Document:

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                                                                    EXHIBIT 10.4

                                RSA SECURITY INC.

                              AMENDED AND RESTATED
                 1998 NON-OFFICER EMPLOYEE STOCK INCENTIVE PLAN

1.   RESTATEMENT, PURPOSE

     (a)  RESTATEMENT. This Amended and Restated 1998 Non-Officer Employee Stock
Incentive Plan (the "Plan") of RSA Security Inc., a Delaware corporation (the
"Company"), amends and restates the 1998 Non-Officer Employee Stock Incentive
Plan of the Company initially approved by the Company's Board of Directors on
December 9, 1998 and subsequently amended.

     (b)  PURPOSE. The purpose of the Plan is to advance the interests of the
Company's stockholders by enhancing the Company's ability to attract, retain and
motivate persons who make (or are expected to make) important contributions to
the Company by providing such persons with equity ownership opportunities and
performance-based incentives and thereby better aligning the interests of such
persons with those of the Company's stockholders. Except where the context
otherwise requires, the term "Company" shall include any of the Company's
present or future subsidiary corporations as defined in Section 424(f) of the
Internal Revenue Code of 1986, as amended, and any regulations promulgated
thereunder (the "Code").

2.   ELIGIBILITY

     All of the Company's employees (and any individuals who have accepted an
offer for employment), consultants and advisors, other than those who are also
officers (within the meaning of Section 16 of the Securities Exchange Act, as
amended (the "Exchange Act"), and the rules and regulations promulgated
thereunder) or directors of the Company, are eligible to be granted options,
restricted stock awards, or other stock-based awards (each, an "Award") under
the Plan. Each person who has been granted an Award under the Plan shall be
deemed a "Participant."

3.   ADMINISTRATION, DELEGATION

     (a)  ADMINISTRATION BY BOARD OF DIRECTORS. The Plan will be administered by
the Board of Directors of the Company (the "Board"). The Board shall have
authority to grant Awards and to adopt, amend and repeal such administrative
rules, guidelines and practices relating to the Plan as it shall deem advisable.
The Board may correct any defect, supply any omission or reconcile any
inconsistency in the Plan or any Award in the manner and to the extent it shall
deem expedient to carry the Plan into effect and it shall be the sole and final
judge of such expediency. All decisions by the Board shall be made in the
Board's sole discretion and shall be final and binding on all persons having or
claiming any interest in the Plan or in any Award. No director or person acting
pursuant to the authority delegated by the Board shall be liable for any action
or determination relating to or under the Plan made in good faith.

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     (b)  DELEGATION TO EXECUTIVE OFFICERS. To the extent permitted by
applicable law, the Board may delegate to one or more executive officers of the
Company the power to make Awards and exercise such other powers under the Plan
as the Board may determine, provided that the Board shall fix the maximum number
of shares subject to Awards and the maximum number of shares for any one
Participant to be made by such executive officers.

     (c)  APPOINTMENT OF COMMITTEES. To the extent permitted by applicable law,
the Board may delegate any or all of its powers under the Plan to one or more
committees or subcommittees of the Board (a "Committee"). All references in the
Plan to the "Board" shall mean the Board or a Committee of the Board or the
executive officer referred to in Section 3(b) to the extent that the Board's
powers or authority under the Plan have been delegated to such Committee or
executive officer.

4.   STOCK AVAILABLE FOR AWARDS

     Subject to adjustment under Section 8, Awards may be made under the Plan
for up to 4,760,959 shares of common stock, $.01 par value per share, of the
Company (the "Common Stock"). If any Award expires or is terminated, surrendered
or canceled without having been fully exercised or is forfeited in whole or in
part or results in any Common Stock not being issued, the unused Common Stock
covered by such Award shall again be available for the grant of Awards under the
Plan. Shares issued under the Plan may consist in whole or in part of authorized
but unissued shares or treasury shares.

5.   NONSTATUTORY STOCK OPTIONS

     (a)  GENERAL. The Board may grant nonstatutory stock options to purchase
Common Stock (each, an "Option") and determine the number of shares of Common
Stock to be covered by each Option, the exercise price of each Option and the
conditions and limitations applicable to the exercise of each Option, including
conditions relating to applicable federal or state securities laws, as it
considers necessary or advisable. No Option granted under the Plan shall be
intended to be an "incentive stock option" as defined in Section 422 of the
Code.

     (b)  EXERCISE PRICE. The Board shall establish the exercise price at the
time each Option is granted and specify it in the applicable option agreement.

     (c)  DURATION OF OPTIONS. Each Option shall be exercisable at such times
and subject to such terms and conditions as the Board may specify in the
applicable option agreement; provided that Options may not be granted for a term
in excess of ten years.

     (d)  EXERCISE OF OPTION. Options may be exercised by delivery to the
Company of a written notice of exercise signed by the proper person or by any
other form of notice (including electronic notice) approved by the Board
together with payment in full as specified in Section 5(e) for the number of
shares for which the Option is exercised.

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     (e)  PAYMENT UPON EXERCISE. Common Stock purchased upon the exercise of an
Option granted under the Plan shall be paid for as follows:

          (1)  in cash or by check, payable to the order of the Company;

          (2)  except as the Board may, in its sole discretion, otherwise
provide in an option agreement, by (i) delivery of an irrevocable and
unconditional undertaking by a creditworthy broker to deliver promptly to the
Company sufficient funds to pay the exercise price or (ii) delivery by the
Participant to the Company of a copy of irrevocable and unconditional
instructions to a creditworthy broker to deliver promptly to the Company cash or
a check sufficient to pay the exercise price;

          (3)  to the extent permitted by the Board, in its sole discretion, by
delivery of shares of Common Stock owned by the Participant valued at their fair
market value as determined by (or in a manner approved by) the Board in good
faith ("Fair Market Value"), provided (i) such method of payment is then
permitted under applicable law and (ii) such Common Stock was owned by the
Participant at least six months prior to such delivery;

          (4)  to the extent permitted by the Board, in its sole discretion, by
(i) delivery of a promissory note of the Participant to the Company on terms
determined by the Board, or (ii) payment of such other lawful consideration as
the Board may determine; or

          (5)  by any combination of the above-permitted forms of payment.

     (f)  DEFERRAL. Any Participant who is a participant in a deferred
compensation plan established by the Company may elect with the permission of
the Board and in accordance with rules established by the Board to defer the
receipt of any shares of Common Stock issuable upon the exercise of an Option
provided that such election is irrevocable and made at least that number of days
prior to the exercise of the Option which shall be determined by the Board. The
Participant's account under such deferred compensation plan shall be credited
with a number of stock units equal to the number of shares so deferred.

6.   RESTRICTED STOCK

     (a)  GRANTS. The Board may grant Awards entitling recipients to acquire
shares of Common Stock, subject to the right of the Company to repurchase all or
part of such shares at their issue price or other stated or formula price (or to
require forfeiture of such shares if issued at no cost) from the recipient in
the event that conditions specified by the Board in the applicable Award are not
satisfied prior to the end of the applicable restriction period or periods
established by the Board for such Award (each, a "Restricted Stock Award").

     (b)  TERMS AND CONDITIONS. The Board shall determine the terms and
conditions of any such Restricted Stock Award, including the conditions for
repurchase (or forfeiture) and the issue price, if any. Any stock certificates
ssued in respect of a Restricted Stock Award shall be

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registered in the name of the Participant and, unless otherwise determined by
the Board, deposited by the Participant, together with a stock power endorsed in
blank, with the Company (or its designee). At the expiration of the applicable
restriction periods, the Company (or such designee) shall deliver the
certificates no longer subject to such restrictions to the Participant or if the
Participant has died, to the beneficiary designated, in a manner determined by
the Board, by a Participant to receive amounts due or exercise rights of the
Participant in the event of the Participant's death (the "Designated
Beneficiary"). In the absence of an effective designation by a Participant,
Designated Beneficiary shall mean the Participant's estate.

7.   OTHER STOCK-BASED AWARDS

     The Board shall have the right to grant other Awards based upon the Common
Stock having such terms and conditions as the Board may determine, including the
grant of shares based upon certain conditions, the grant of securities
convertible into Common Stock and the grant of stock appreciation rights.

8.   ADJUSTMENTS FOR CHANGES IN COMMON STOCK AND CERTAIN OTHER EVENTS

     (a)  CHANGES IN CAPITALIZATION. In the event of any stock split, reverse
stock split, stock dividend, recapitalization, combination of shares,
reclassification of shares, spin-off or other similar change in capitalization
or event, or any distribution to holders of Common Stock other than a normal
cash dividend, (i) the number and class of securities available under this Plan,
(ii) the number and class of securities and exercise price per share subject to
each outstanding Option, (iii) the repurchase price per share subject to each
outstanding Restricted Stock Award, and (iv) the terms of each other outstanding
Award shall be appropriately adjusted by the Company (or substituted Awards may
be made, if applicable) to the extent the Board shall determine, in good faith,
that such an adjustment (or substitution) is necessary and appropriate. If this
Section 8(a) applies and Section 8(c) also applies to any event, Section 8(c)
shall be applicable to such event, and this Section 8(a) shall not be
applicable.

     (b)  LIQUIDATION OR DISSOLUTION. In the event of a proposed liquidation or
dissolution of the Company, the Board shall upon written notice to the
Participants provide that all then-unexercised Options will (i) become
exercisable in full as of a specified time at least ten business days prior to
the effective date of such liquidation or dissolution and (ii) terminate
effective upon such liquidation or dissolution, except to the extent exercised
before such effective date. The Board may specify the effect of a liquidation or
dissolution on any Restricted Stock Award or other Award granted under the Plan
at the time of the grant of such Award.

     (c)  ACQUISITION EVENTS

          (1)  DEFINITION. An "Acquisition Event" shall mean: (a) any merger or
consolidation of the Company with or into another entity as a result of which
the Common Stock is converted into or exchanged for the right to receive cash,
securities or other property or (b) any

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exchange of shares of the Company for cash, securities or other property
pursuant to a statutory share exchange transaction.

              (2)    CONSEQUENCES OF AN ACQUISITION EVENT ON OPTIONS. Upon the
                     occurrence of an Acquisition Event, or the execution by the
                     Company of any agreement with respect to an Acquisition
                     Event, the Board may take any one or more of the following
                     actions:

              (i)    provide that outstanding Options shall be assumed, or
                     equivalent options shall be substituted, by the acquiring
                     or succeeding corporation (or an affiliate thereof);

              (ii)   upon written notice to the Participants, provide that all
                     then unexercised Options will become exercisable in full as
                     of a specified time prior to the Acquisition Event and will
                     terminate immediately prior to the consummation of such
                     Acquisition Event, except to the extent exercised by the
                     Participants before the consummation of such Acquisition
                     Event;

              (iii)  in the event of an Acquisition Event under the terms of
                     which holders of Common Stock will receive upon
                     consummation thereof a cash payment for each share of
                     Common Stock surrendered pursuant to such Acquisition Event
                     (the "Acquisition Price"), provide that all outstanding
                     Options shall terminate upon consummation of such
                     Acquisition Event and each Participant shall receive, in
                     exchange therefor, a cash payment equal to the amount (if
                     any) by which (A) the Acquisition Price multiplied by the
                     number of shares of Common Stock subject to such
                     outstanding Options (to the extent then exercisable),
                     exceeds (B) the aggregate exercise price of such Options;
                     and

              (iv)   provide that all or any outstanding Options shall become
                     exercisable in full immediately prior to such event.

              (3)    CONSEQUENCES OF AN ACQUISITION EVENT ON RESTRICTED STOCK
AWARDS. Upon the occurrence of an Acquisition Event, the repurchase and other
rights of the Company under each outstanding Restricted Stock Award shall inure
to the benefit of the Company's successor and shall apply to the cash,
securities or other property which the Common Stock was converted into or
exchanged for pursuant to such Acquisition Event in the same manner and to the
same extent as they applied to the Common Stock subject to such Restricted Stock
Award.

              (4)    CONSEQUENCES OF AN ACQUISITION EVENT ON OTHER AWARDS. The
Board shall specify the effect of an Acquisition Event on any other Award
granted under the Plan at the time of the grant of such Award.

9.   GENERAL PROVISIONS APPLICABLE TO AWARDS

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     (a)  TRANSFERABILITY OF AWARDS. Except as the Board may otherwise determine
or provide in an Award, Awards shall not be sold, assigned, transferred, pledged
or otherwise encumbered by the person to whom they are granted, either
voluntarily or by operation of law, except by will or the laws of descent and
distribution, and, during the life of the Participant, shall be exercisable only
by the Participant. References to a Participant, to the extent relevant in the
context, shall include references to authorized transferees.

     (b)  DOCUMENTATION. Each Award shall be evidenced by a written instrument
in such form as the Board shall determine. Each Award may contain terms and
conditions in addition to those set forth in the Plan.

     (c)  BOARD DISCRETION. Except as otherwise provided by the Plan, each Award
may be made alone or in addition or in relation to any other Award. The terms of
each Award need not be identical, and the Board need not treat Participants
uniformly.

     (d)  TERMINATION OF STATUS. The Board shall determine the effect on an
Award of the disability, death, retirement, authorized leave of absence or other
change in the employment or other status of a Participant and the extent to
which, and the period during which, the Participant, the Participant's legal
representative, conservator, guardian or Designated Beneficiary may exercise
rights under the Award.

     (e)  WITHHOLDING. Each Participant shall pay to the Company, or make
provision satisfactory to the Board for payment of, any taxes required by law to
be withheld in connection with Awards to such Participant no later than the date
of the event creating the tax liability. Except as the Board may otherwise
provide in an Award, when the Common Stock is registered under the Exchange Act,
Participants may, to the extent then permitted under applicable law, satisfy
such tax obligations in whole or in part by delivery of shares of Common Stock,
including shares retained from the Award creating the tax obligation, valued at
their Fair Market Value. The Company may, to the extent permitted by law, deduct
any such tax obligations from any payment of any kind otherwise due to a
Participant.

     (f)  AMENDMENT OF AWARD. The Board may amend, modify or terminate any
outstanding Award, including but not limited to, substituting therefor another
Award of the same or a different type and changing the date of exercise or
realization, provided that the Participant's consent to such action shall be
required unless the Board determines that the action, taking into account any
related action, would not materially and adversely affect the Participant.
Without intending to limit the generality of the preceding sentence, the Board
may, without amending the Plan, modify Awards granted to Participants who are
foreign nationals or employed outside the United States to reorganize
differences in laws, rules, regulations or customers of such foreign
jurisdiction with respect to tax, securities, currency, employee benefits or
other matters.

     (g)  CONDITIONS ON DELIVERY OF STOCK. The Company will not be obligated to
deliver any shares of Common Stock pursuant to the Plan or to remove
restrictions from shares previously delivered under the Plan until (i) all
conditions of the Award have been met or

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removed to the satisfaction of the Company, (ii) in the opinion of the Company's
counsel, all other legal matters in connection with the issuance and delivery of
such shares have been satisfied, including any applicable securities laws and
any applicable stock exchange or stock market rules and regulations, and (iii)
the Participant has executed and delivered to the Company such representations
or agreements as the Company may consider appropriate to satisfy the
requirements of any applicable laws, rules or regulations.

     (h)  ACCELERATION. The Board may at any time provide that any Options shall
become immediately exercisable in full or in part, that any Restricted Stock
Awards shall be free of restrictions in full or in part or that any other Awards
may become exercisable in full or in part or free of some or all restrictions or
conditions, or otherwise realizable in full or in part, as the case may be.

10.  MISCELLANEOUS

     (a)  NO RIGHT TO EMPLOYMENT OR OTHER STATUS. No person shall have any claim
or right to be granted an Award, and the grant of an Award shall not be
construed as giving a Participant the right to continued employment or any other
relationship with the Company. The Company expressly reserves the right at any
time to dismiss or otherwise terminate its relationship with a Participant free
from any liability or claim under the Plan, except as expressly provided in the
applicable Award.

     (b)  NO RIGHTS AS STOCKHOLDER. Subject to the provisions of the applicable
Award, no Participant or Designated Beneficiary shall have any rights as a
stockholder with respect to any shares of Common Stock to be distributed with
respect to an Award until becoming the record holder of such shares.
Notwithstanding the foregoing, in the event the Company effects a split of the
Common Stock by means of a stock dividend and the exercise price of and the
number of shares subject to such Option are adjusted as of the date of the
distribution of the dividend (rather than as of the record date for such
dividend), then an optionee who exercises an Option between the record date and
the distribution date for such stock dividend shall be entitled to receive, on
the distribution date, the stock dividend with respect to the shares of Common
Stock acquired upon such Option exercise, notwithstanding the fact that such
shares were not outstanding as of the close of business on the record date for
such stock dividend.

     (c)  EFFECTIVE DATE AND TERM OF PLAN. The Plan is effective as of December
9, 1998, the date on which it was adopted by the Board (the "Effective Date").
No Awards shall be granted under the Plan after the completion of ten years from
the Effective Date, but Awards previously granted may extend beyond that date.

     (d)  AMENDMENT OF PLAN. The Board may amend, suspend or terminate the Plan
or any portion thereof at any time.

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     (e)  GOVERNING LAW. The provisions of the Plan and all Awards made
hereunder shall be governed by and interpreted in accordance with the laws of
the State of Delaware, without regard to any applicable conflicts of law.

                                        Adopted by the Board of Directors on
                                        December 9, 1998

                                        Amended and restated by the Board of
                                        Directors on February 8, 2000

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                                RSA SECURITY INC.

                                 AMENDMENT NO. 1
                                       TO
                              AMENDED AND RESTATED
                 1998 NON-OFFICER EMPLOYEE STOCK INCENTIVE PLAN

         The RSA Security Inc. Amended and Restated 1998 Non-Officer Employee
Stock Incentive Plan (the "Plan") is hereby amended as set forth below:

               1.   Section 4 of the Plan is hereby amended by deleting the
                    first sentence thereof and substituting the following
                    therefor:

                    "Subject to adjustment under Section 8, Awards may be made
                    under the Plan for up to 5,064,731 shares of common stock,
                    $.01 par value per share, of the Company (the "Common
                    Stock")."

               2.   In all other respects, the Plan shall remain in full force
                    and effect.

                                        Adopted by the Board of Directors on
                                        April 12, 2000

<PAGE>

                                RSA SECURITY INC.

                                 AMENDMENT NO. 2
                                       TO
                              AMENDED AND RESTATED
                 1998 NON-OFFICER EMPLOYEE STOCK INCENTIVE PLAN

     The RSA Security Inc. Amended and Restated 1998 Non-Officer Employee Stock
Incentive Plan, as amended (the "Plan"), is hereby amended as set forth below:

               1.   Section 4 of the Plan is hereby amended by deleting the
                    first sentence thereof and substituting the following
                    therefor:

                    "Subject to adjustment under Section 8, Awards may be made
                    under the Plan for up to 6,921,581 shares of common stock,
                    $.01 par value per share, of the Company (the "Common
                    Stock")."

               2.   In all other respects, the Plan shall remain in full force
                    and effect.

                                        Adopted by the Board of Directors on
                                        May 17, 2000

<PAGE>

                                RSA SECURITY INC.

                                 AMENDMENT NO. 3
                                       TO
                              AMENDED AND RESTATED
                 1998 NON-OFFICER EMPLOYEE STOCK INCENTIVE PLAN

     The RSA Security Inc. Amended and Restated 1998 Non-Officer Employee Stock
Incentive Plan, as amended (the "Plan"), is hereby amended as set forth below:

               1.   Section 4 of the Plan is hereby amended by deleting the
                    first sentence thereof and substituting the following
                    therefor:

                    "Subject to adjustment under Section 8, Awards may be made
                    under the Plan for up to 8,021,581 shares of common stock,
                    $.01 par value per share, of the Company (the "Common
                    Stock")."

               2.   In all other respects, the Plan shall remain in full force
                    and effect.

                                        Adopted by the Board of Directors on
                                        July 12, 2000

<PAGE>

                                RSA SECURITY INC.

                                 AMENDMENT NO. 4
                                       TO
                              AMENDED AND RESTATED
                 1998 NON-OFFICER EMPLOYEE STOCK INCENTIVE PLAN

     The RSA Security Inc. Amended and Restated 1998 Non-Officer Employee Stock
Incentive Plan, as amended (the "Plan"), is hereby amended as set forth below:

               1.   Section 4 of the Plan is hereby amended by deleting the
                    first sentence thereof and substituting the following
                    therefor:

                    "Subject to adjustment under Section 8, Awards may be made
                    under the Plan for up to 8,571,581 shares of common stock,
                    $.01 par value per share, of the Company (the "Common
                    Stock")."

               2.   In all other respects, the Plan shall remain in full force
                    and effect.

                                        Adopted by the Board of Directors on
                                        November 30, 2000

<PAGE>

                                RSA SECURITY INC.

                                 AMENDMENT NO. 5
                                       TO
                              AMENDED AND RESTATED
                 1998 NON-OFFICER EMPLOYEE STOCK INCENTIVE PLAN

     The RSA Security Inc. Amended and Restated 1998 Non-Officer Employee Stock
Incentive Plan, as amended (the "Plan"), is hereby amended as set forth below:

               1.   Section 4 of the Plan is hereby amended by deleting the
                    first sentence thereof and substituting the following
                    therefor:

                    "Subject to adjustment under Section 8, Awards may be made
                    under the Plan for up to 9,571,581 shares of common stock,
                    $.01 par value per share, of the Company (the "Common
                    Stock")."

               2.   In all other respects, the Plan shall remain in full force
                    and effect.

                                        Adopted by the Board of Directors on
                                        January 17, 2001

<PAGE>

                                RSA SECURITY INC.

                                 AMENDMENT NO. 6
                                       TO
                              AMENDED AND RESTATED
                 1998 NON-OFFICER EMPLOYEE STOCK INCENTIVE PLAN

     The RSA Security Inc. Amended and Restated 1998 Non-Officer Employee Stock
Incentive Plan, as amended (the "Plan"), is hereby amended as set forth below:

               1.   Section 4 of the Plan is hereby amended by deleting the
                    first sentence thereof and substituting the following
                    therefor:

                    "Subject to adjustment under Section 8, Awards may be made
                    under the Plan for up to 13,375,176 shares of common stock,
                    $.01 par value per share, of the Company (the "Common
                    Stock")."

               2.   In all other respects, the Plan shall remain in full force
                    and effect.

                                        Adopted by the Board of Directors on
                                        March 8, 2001

<PAGE>

                                RSA SECURITY INC.

                                 AMENDMENT NO. 7
                                       TO
                              AMENDED AND RESTATED
                 1998 NON-OFFICER EMPLOYEE STOCK INCENTIVE PLAN

     The RSA Security Inc. Amended and Restated 1998 Non-Officer Employee Stock
Incentive Plan, as amended (the "Plan"), is hereby amended as set forth below:

               1.   Section 4 of the Plan is hereby amended by deleting the
                    first sentence thereof and substituting the following
                    therefor:

                    "Subject to adjustment under Section 8, Awards may be made
                    under the Plan for up to 21,062,764 shares (after giving
                    effect to the Company's three-for-two stock split effected
                    as a dividend on the Common Stock in March 2001) of the
                    Company's common stock, $.01 par value per share (the
                    "Common Stock")."

               2.   In all other respects, the Plan shall remain in full force
                    and effect.

                                        Adopted by the Board of Directors on
                                        December 5, 2001<PAGE>

                                                                   EXHIBIT 10.9

                           THIRD AMENDED AND RESTATED
                              EMPLOYMENT AGREEMENT

       THIS THIRD AMENDED AND RESTATED EMPLOYMENT AGREEMENT (the "AGREEMENT") is
made as of the 27th day of December, 2001 (the "AGREEMENT DATE"), by and between
RSA Security Inc., a Delaware corporation (the "EMPLOYER"), and Charles R.
Stuckey, Jr. (the "EMPLOYEE").

       WHEREAS, the Employer and the Employee are parties to a Second Amended
and Restated Employment Agreement, dated as of April 1, 2000 (the "2000
AGREEMENT");

       WHEREAS, the Employer and the Employee desire to (a) have the Employee
continue in his role as Chairman of the Employer's Board of Directors (the
"BOARD OF DIRECTORS"), (b) provide the Employee with a period of Reduced
Employment Status (as defined in Section 10) as an employee of the Employer, and
(c) amend and restate the 2000 Agreement to reflect the Employee's role as
Chairman of the Board of Directors and his obligations as an employee while on
Reduced Employment Status, all for the periods, and on the terms and conditions,
set forth herein;

       NOW, THEREFORE, in consideration of the foregoing and of the mutual
covenants and conditions herein contained, the parties hereby agree that the
2000 Agreement is amended and restated in its entirety to read as follows:

Section 1.  EMPLOYMENT.

       The Employer hereby agrees to continue to employ the Employee, and the
Employee accepts such continued employment, according to the terms and
conditions set forth in this Agreement.

Section 2.  TERM.

       The initial term of this Agreement shall be for a period commencing on
the Agreement Date and continuing through December 31, 2002 (the "INITIAL
Term"). Thereafter and unless previously so elected by the Employee pursuant to
Section 10, this Agreement shall be automatically renewed for a period of
Reduced Employment Status, commencing on January 1, 2003 and continuing through
June 30, 2005 (the "REDUCED EMPLOYMENT STATUS TERM"), on the terms and
conditions indicated below. Notwithstanding the foregoing, the Employment Period
(as defined below) may be terminated at any time upon the occurrence of any one
of the following events: (i) the Employee's decision to resign pursuant to
Section 9 of this Agreement, (ii) the Employer's decision to terminate the
Employee, either "for cause" or other than "for cause" pursuant to Section 9, or
(iii) the parties' agreement in writing to terminate the Agreement. The period
of time between the commencement and termination of the Employee's employment,
from the Agreement Date and continuing through June 30, 2005, shall be referred
to herein as the "EMPLOYMENT PERIOD."

<PAGE>

Section 3.    POSITION AND SERVICES.

       (a)    CHAIRMAN OF THE BOARD. From the Agreement Date and continuing
              through the Employer's 2002 Annual Meeting of Stockholders, the
              Employee shall occupy the position of Chairman of the Board of
              Directors, subject to the terms of the Employer's Third Restated
              Certificate of Incorporation, as amended from time to time. Any
              subsequent substantial diminution in the position, office or
              duties of the Employee (other than any such diminution resulting
              from either a Reduced Employment Status or a Change in Control (as
              such term is defined in Section 13)) or a material breach by the
              Employer of its obligations under this Agreement shall be deemed a
              termination of this Agreement other than "for cause" as defined in
              Section 9. The Employee will report directly to the Board of
              Directors, and shall have such duties and responsibilities as are
              set forth in the Employer's Amended and Restated By-Laws, as
              amended from time to time, which duties and responsibilities shall
              include, but not be limited to, performing such duties and
              responsibilities as are assigned to him by the Board of Directors.

       (b)    MEMBER OF THE BOARD. From the date of the Employer's 2002 Annual
              Meeting of Stockholders and continuing through the Employer's 2004
              Annual Meeting of Stockholders, the Employee shall serve as a
              member of the Board of Directors, subject to the terms of the
              Employer's Third Restated Certificate of Incorporation, as amended
              from time to time. Any subsequent substantial diminution in the
              position, office or duties of the Employee (other than any such
              diminution resulting from either a Reduced Employment Status or a
              Change in Control (as such term is defined in Section 13)) or a
              material breach by the Employer of its obligations under this
              Agreement shall be deemed a termination of this Agreement other
              than "for cause" as defined in Section 9. The Employee will report
              directly to the Board of Directors, and shall have such duties and
              responsibilities as are set forth in the Employer's Amended and
              Restated By-Laws, as amended from time to time, which duties shall
              include, but not be limited to, performing such duties and
              responsibilities as are assigned to him by the Board of Directors.

       (c)    FULL-TIME EMPLOYEE. Except as otherwise provided in Section 10 and
              except as otherwise agreed between the Board of Directors and the
              Employee, during the Initial Term the Employee is expected to be
              available for full-time employment by the Employer, to exert his
              best efforts to the performance of his duties hereunder, and to
              serve the Employer diligently and to the best of his ability;
              provided, that, except to the extent set forth in the Prior
              Agreements (as such term is defined in Section 8), nothing set
              forth herein shall prohibit the Employee from engaging in other
              activities to the extent that such activities do not impair the
              ability of the Employee to perform his duties and obligations
              under this Agreement.

                                      -2-
<PAGE>

       (d)    REDUCED-TIME EMPLOYEE. During any period of Reduced Employment
              Status, the Employee will be a reduced-time employee pursuant to
              the terms and conditions set forth in Section 10. While a
              reduced-time employee, the Employee will be expected to exert his
              best efforts in the performance of his duties and to serve the
              Employer diligently and to the best of his ability. The Employee
              may not serve as a full-time employee, as defined in the Internal
              Revenue Code of 1986, as amended (the "CODE"), of any other person
              or entity during any period of Reduced Employment Status.

Section 4.    COMPENSATION.

         The Employer shall pay the Employee the following compensation during
the Employment Period:

       (a)    INITIAL TERM. During the Initial Term, the Employer shall pay the
              Employee a base salary at an annual rate of not less than
              $286,200, subject to deductions for social security, state payroll
              and unemployment and all other legally required or authorized
              deductions and withholding (the "INITIAL TERM SALARY").
              Notwithstanding the foregoing, if during the Initial Term the
              Employer reinstates, in whole or in part, the executive salary
              reductions made by the Employer in 2001, then the Initial Term
              Salary shall be adjusted to give effect to such reinstatement at
              the same time and on the same basis as the Employer provides such
              reinstated salary to its other executive officers. The Employee's
              Initial Term Salary shall be payable at the same time and basis as
              the Employer pays its payroll in general. The Employee shall have
              the right, by written notice to the Employer within ninety (90)
              days following any decrease in the Employee's Initial Term Salary
              at any time during the Initial Term, to treat such reduction as a
              termination of this Agreement other than "for cause" as defined in
              Section 9.

       (b)    REDUCED EMPLOYMENT STATUS TERM. During the Reduced Employment
              Status Term, the Employer shall pay the Employee a Reduced
              Employment Status salary at an annual rate of $75,000, subject to
              deductions for social security, state payroll and unemployment and
              all other legally required or authorized deductions and
              withholding (the "REDUCED EMPLOYMENT STATUS SALARY"). The
              Employee's Reduced Employment Status Salary shall be payable at
              the same time and basis as the Employer pays its payroll in
              general.

Section 5.    [Intentionally Omitted.]

                                      -3-
<PAGE>

Section 6.    DEATH OR DISABILITY DURING EMPLOYMENT.

         If the Employee is prevented from performing his duties hereunder by
reason of illness or injury for a period of (a) four or more consecutive months
or (b) six months during any 12-month period as determined by a recognized
physician chosen by the Employer and acceptable to the Employee (the applicable
date when either of such disabling events shall occur being hereinafter referred
to as the "EFFECTIVE DATE OF DISABILITY"), or if the Employee dies during the
Employment Period, the Employer shall pay to the Employee, if the Employee is
disabled, or to the Employee's spouse (the "SPOUSE"), the Executors under the
Employee's Last Will and Testament duly admitted to probate within one year of
his death or the Employee's heir at law, if the Employee dies, in addition to
such amounts, if any, as may be payable pursuant to any short- or long-term
disability or life insurance policies then in effect and maintained by the
Employer with respect to the Employee ("DISABILITY POLICIES"), the compensation
which would otherwise be payable to the Employee under this Agreement through
the end of the month in which the Employee's Effective Date of Disability or
death occurs, or, in the case of disability (and assuming any Disability
Policies are currently in effect) such later date as the Employee would, if
eligible, be entitled to receive benefits under such Disability Policies.

Section 7.    BENEFITS; EXPENSES.

       (a)    The Employee shall be entitled to receive the same standard
              employment benefits as other executives of the Employer receive.
              The Employee shall be entitled to fully participate in all of the
              Employer's future employee benefit programs in accordance with
              their then-existing terms. The Employee shall be entitled to
              reimbursement for all approved reasonable travel and other
              business expenses incurred by the Employee in connection with his
              services to the Employer pursuant to the terms of this Agreement.
              All business expenses for which the Employee seeks reimbursement
              from the Employer shall be adequately documented by the Employee
              in accordance with the Employer's procedures covering expense
              reimbursement and in compliance with the regulations of the U.S.
              Internal Revenue Service.

       (b)    The Employee shall be entitled to five weeks of vacation during
              each year of the Employment Period. The Employee may accrue and
              carry forward vacation time to future years; provided, however,
              that in no event may the Employee carry forward into any year in
              excess of five weeks of accrued paid vacation time.

Section 8.    CONFIDENTIALITY; NON-COMPETITION.

       The parties acknowledge that the Employee has previously entered into a
Non-Competition Agreement and a Nondisclosure and Developments Agreement, each
initially dated as of February 13, 1987 and amended and restated as of November
1, 1997 (together, as amended and restated, the "PRIOR AGREEMENTS"), in
connection with the Employee's employment by the Employer. The Prior Agreements
are each incorporated herein by this reference and made a part hereof as if set
forth

                                      -4-
<PAGE>

herein in their entirety. The parties hereby agree that the Non-Disclosure
and Non-Competition Covenant, dated as of February 13, 1987, by and between the
Employer and the Employee was terminated and of no further force and effect as
of November 1, 1997.

Section 9.    TERMINATION.

       This Agreement does not grant the Employee any right or entitlement to be
retained by the Employer, and shall not affect or prejudice the Employer's right
to discharge the Employee in accordance herewith. The Employee may terminate
this Agreement at any time during the Employment Period upon sixty (60) days
prior written notice to the Employer. The Employer may terminate this Agreement
"for cause" (as defined below) at any time upon thirty (30) days prior written
notice to the Employee. The Employee shall, during such 30-day period, be given
an opportunity to defend the basis or facts giving rise to the notice. The
Employer may terminate this Agreement other than "for cause" at any time during
the Employment Period upon ninety (90) days prior written notice to the
Employee.

         If the Employee is terminated either "for cause" or for reasons other
than "for cause" during the Employment Period, the Employee shall be entitled to
the following severance payments:

       (a)    OTHER THAN FOR CAUSE. If termination occurs by the Employer other
              than "for cause" during the Employment Period, then the following
              severance payments (less applicable deductions for social
              security, payroll and other applicable taxes) and related
              arrangements will be made:

              (i)    cash payments at the Employee's current monthly Initial
                     Term Salary at the time of termination (less applicable
                     deductions) for a period equal to the lesser of (x) 12
                     months, commencing with the month immediately succeeding
                     the month during which the 90-day period after the giving
                     of notice shall have ended (the "EFFECTIVE DATE OF
                     TERMINATION"), or (y) the remainder of the Initial Term;
                     provided, however, that no cash severance payments shall be
                     payable pursuant to this subparagraph (i) if the
                     termination occurs during the Reduced Employment Status
                     Term;

              (ii)   normal employee medical and insurance benefits will be
                     continued on an insured basis for the Employee and for the
                     Spouse at the Effective Date of Termination until the later
                     to occur of: (x) the Employee's death, or (y) the Spouse's
                     death, provided that medical benefits provided to the
                     Employee and the Spouse pursuant to this subparagraph (ii)
                     may be reduced from time to time to the extent that medical
                     benefits are provided through Medicare or through any other
                     employer following the Effective Date of Termination;

                                      -5-
<PAGE>

              (iii)  to the extent that all or any stock options granted to the
                     Employee shall not have vested as of the Effective Date of
                     Termination, then all such stock options shall
                     automatically vest;

              (iv)   the Employer shall pay to the Employee, in a single lump
                     sum payment within 30 days following the Effective Date of
                     Termination, an amount equal to a pro rata portion of the
                     Employee's current monthly Initial Term Salary at the time
                     of termination (less applicable deductions) with respect to
                     the month in which the Effective Date of Termination occurs
                     based upon the number of days elapsed in such month prior
                     to the Effective Date of Termination; provided, however,
                     that no such lump sum payment pursuant to this subparagraph
                     (iv) shall be payable if the termination occurs during the
                     Reduced Employment Status Term;

              (v)    the Employer shall reimburse the Employee for any
                     reasonable legal expenses incurred by the Employee in
                     connection with the termination of the Agreement (excluding
                     any expenses incurred in contesting any such termination);
                     and

              (vi)   the Employer and the Employee may, but shall not be
                     obligated to, negotiate in good faith for the retention of
                     the Employee by the Employer as a consultant for the
                     one-year period following the Effective Date of Termination
                     pursuant to a Consulting Agreement to be entered into by
                     the Employer and the Employee.

       (b)    FOR CAUSE. If the Employee is terminated by the Employer "for
cause," the Employer shall provide the Employee with normal employee medical and
insurance benefits for a period of six months following the Effective Date of
Termination. In the event of a termination for cause, the Employee shall not be
entitled to any salary, severance or other payments or any benefits of any kind
beyond the Effective Date of Termination. Termination "for cause" as used
herein, and as determined by the Board of Directors, shall include only the
following behavior of the Employee: (1) any act committed by the Employee which
shall represent (x) a breach in any material respect of any of the terms hereof
or (y) a material breach of fiduciary duty to the Employer and/or all of its
stockholders under the laws of the State of Delaware; (2) willful failure to
carry out reasonable assigned duties; (3) gross negligence, consisting of wanton
and reckless acts or omissions in the performance of the Employee's duties to
the material detriment of the Employer; (4) addiction to drugs or chronic
alcoholism which impairs the Employee's ability to carry out his obligations
under this Agreement; or (5) any conviction of the Employee of a felony which is
subject to a jail sentence of at least three months; provided, that in the case
of a termination for cause pursuant to clause (1), (2) or (3) of this paragraph
(b), the Employee shall be provided with not less than 30 days written notice
thereof from the Board of Directors or the

                                      -6-
<PAGE>
                  Compensation Committee of the Board of Directors and an
                  opportunity to cure such event to the reasonable satisfaction
                  of the Board of Directors.

         (c)      VOLUNTARY RESIGNATION. If the Employee voluntarily resigns
                  during the Employment Period, then the following severance
                  payments (less applicable deductions for social security,
                  payroll and other applicable taxes) and the related
                  arrangements will be made:

                  (i)      normal employee medical and insurance benefits will
                           be continued on an insured basis for the Employee and
                           for the Spouse until the latter to occur of: (x) the
                           Employee's death, or (y) the Spouse's death, provided
                           that medical benefits provided to the Employee and
                           the Spouse pursuant to this subparagraph (i) may be
                           reduced from time to time to the extent that medical
                           benefits are provided through Medicare or through any
                           other employer following the Effective Date of
                           Termination;

                  (ii)     the Employer shall pay to the Employee, in a single
                           lump sum payment within 30 days following the
                           Effective Date of Termination, an amount equal to a
                           pro rata portion of the Employee's current monthly
                           Initial Term Salary or Reduced Employment Status
                           Salary, as the case may be, at the time of
                           termination (less applicable deductions) with respect
                           to the month in which the Effective Date of
                           Termination occurs based upon the number of days
                           elapsed in such month prior to the Effective Date of
                           Termination; and

                  (iii)    if the termination occurs during the Reduced
                           Employment Status Term pursuant to Section 10 while
                           the Employee is still serving as a member of the
                           Board of Directors, then the Employee shall
                           thereafter be entitled to such cash compensation, if
                           any, as the Employer generally provides to its
                           non-employee members of the Board of Directors until
                           the Employee ceases to serve as such a member.

Section 10.   REDUCED EMPLOYMENT STATUS.

       Commencing on January 1, 2003 and continuing through June 30, 2005, the
Employee shall, and at any time during the Initial Term and upon ninety (90)
days prior written notice to the Employer, the Employee may in his sole
discretion elect to, continue his employment with the Employer in a reduced
employment status with, among other factors, reduced time commitment and
compensation (the "REDUCED EMPLOYMENT STATUS"), to continue until June 30, 2005.

       Under Reduced Employment Status, the Employee shall be employed by the
Employer as (a) a member of the Board of Directors until the Employer's 2004
Annual Meeting of Stockholders, and (b) as an Executive Advisor and, in that
capacity, shall be available at the Employer's request to advise management and
perform such similar services as may be reasonably requested by the

                                      -7-
<PAGE>

Employer, for a minimum of five hours per month, at the Employer's premises and
under the Employer's supervision and control; provided, however, that if the
Employee is not reelected to serve as a member of the Board of Directors at any
time during the Employee's Reduced Employment Status, then the Employee shall
retain such title and provide such services as mutually agreed upon by the
Employer and the Employee; it being further understood that the Employee's
employment during any period of Reduced Employment Status shall not, (i) without
the Employee's consent, require more than 20 hours per month and (ii) without
the Employer's consent, be less than five hours per month. For any required
hours beyond this stated range, the Employee's compensation shall be at a rate
to be agreed upon by the Employee and the Employer.

       During any period of Reduced Employment Status, the Employee shall be
paid the Reduced Employment Status Salary pursuant to Section 4(b) and shall
continue to receive the medical and insurance benefits contemplated by Section
9(c)(i). In addition, any and all unvested options granted to the Employee shall
continue to vest as provided under their original terms and any and all vested
options shall continue to be exercisable as provided under their original terms.
If the Employee continues to serve as a member of the Board of Directors, then
the Employee shall be eligible during any period of Reduced Employment Status
for such stock option grants, if any, as the Employer generally provides to its
members of the Board of Directors pursuant to the Employer's 1994 Director Stock
Option Plan, as amended, until the Employee ceases to serve as such a member. If
the Employee is terminated during any period of Reduced Employment Status while
he serves as a member of the Board of Directors, then the Employee shall
thereafter be entitled to such cash compensation, if any, as the Employer
generally provides to its non-employee members of the Board of Directors until
the Employee ceases to serve as such a member.

Section 11.   BREACH OR VIOLATION OF AGREEMENT.

       Any controversy or claim arising out of, or relating to, this Agreement,
or the breach thereof, shall be settled by arbitration in accordance with the
Commercial Arbitration Rules of the American Arbitration Association, and
judgment upon the award rendered may be entered in any court having jurisdiction
thereof. Notwithstanding the foregoing, the parties agree that a breach or
violation of this Agreement will result in immediate and irreparable injury and
harm to the other party, who shall have the right of an injunction, specific
performance or other equitable relief to prevent the violation of the
obligations hereunder. In addition, the prevailing party in any arbitration or
litigation relating to the interpretation or enforcement of this Agreement shall
be entitled to reimbursement of all reasonable costs and expenses (including
without limitation fees and expenses of counsel) incurred in connection
therewith.

                                      -8-
<PAGE>

Section 12.   NOTICES.

       Any notice required to be given pursuant to the provisions of this
Agreement shall be in writing and, if mailed, sent by registered or certified
mail, postage prepaid, with a copy delivered by an overnight courier service of
recognized standing, to the party named at the address set forth below, or at
such other address as each party may hereafter designate in writing to the other
party:

                  Employer:     RSA Security Inc.
                                36 Crosby Drive
                                Bedford, MA  01730
                                Attn: Secretary

                  cc:           Hale and Dorr LLP
                                60 State Street
                                Boston, MA  02109
                                Attn: Hal J. Leibowitz, Esq.

                  Employee:     Charles R. Stuckey, Jr.
                                121 Woodbine Road
                                Carlisle, MA  01741

       Any such notices shall be deemed to have been delivered when served
personally, or 48 hours after being mailed in the manner specified above.

Section 13.   CHANGE IN CONTROL EVENT.

       (a)    If a Change in Control (as such term is defined below) shall have
              occurred, the successor entity or party of such Change in Control
              shall immediately assume all of the Employer's obligations under
              this Agreement.

       (b)    In addition, all of the stock options granted to the Employee
              which shall not have vested or which shall still remain
              exercisable as of the effective date of the Change in Control
              shall immediately thereupon automatically vest and be free from
              repurchase.

       (c)    For purposes of this Agreement, a "CHANGE IN CONTROL" shall be
              deemed to have taken place if:

              (i)    there shall be consummated any consolidation or merger of
                     the Employer in which the Employer is not the continuing or
                     surviving corporation or pursuant to which shares of the
                     Employer's capital stock are converted into cash,
                     securities or other property, other than a consolidation or
                     merger of the Employer in which each holder of the
                     Employer's capital stock immediately prior to the
                     consolidation or merger has upon consummation of the

                                      -9-
<PAGE>

                     consolidation or merger the same proportionate ownership of
                     each class or series of capital stock of the surviving
                     corporation as such holder had of each class or series of
                     the Employer's capital stock immediately prior to the
                     consolidation or merger, or any sale, lease, exchange or
                     other transfer (in one transaction or a series of
                     transactions contemplated or arranged by any party as a
                     single plan) of all or substantially all of the assets of
                     the Employer; or

              (ii)   any person (as such term is used in Sections 13(d) and
                     14(d)(2) of the Securities Exchange Act of 1934, as amended
                     (the "EXCHANGE ACT")) shall after the Agreement Date become
                     the beneficial owner (as defined in Rules 13(d)(3) and
                     13(d)(5) under the Exchange Act), directly or indirectly,
                     of securities of the Employer representing more than 50% of
                     the voting power of all then outstanding securities of the
                     Employer having the right under ordinary circumstances to
                     vote in an election of the Board of Directors (for purposes
                     of this clause (ii), any securities of the Employer that
                     any such person has the right to acquire pursuant to any
                     agreement, or upon exercise of conversion rights, warrants
                     or options, or otherwise, shall be deemed beneficially
                     owned by such person).

Section 14.   EXERCISE OF STOCK OPTIONS.

       (a)    Subject to the provisions of Section 13, upon the termination of
              the Employment Period, the Employee shall have the following
              periods during which to exercise all then vested stock options
              having a grant date on or before November 1, 1997:

              (i)    if the Employee voluntarily resigns, the Employee shall
                     have 60 days from the date of resignation during which to
                     exercise such vested options; and

              (ii)   if there is a termination other than "for cause" and other
                     than due to the occurrence of any of the events referred to
                     in Section 6, then the Employee shall have six months from
                     such date during which to exercise such vested options.

       (b)    Subject to the provisions of Section 13, upon the termination of
              the Employment Period, the Employee shall have the following
              periods during which to exercise all then vested stock options
              having a grant date after November 1, 1997:

              (i)    if the Employee voluntarily resigns, the Employee shall
                     have 12 months from the date of resignation during which to
                     exercise such vested options; and

              (ii)   if there is a termination other than "for cause" and other
                     than due to the occurrence of any of the events referred to
                     in Section 6, then the Employee

                                      -10-
<PAGE>

                     shall have 12 months from the date of such termination
                     during which to exercise such vested options.

       (c)    Upon a termination of the Employment Period "for cause," all stock
              options held by the Employee shall terminate automatically upon
              the Effective Date of Termination.

       (d)    Upon a termination of the Employment Period as a result of any of
              the events referred to in Section 6, the period of exercise of all
              or any portion of the Employee's then vested stock options shall
              be 12 months from the Effective Date of Disability or death.

Section 15.   LIMITATIONS ON PARACHUTE PAYMENTS.

       (a)    In the event that the Employer undergoes a "Change in Ownership or
              Control" (as defined below), a portion of any "Contingent
              Compensation Payments" (as defined below) that the Employee would
              otherwise be entitled to receive shall be eliminated to the extent
              necessary to eliminate any "excess parachute payments" (as defined
              in Section 280G(b)(1) of the Code) for the Employee. For purposes
              of this Section 15, the Contingent Compensation Payments so
              eliminated shall be referred to as the "ELIMINATED PAYMENTS" and
              the aggregate amount (determined in accordance with Proposed
              Treasury Regulation Section 1.280G-1, Q/A-30 or successor
              provision) of the Contingent Compensation Payments so eliminated
              shall be referred to as the "ELIMINATED AMOUNT." Notwithstanding
              the foregoing, no such reduction in payments shall occur if the
              excess of (A) 110% of the Eliminated Amount (computed without
              regard to this sentence) over (B) the aggregate present value
              (determined in accordance with Proposed Treasury Regulation
              Section 1.280G-1, Q/A-31, and Q/A-32 or successor provisions) of
              the amount of any additional taxes that would be incurred by the
              Employee if the Eliminated Payments (determined without regard to
              this sentence) were paid to him (including, state and federal
              income taxes on the Eliminated Payments, the excise tax imposed by
              Section 4999 of the Code payable with respect to all of the
              Contingent Compensation Payments, and any withholding taxes) is
              greater than zero. For purpose of the preceding sentence, any
              federal or state income tax that would be attributable to the
              receipt of the Eliminated Payments shall be computed by
              multiplying the amount of the Eliminated Payment by the maximum
              combined federal and state income tax rate provided by law;
              provided, however, that if the Employee so notifies the Employer
              within 90 days following the timely filing of all relevant tax
              returns for the Employee for the year or other taxable period in
              which the Eliminated Payments would have been made, the Eliminated
              Payments shall be recomputed based upon all of the Employee's
              actual tax circumstances. If, as a result of such recomputation,
              there are no Eliminated Payments, the Employee shall become
              entitled to receive Contingent Compensation Payments previously
              treated as Eliminated Payments within ten days of the delivery of
              the aforementioned notice together with interest thereon computed
              at the prime rate announced from time

                                      -11-
<PAGE>

              to time by the Wall Street Journal compounded monthly from the
              date that such payments originally would have been made.

       (b)    For purposes of this Section 15, the following terms shall have
              the meaning given them in this subsection (b):

              (i)    "CHANGE IN OWNERSHIP OR CONTROL" shall mean a change in the
                     ownership or effective control of the Employer or in the
                     ownership of a substantial portion of the assets of the
                     Employer determined in accordance with Section 280G(b)(2)
                     of the Code.

              (ii)   "CONTINGENT COMPENSATION PAYMENT" shall mean any payment
                     (or benefit) in the nature of compensation that is made or
                     supplied to a "disqualified individual" (as defined in
                     Section 280G(c) of the Code) and that is contingent (within
                     the meaning of Section 280G(b)(2)(A)(i) of the Code) on a
                     Change in Ownership or Control of the Employer.

       (c)    The amount of any payments or other benefits otherwise due to the
              Employee following a Change in Ownership or Control that could
              reasonably be characterized as Contingent Compensation Payments
              (as determined by the Employer) shall not be made until 30 days
              after the date on which they would otherwise have been due (the
              "EXTENDED DUE DATE"). Within 15 days of the date on which such
              payments or benefits would have originally been due, the Employer
              shall determine and notify the Employee (with reasonable detail
              regarding the basis for its conclusions) (i) whether some or all
              of such payments and benefits constitute Contingent Compensation
              Payments and (ii) the amount of any Eliminated Amount. On or prior
              to the Extended Due Date, the Employee shall notify the Employer
              either (A) that he agrees with the Employer's determination
              pursuant to the preceding sentence, in which case he shall
              indicate, if applicable, the Contingent Compensation Payments that
              will be treated as Eliminated Payments or (B) that he disagrees
              with such determination, in which case he shall indicate those
              payments that should be characterized as Contingent Compensation
              Payments, the amount of any Eliminated Amount and, if applicable,
              the Contingent Compensation Payments that will be treated as
              Eliminated Payments. The amount and characterization of any item
              in the notice from the Employee shall be final; provided, however,
              that in the event that the Employee fails to notify the Employer
              pursuant to the preceding sentence on or before the Extended Due
              Date, the Employer's initial determination shall be final and the
              Contingent Compensation Payments that will be treated as
              Eliminated Payments shall be determined by the Employer in its
              absolute discretion. In no event shall the Employer be liable to
              the Employee as a result of any factual or legal determination
              made by it pursuant to this subsection (c) or for any information
              supplied by it to the Employee or his advisors.

                                      -12-
<PAGE>

       (d)    The provisions of this Section 15 are intended to apply to any and
              all payments or benefits available to the Employee under this
              Agreement.

Section 16.   LEGAL EXPENSES.

       The Employer shall reimburse the Employee for any reasonable legal
expenses incurred by the Employee in connection with the preparation and
negotiation of this Agreement and any amendments hereto.

Section 17.   ENTIRE AGREEMENT.

       (a)    CHANGE, MODIFICATION, WAIVER. No change or modification of this
              Agreement shall be valid unless it is in writing and signed by
              each of the parties hereto. No waiver of any provision of this
              Agreement shall be valid unless it is in writing and signed by the
              party against whom the waiver is sought to be enforced. The
              failure of a party to insist upon strict performance of any
              provision of this Agreement in any one or more instances shall not
              be construed as a waiver or relinquishment of the right to insist
              upon strict compliance with such provision in the future.

       (b)    INTEGRATION OF ALL AGREEMENTS. This Agreement, together with the
              Prior Agreements, constitutes the entire Agreement between the
              parties and is intended to be an integration of all agreements
              between the parties with respect to the Employee's service with
              the Employer. Subject to Section 13(b), any and all prior
              agreements between the Employee and the Employer with respect to
              the subject matter hereof (other than the Prior Agreements) are
              hereby revoked.

       (c)    SEVERABILITY OF PROVISIONS. If for any reason any provision of
              this Agreement should be declared void or invalid, such
              declaration shall not affect the validity of the rest of this
              Agreement, which shall remain in force as if executed with the
              void or invalid provision eliminated. Each of the Prior Agreements
              shall survive any termination of this Agreement in accordance with
              its terms.

Section 18.   BINDING EFFECT.

       This Agreement shall be binding upon all parties hereto and their heirs,
successors and assigns. This Agreement shall be binding upon any successor
entity to the Employer, including without limitation any successor by merger,
consolidation or sale of assets, and shall be assignable by the Employer to any
entity controlled by or under common control with the Employer.

Section 19.   GOVERNING LAW.

       This Agreement shall be governed by and construed in accordance with the
internal laws of The Commonwealth of Massachusetts, without regard to conflicts
of laws principles.

                                      -13-
<PAGE>

Section 20.   MISCELLANEOUS.

       (a)    FORM. As employed in this Agreement, the singular form shall
              include, if appropriate, the plural.

       (b)    HEADINGS. The headings employed in this Agreement are solely for
              the convenience and reference of the parties and are not intended
              to be descriptive of the entire contents of any paragraph and
              shall not limit or otherwise affect any of terms, provisions or
              construction thereof.

       (c)    COUNTERPARTS. This Agreement may be executed in counterparts, each
              of which shall be deemed an original, but all of which together
              shall constitute one and the same instrument.

            [The remainder of this page is intentionally left blank.]

                                      -14-
<PAGE>

       IN WITNESS WHEREOF, this Agreement is executed as of the date first above
written.

                                                EMPLOYER:

                                                RSA SECURITY INC.

                                                /s/ Joseph B. Lassiter, III
                                                --------------------------------
                                                Joseph B. Lassiter, III
                                                Director and Chairman of the
                                                Compensation Committee of the
                                                Board of Directors

                                                EMPLOYEE:

                                                /s/ Charles R. Stuckey, Jr.
                                                --------------------------------
                                                Charles R. Stuckey, Jr.

                                      -15-

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