE>


              IN WITNESS WHEREOF,  V-ONE  Corporation has caused this Warrant to
be executed on its behalf by one of its officers thereunto duly authorized.

Dated:  September 22, 1998              V-ONE CORPORATION


                                   By:  /s/ Charles B. Griffis
                                        -------------------------------
                                         Name: Charles B. Griffis
                                         Title:  Senior Vice President and Chief
                                                  Financial Officer


<PAGE>


                              FORM OF SUBSCRIPTION

                   (To be signed only on exercise of Warrant)

TO V-ONE CORPORATION

         1. The undersigned  Holder of the attached  original,  executed Warrant
hereby elects to exercise its purchase  right under such Warrant with respect to
______________  shares of Common  Stock,  as  defined in the  Warrant,  of V-ONE
Corporation, a Delaware corporation (the "Company").

         2. The undersigned Holder (check one):

_________(a) elects  to  pay  the  aggregate  purchase  price for such shares of
             Common  Stock (the  "Exercise  Shares")  (i) by lawful money of the
             United  States or the  enclosed  certified  or official  bank check
             payable in United States dollars to the order of the Company in the
             amount of  $___________,  or (ii) by wire transfer of United States
             funds to the account of the Company in the amount of $____________,
             which  transfer  has been made  before or  simultaneously  with the
             delivery of this Form of Subscription  pursuant to the instructions
             of the Company;

             or

_________(b) elects  to  receive  shares of Common Stock having a value equal to
             the value of the  Warrant calculated in accordance with Section 1.2
             of the Warrant.

         3. Please issue a stock  certificate or certificates  representing  the
appropriate  number of shares of Common Stock in the name of the  undersigned or
in such other names as is specified below:

         Name:
                  --------------------------------
         Address:
                  --------------------------------

                  --------------------------------


Dated:
      -------------------                  -------------------------------------
                                           (Signature  must  conform  to name of
                                            Holder  as  specified on the face of
                                            the Warrant)


                                           -------------------------------------

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



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