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                                                                    EXHIBIT 4.01


                                HNC SOFTWARE INC.

                           1995 EQUITY INCENTIVE PLAN

                             As Adopted May 4, 1995

        As Amended January 11, 1996 (effective as of July 27, 1995), December 6,
1996, November 25, 1997, May 21, 1998, November 20, 1998, March 18, 1999,
November 9, 1999 and March 30, 2000.

        1. PURPOSE. The purpose of this Plan is to provide incentives to
attract, retain and motivate eligible persons whose present and potential
contributions are important to the success of the Company, its Parent,
Subsidiaries and Affiliates, by offering them an opportunity to participate in
the Company's future performance through awards of Options, Restricted Stock and
Stock Bonuses. Capitalized terms not defined in the text are defined in Section
23.

        2. SHARES SUBJECT TO THE PLAN.

            2.1 Number of Shares Available. Subject to Sections 2.2 and 18, the
total number of Shares reserved and available for grant and issuance pursuant to
this Plan will be 9,100,000 Shares plus any Shares that are made available for
grant and issuance under this Plan pursuant to the following sentence. Any
Shares remaining unissued under the 1987 Stock Option Plan adopted by HNC
Software Inc., a California corporation that is the Company's predecessor (the
"PRIOR PLAN") on the Effective Date (as defined below) and any Shares issuable
upon exercise of options granted pursuant to the Prior Plan that expire or
become unexercisable for any reason without having been exercised in full, will
no longer be available for grant and issuance under the Prior Plan, but will
also be available for grant and issuance under this Plan. Subject to Sections
2.2 and 18, Shares that: (a) are subject to issuance upon exercise of an Option
but cease to be subject to such Option for any reason other than exercise of
such Option; (b) are subject to an Award granted hereunder but are forfeited or
are repurchased by the Company at the original issue price; or (c) are subject
to an Award that otherwise terminates without Shares being issued; will again be
available for grant and issuance in connection with future Awards under this
Plan. At all times the Company shall reserve and keep available a sufficient
number of Shares as shall be required to satisfy the requirements of all
outstanding Options granted under this Plan and all other outstanding but
unvested Awards granted under this Plan.

            2.2 Adjustment of Shares. In the event that the number of
outstanding Shares is changed by a stock dividend, recapitalization, stock
split, reverse stock split, subdivision, combination, reclassification or
similar change in the capital structure of the Company without consideration, or
in the event of a change in the corporate structure, capitalization or a
dividend of property affecting the value of the Company's Shares, then
appropriate adjustments may be made by the Board in (a) the number of Shares
reserved for issuance under this Plan, (b) the Exercise Prices of and number of
Shares subject to outstanding Options, and (c) the number of Shares subject to
other outstanding Awards, subject to any required action by the stockholders of
the Company and compliance with applicable securities


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laws; provided, however, that fractions of a Share will not be issued but will
either be replaced by a cash payment equal to the Fair Market Value of such
fraction of a Share or will be rounded up to the nearest whole Share, as
determined by the Committee.

        3. ELIGIBILITY. ISOs (as defined in Section 5 below) may be granted only
to employees (including officers and directors who are also employees) of the
Company or of a Parent or Subsidiary of the Company. All other Awards may be
granted to employees, officers, directors, consultants, independent contractors
and advisors of the Company or any Parent, Subsidiary or Affiliate of the
Company; provided such consultants, contractors and advisors render bona fide
services not in connection with the offer and sale of securities in a
capital-raising transaction. No person will be eligible to receive more than
500,000 Shares in any calendar year under this Plan pursuant to the grant of
Awards hereunder, other than new employees of the Company or of a Parent,
Subsidiary or Affiliate of the Company (including new employees who are also
officers and directors of the Company or any Parent, Subsidiary or Affiliate of
the Company) who are eligible to receive up to a maximum of 700,000 Shares in
the calendar year in which they commence their employment. A person may be
granted more than one Award under this Plan.

        4. ADMINISTRATION.

            4.1 Committee Authority. This Plan will be administered by the
Committee or by the Board acting as the Committee. Subject to the general
purposes, terms and conditions of this Plan, and to the direction of the Board,
the Committee will have full power to implement and carry out this Plan. Without
limitation, the Committee will have the authority to:

        (a)    construe and interpret this Plan, any Award Agreement and any
               other agreement or document executed pursuant to this Plan;

        (b)    prescribe, amend and rescind rules and regulations relating to
               this Plan;

        (c)    select persons to receive Awards;

        (d)    determine the form and terms of Awards;

        (e)    determine the number of Shares or other consideration subject to
               Awards;

        (f)    determine whether Awards will be granted singly, in combination
               with, in tandem with, in replacement of, or as alternatives to,
               other Awards under this Plan or any other incentive or
               compensation plan of the Company or any Parent, Subsidiary or
               Affiliate of the Company;

        (g)    grant waivers of Plan or Award conditions;

        (h)    determine the vesting, exercisability and payment of Awards;

        (i)    correct any defect, supply any omission or reconcile any
               inconsistency in this Plan, any Award or any Award Agreement;


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        (j)    determine whether an Award has been earned; and

        (k)    make all other determinations necessary or advisable for the
               administration of this Plan.

            4.2 Committee Discretion. Any determination made by the Committee
with respect to any Award will be made in its sole discretion at the time of
grant of the Award or, unless in contravention of any express term of this Plan
or Award, at any later time, and such determination will be final and binding on
the Company and on all persons having an interest in any Award under this Plan.
The Committee may delegate to one or more officers of the Company the authority
to grant an Award under this Plan to Participants who are not Insiders of the
Company.

            4.3 Exchange Act Requirements. If two or more members of the Board
are Outside Directors, the Committee will be comprised of at least two (2)
members of the Board, all of whom are Outside Directors and Disinterested
Persons. During all times that the Company is subject to Section 16 of the
Exchange Act, the Company will take appropriate steps to comply with the
disinterested administration requirements of Section 16(b) of the Exchange Act,
which will consist of the appointment by the Board of a Committee consisting of
not less than two (2) members of the Board, each of whom is a Disinterested
Person.

        5. OPTIONS. The Committee may grant Options to eligible persons and will
determine whether such Options will be Incentive Stock Options within the
meaning of the Code ("ISOS") or Nonqualified Stock Options ("NQSOS"), the number
of Shares subject to the Option, the Exercise Price of the Option, the period
during which the Option may be exercised, and all other terms and conditions of
the Option, subject to the following:

            5.1 Form of Option Grant. Each Option granted under this Plan will
be evidenced by an Award Agreement which will expressly identify the Option as
an ISO or an NQSO ("STOCK OPTION AGREEMENT"), and will be in such form and
contain such provisions (which need not be the same for each Participant) as the
Committee may from time to time approve, and which will comply with and be
subject to the terms and conditions of this Plan.

            5.2 Date of Grant. The date of grant of an Option will be the date
on which the Committee makes the determination to grant such Option, unless
otherwise specified by the Committee. The Stock Option Agreement and a copy of
this Plan will be delivered to the Participant within a reasonable time after
the granting of the Option.

            5.3 Exercise Period. Options will be exercisable within the times or
upon the events determined by the Committee as set forth in the Stock Option
Agreement governing such Option; provided, however, that no Option will be
exercisable after the expiration of ten (10) years from the date the Option is
granted; and provided further that no ISO granted to a person who directly or by
attribution owns more than ten percent (10%) of the total combined voting power
of all classes of stock of the Company or of any Parent or Subsidiary of the
Company ("TEN PERCENT STOCKHOLDER") will be exercisable after the expiration of
five (5) years from the date the ISO is granted. The Committee also may provide
for the exercise of



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Options to become exercisable at one time or from time to time, periodically or
otherwise, in such number of Shares or percentage of Shares as the Committee
determines.

            5.4 Exercise Price. The Exercise Price of an Option will be
determined by the Committee when the Option is granted and may be not less than
100% of the Fair Market Value of the Shares on the date of grant; provided that:
the Exercise Price of any ISO granted to a Ten Percent Shareholder will not be
less than 110% of the Fair Market Value of the Shares on the date of grant.
Payment for the Shares purchased may be made in accordance with Section 8 of
this Plan.

            5.5 Method of Exercise. Options may be exercised only by delivery to
the Company of a written stock option exercise agreement (the "EXERCISE
AGREEMENT") in a form approved by the Committee (which need not be the same for
each Participant), stating the number of Shares being purchased, the
restrictions imposed on the Shares purchased under such Exercise Agreement, if
any, and such representations and agreements regarding Participant's investment
intent and access to information and other matters, if any, as may be required
or desirable by the Company to comply with applicable securities laws, together
with payment in full of the Exercise Price for the number of Shares being
purchased.

            5.6 Termination. Notwithstanding the exercise periods set forth in
the Stock Option Agreement, exercise of an Option will always be subject to the
following:

        (a)    If the Participant is Terminated for any reason except death or
               Disability, then the Participant may exercise such Participant's
               Options only to the extent that such Options would have been
               exercisable upon the Termination Date no later than three (3)
               months after the Termination Date (or such shorter or longer time
               period not exceeding five (5) years as may be determined by the
               Committee, with any exercise beyond three (3) months after the
               Termination Date deemed to be an NQSO), but in any event, no
               later than the expiration date of the Options.

        (b)    If the Participant is Terminated because of Participant's death
               or Disability (or the Participant dies within three (3) months
               after a Termination other than because of Participant's death or
               disability), then Participant's Options may be exercised only to
               the extent that such Options would have been exercisable by
               Participant on the Termination Date and must be exercised by
               Participant (or Participant's legal representative or authorized
               assignee) no later than twelve (12) months after the Termination
               Date (or such shorter or longer time period not exceeding five
               (5) years as may be determined by the Committee, with any such
               exercise beyond (a) three (3) months after the Termination Date
               when the Termination is for any reason other than the
               Participant's death or Disability, or (b) twelve (12) months
               after the Termination Date when the Termination is for
               Participant's death or Disability, deemed to be an NQSO), but in
               any event no later than the expiration date of the Options.


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            5.7 Limitations on Exercise. The Committee may specify a reasonable
minimum number of Shares that may be purchased on any exercise of an Option,
provided that such minimum number will not prevent Participant from exercising
the Option for the full number of Shares for which it is then exercisable.

            5.8 Limitations on ISOs. The aggregate Fair Market Value (determined
as of the date of grant) of Shares with respect to which ISOs are exercisable
for the first time by a Participant during any calendar year (under this Plan or
under any other incentive stock option plan of the Company or any Affiliate,
Parent or Subsidiary of the Company) will not exceed $100,000. If the Fair
Market Value of Shares on the date of grant with respect to which ISOs are
exercisable for the first time by a Participant during any calendar year exceeds
$100,000, then the Options for the first $100,000 worth of Shares to become
exercisable in such calendar year will be ISOs and the Options for the amount in
excess of $100,000 that become exercisable in that calendar year will be NQSOs.
In the event that the Code or the regulations promulgated thereunder are amended
after the Effective Date of this Plan to provide for a different limit on the
Fair Market Value of Shares permitted to be subject to ISOs, such different
limit will be automatically incorporated herein and will apply to any Options
granted after the effective date of such amendment.

            5.9 Modification, Extension or Renewal. The Committee may modify,
extend or renew outstanding Options and authorize the grant of new Options in
substitution therefor, provided that any such action may not, without the
written consent of a Participant, impair any of such Participant's rights under
any Option previously granted. Any outstanding ISO that is modified, extended,
renewed or otherwise altered will be treated in accordance with Section 424(h)
of the Code. The Committee may reduce the Exercise Price of outstanding Options
without the consent of Participants affected by a written notice to them;
provided, however, that the Exercise Price may not be reduced below the minimum
Exercise Price that would be permitted under Section 5.4 of this Plan for
Options granted on the date the action is taken to reduce the Exercise Price.

            5.10 No Disqualification. Notwithstanding any other provision in
this Plan, no term of this Plan relating to ISOs will be interpreted, amended or
altered, nor will any discretion or authority granted under this Plan be
exercised, so as to disqualify this Plan under Section 422 of the Code or,
without the consent of the Participant affected, to disqualify any ISO under
Section 422 of the Code.

        6. RESTRICTED STOCK. A Restricted Stock Award is an offer by the Company
to sell to an eligible person Shares that are subject to restrictions. The
Committee will determine to whom an offer will be made, the number of Shares the
person may purchase, the price to be paid (the "PURCHASE PRICE"), the
restrictions to which the Shares will be subject, and all other terms and
conditions of the Restricted Stock Award, subject to the following:

            6.1 Form of Restricted Stock Award. All purchases under a Restricted
Stock Award made pursuant to this Plan will be evidenced by an Award Agreement
("RESTRICTED STOCK PURCHASE AGREEMENT") that will be in such form (which need
not be the same for each Participant) as the Committee will from time to time
approve, and will comply with and be subject to the terms and conditions of this
Plan. The offer of Restricted Stock will be accepted



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by the Participant's execution and delivery of the Restricted Stock Purchase
Agreement and full payment for the Shares to the Company within thirty (30) days
from the date the Restricted Stock Purchase Agreement is delivered to the
person. If such person does not execute and deliver the Restricted Stock
Purchase Agreement along with full payment for the Shares to the Company within
thirty (30) days, then the offer will terminate, unless otherwise determined by
the Committee.

            6.2 Purchase Price. The Purchase Price of Shares sold pursuant to a
Restricted Stock Award will be determined by the Committee and will be at least
100% of the Fair Market Value of the Shares on the date the Restricted Stock
Award is granted. Payment of the Purchase Price may be made in accordance with
Section 8 of this Plan.

            6.3 Restrictions. Restricted Stock Awards will be subject to such
restrictions (if any) as the Committee may impose. The Committee may provide for
the lapse of such restrictions in installments and may accelerate or waive such
restrictions, in whole or part, based on length of service, performance or such
other factors or criteria as the Committee may determine.

        7. STOCK BONUSES.

            7.1 Awards of Stock Bonuses. A Stock Bonus is an award of Shares
(which may consist of Restricted Stock) for services rendered to the Company or
any Parent, Subsidiary or Affiliate of the Company. A Stock Bonus may be awarded
for past services already rendered to the Company, or any Parent, Subsidiary or
Affiliate of the Company (provided that the Participant pays the Company the par
value of the Shares awarded by such Stock Bonus in cash) pursuant to an Award
Agreement (the "STOCK BONUS AGREEMENT") that will be in such form (which need
not be the same for each Participant) as the Committee will from time to time
approve, and will comply with and be subject to the terms and conditions of this
Plan. A Stock Bonus may be awarded upon satisfaction of such performance goals
as are set out in advance in the Participant's individual Award Agreement (the
"PERFORMANCE STOCK BONUS AGREEMENT") that will be in such form (which need not
be the same for each Participant) as the Committee will from time to time
approve, and will comply with and be subject to the terms and conditions of this
Plan. Stock Bonuses may vary from Participant to Participant and between groups
of Participants, and may be based upon the achievement of the Company, Parent,
Subsidiary or Affiliate and/or individual performance factors or upon such other
criteria as the Committee may determine.

            7.2 Terms of Stock Bonuses. The Committee will determine the number
of Shares to be awarded to the Participant and whether such Shares will be
Restricted Stock. If the Stock Bonus is being earned upon the satisfaction of
performance goals pursuant to a Performance Stock Bonus Agreement, then the
Committee will determine: (a) the nature, length and starting date of any period
during which performance is to be measured (the "PERFORMANCE PERIOD") for each
Stock Bonus; (b) the performance goals and criteria to be used to measure the
performance, if any; (c) the number of Shares that may be awarded to the
Participant; and (d) the extent to which such Stock Bonuses have been earned.
Performance Periods may overlap and Participants may participate simultaneously
with respect to Stock Bonuses that are subject to different Performance Periods
and different performance goals and


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other criteria. The number of Shares may be fixed or may vary in accordance with
such performance goals and criteria as may be determined by the Committee. The
Committee may adjust the performance goals applicable to the Stock Bonuses to
take into account changes in law and accounting or tax rules and to make such
adjustments as the Committee deems necessary or appropriate to reflect the
impact of extraordinary or unusual items, events or circumstances to avoid
windfalls or hardships.

            7.3 Form of Payment. The earned portion of a Stock Bonus may be paid
currently or on a deferred basis with such interest or dividend equivalent, if
any, as the Committee may determine. Payment may be made in the form of cash,
whole Shares, including Restricted Stock, or a combination thereof, either in a
lump sum payment or in installments, all as the Committee will determine.

            7.4 Termination During Performance Period. If a Participant is
Terminated during a Performance Period for any reason, then such Participant
will be entitled to payment (whether in Shares, cash or otherwise) with respect
to the Stock Bonus only to the extent earned as of the date of Termination in
accordance with the Performance Stock Bonus Agreement, unless the Committee will
determine otherwise.

        8. PAYMENT FOR SHARE PURCHASES.

            8.1 Payment. Payment for Shares purchased pursuant to this Plan may
be made in cash (by check) or, where expressly approved for the Participant by
the Committee and where permitted by law:

        (a)    by cancellation of indebtedness of the Company to the
               Participant;

        (b)    by surrender of shares that either: (1) have been owned by
               Participant for more than six (6) months and have been paid for
               within the meaning of SEC Rule 144 (and, if such shares were
               purchased from the Company by use of a promissory note, such note
               has been fully paid with respect to such shares); or (2) were
               obtained by Participant in the public market;

        (c)    by tender of a full recourse promissory note having such terms as
               may be approved by the Committee and bearing interest at a rate
               sufficient to avoid imputation of income under Sections 483 and
               1274 of the Code; provided, however, that Participants who are
               not employees or directors of the Company will not be entitled to
               purchase Shares with a promissory note unless the note is
               adequately secured by collateral other than the Shares; provided,
               further, that the portion of the Purchase Price equal to the par
               value of the Shares, if any, must be paid in cash;

        (d)    by waiver of compensation due or accrued to the Participant for
               services rendered; provided, further, that the portion of the
               Purchase Price equal to the par value of the Shares, if any, must
               be paid in cash;


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        (e)    with respect only to purchases upon exercise of an Option, and
               provided that a public market for the Company's stock exists:

               (1)    through a "same day sale" commitment from the Participant
                      and a broker-dealer that is a member of the National
                      Association of Securities Dealers (an "NASD DEALER")
                      whereby the Participant irrevocably elects to exercise the
                      Option and to sell a portion of the Shares so purchased to
                      pay for the Exercise Price, and whereby the NASD Dealer
                      irrevocably commits upon receipt of such Shares to forward
                      the Exercise Price directly to the Company; or

               (2)    through a "margin" commitment from the Participant and a
                      NASD Dealer whereby the Participant irrevocably elects to
                      exercise the Option and to pledge the Shares so purchased
                      to the NASD Dealer in a margin account as security for a
                      loan from the NASD Dealer in the amount of the Exercise
                      Price, and whereby the NASD Dealer irrevocably commits
                      upon receipt of such Shares to forward the Exercise Price
                      directly to the Company; or

        (f)    by any combination of the foregoing.

            8.2 Loan Guarantees. The Committee may help the Participant pay for
Shares purchased under this Plan by authorizing a guarantee by the Company of a
third-party loan to the Participant.


        9. WITHHOLDING TAXES.

            9.1 Withholding Generally. Whenever Shares are to be issued in
satisfaction of Awards granted under this Plan, the Company may require the
Participant to remit to the Company an amount sufficient to satisfy federal,
state and local withholding tax requirements prior to the delivery of any
certificate or certificates for such Shares. Whenever, under this Plan, payments
in satisfaction of Awards are to be made in cash, such payment will be net of an
amount sufficient to satisfy federal, state, and local withholding tax
requirements.

            9.2 Stock Withholding. When, under applicable tax laws, a
Participant incurs tax liability in connection with the exercise or vesting of
any Award that is subject to tax withholding and the Participant is obligated to
pay the Company the amount required to be withheld, the Committee may allow the
Participant to satisfy the minimum withholding tax obligation by electing to
have the Company withhold from the Shares to be issued that number of Shares
having a Fair Market Value equal to the minimum amount required to be withheld,
determined on the date that the amount of tax to be withheld is to be determined
(the "TAX DATE"). All elections by a Participant to have Shares withheld for
this purpose will be made in writing in a form acceptable to the Committee and
will be subject to the following restrictions:

        (a)    the election must be made on or prior to the applicable Tax Date;


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        (b)    once made, then except as provided below, the election will be
               irrevocable as to the particular Shares as to which the election
               is made;

        (c)    all elections will be subject to the consent or disapproval of
               the Committee;

        (d)    if the Participant is an Insider and if the Company is subject to
               Section 16(b) of the Exchange Act: (1) the election may not be
               made within six (6) months of the date of grant of the Award,
               except as otherwise permitted by SEC Rule 16b-3(e) under the
               Exchange Act, and (2) either (A) the election to use stock
               withholding must be irrevocably made at least six (6) months
               prior to the Tax Date (although such election may be revoked at
               any time at least six (6) months prior to the Tax Date) or (B)
               the exercise of the Option or election to use stock withholding
               must be made in the ten (10) day period beginning on the third
               day following the release of the Company's quarterly or annual
               summary statement of sales or earnings; and

        (e)    in the event that the Tax Date is deferred until six (6) months
               after the delivery of Shares under Section 83(b) of the Code, the
               Participant will receive the full number of Shares with respect
               to which the exercise occurs, but such Participant will be
               unconditionally obligated to tender back to the Company the
               proper number of Shares on the Tax Date.

        10. PRIVILEGES OF STOCK OWNERSHIP.

            10.1 Voting and Dividends. No Participant will have any of the
rights of a stockholder with respect to any Shares until the Shares are issued
to the Participant. After Shares are issued to the Participant, the Participant
will be a stockholder and have all the rights of a stockholder with respect to
such Shares, including the right to vote and receive all dividends or other
distributions made or paid with respect to such Shares; provided, that if such
Shares are Restricted Stock, then any new, additional or different securities
the Participant may become entitled to receive with respect to such Shares by
virtue of a stock dividend, stock split or any other change in the corporate or
capital structure of the Company will be subject to the same restrictions as the
Restricted Stock; provided, further, that the Participant will have no right to
retain such stock dividends or stock distributions with respect to Shares that
are repurchased at the Participant's original Purchase Price pursuant to Section
12.

            10.2 Financial Statements. The Company will provide financial
statements to each Participant prior to such Participant's purchase of Shares
under this Plan, and to each Participant annually during the period such
Participant has Awards outstanding; provided, however, the Company will not be
required to provide such financial statements to Participants whose services in
connection with the Company assure them access to equivalent information.

        11. TRANSFERABILITY. Awards granted under this Plan, and any interest
therein, will not be transferable or assignable by Participant, and may not be
made subject to execution, attachment or similar process, otherwise than by will
or by the laws of descent and



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distribution or as consistent with the specific Plan and Award Agreement
provisions relating thereto. During the lifetime of the Participant an Award
will be exercisable only by the Participant, and any elections with respect to
an Award, may be made only by the Participant.

        12. RESTRICTIONS ON SHARES. At the discretion of the Committee, the
Company may reserve to itself and/or its assignee(s) in the Award Agreement (a)
a right of first refusal to purchase all Shares that a Participant (or a
subsequent transferee) may propose to transfer to a third party, and/or (b) a
right to repurchase a portion of or all Shares held by a Participant following
such Participant's Termination at any time within ninety (90) days after the
later of Participant's Termination Date and the date Participant purchases
Shares under this Plan, for cash and/or cancellation of purchase money
indebtedness, at: (A) with respect to Shares that are "Vested" (as defined in
the Award Agreement), the higher of: (l) Participant's original Purchase Price,
or (2) the Fair Market Value of such Shares on Participant's Termination Date,
provided, that such right of repurchase (i) must be exercised as to all such
"Vested" Shares unless a Participant consents to the Company's repurchase of
only a portion of such "Vested" Shares and (ii) terminates when the Company's
securities become publicly traded; or (B) with respect to Shares that are not
"Vested" (as defined in the Award Agreement), at the Participant's original
Purchase Price, provided, that the right to repurchase at the original Purchase
Price lapses at the rate of at least 20% per year over five (5) years from the
date the Shares were purchased (or from the date of grant of options in the case
of Shares obtained pursuant to a Stock Option Agreement and Stock Option
Exercise Agreement), and if the right to repurchase is assignable, the assignee
must pay the Company, upon assignment of the right to repurchase, cash equal to
the excess of the Fair Market Value of the Shares over the original Purchase
Price.

        13. CERTIFICATES. All certificates for Shares or other securities
delivered under this Plan will be subject to such stock transfer orders, legends
and other restrictions as the Committee may deem necessary or advisable,
including restrictions under any applicable federal, state or foreign securities
law, or any rules, regulations and other requirements of the SEC or any stock
exchange or automated quotation system upon which the Shares may be listed or
quoted.

        14. ESCROW; PLEDGE OF SHARES. To enforce any restrictions on a
Participant's Shares, the Committee may require the Participant to deposit all
certificates representing Shares, together with stock powers or other
instruments of transfer approved by the Committee, appropriately endorsed in
blank, with the Company or an agent designated by the Company to hold in escrow
until such restrictions have lapsed or terminated, and the Committee may cause a
legend or legends referencing such restrictions to be placed on the
certificates. Any Participant who is permitted to execute a promissory note as
partial or full consideration for the purchase of Shares under this Plan will be
required to pledge and deposit with the Company all or part of the Shares so
purchased as collateral to secure the payment of Participant's obligation to the
Company under the promissory note; provided, however, that the Committee may
require or accept other or additional forms of collateral to secure the payment
of such obligation and, in any event, the Company will have full recourse
against the Participant under the promissory note notwithstanding any pledge of
the Participant's Shares or other collateral. In connection with any pledge of
the Shares, Participant will be required to execute and deliver a written pledge
agreement in such form as the Committee will from time to time approve. The
Shares purchased with the promissory note may be released from the pledge on a
pro rata basis as the promissory note is paid.


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<PAGE>   11

        15. EXCHANGE AND BUYOUT OF AWARDS. The Committee may, at any time or
from time to time, authorize the Company, with the consent of the respective
Participants, to issue new Awards in exchange for the surrender and cancellation
of any or all outstanding Awards. The Committee may at any time buy from a
Participant an Award previously granted with payment in cash, Shares (including
Restricted Stock) or other consideration, based on such terms and conditions as
the Committee and the Participant may agree.

        16. SECURITIES LAW AND OTHER REGULATORY COMPLIANCE. An Award will not be
effective unless such Award is in compliance with all applicable federal and
state securities laws, rules and regulations of any governmental body, and the
requirements of any stock exchange or automated quotation system upon which the
Shares may then be listed or quoted, as they are in effect on the date of grant
of the Award and also on the date of exercise or other issuance. Notwithstanding
any other provision in this Plan, the Company will have no obligation to issue
or deliver certificates for Shares under this Plan prior to: (a) obtaining any
approvals from governmental agencies that the Company determines are necessary
or advisable; and/or (b) completion of any registration or other qualification
of such Shares under any state or federal law or ruling of any governmental body
that the Company determines to be necessary or advisable. The Company will be
under no obligation to register the Shares with the SEC or to effect compliance
with the registration, qualification or listing requirements of any state
securities laws, stock exchange or automated quotation system, and the Company
will have no liability for any inability or failure to do so.

        17. NO OBLIGATION TO EMPLOY. Nothing in this Plan or any Award granted
under this Plan will confer or be deemed to confer on any Participant any right
to continue in the employ of, or to continue any other relationship with, the
Company or any Parent, Subsidiary or Affiliate of the Company or limit in any
way the right of the Company or any Parent, Subsidiary or Affiliate of the
Company to terminate Participant's employment or other relationship at any time,
with or without cause.

        18. CORPORATE TRANSACTIONS.

            18.1 Assumption or Replacement of Awards by Successor. In the event
of (a) a dissolution or liquidation of the Company, (b) a merger or
consolidation in which the Company is not the surviving corporation (other than
a merger or consolidation with a wholly-owned subsidiary, a reincorporation of
the Company in a different jurisdiction, or other transaction in which there is
no substantial change in the stockholders of the Company or their relative stock
holdings and the Awards granted under this Plan are assumed, converted or
replaced by the successor corporation, which assumption will be binding on all
Participants), (c) a merger in which the Company is the surviving corporation
but after which the stockholders of the Company (other than any stockholder
which merges (or which owns or controls another corporation which merges) with
the Company in such merger) cease to own their shares or other equity interests
in the Company, (d) the sale of substantially all of the assets of the Company,
or (e) any other transaction which qualifies as a "corporate transaction" under
Section 424(a) of the Code wherein the stockholders of the Company give up all
of their equity interest in the Company (except for the acquisition, sale or
transfer of all or substantially all of the outstanding


                                       21
<PAGE>   12

shares of the Company from or by the stockholders of the Company), any or all
outstanding Awards may be assumed, converted or replaced by the successor
corporation (if any), which assumption, conversion or replacement will be
binding on all Participants. In the alternative, the successor corporation may
substitute equivalent Awards or provide substantially similar consideration to
Participants as was provided to stockholders (after taking into account the
existing provisions of the Awards). The successor corporation may also issue, in
place of outstanding Shares of the Company held by the Participant,
substantially similar shares or other property subject to repurchase
restrictions no less favorable to the Participant. In the event such successor
corporation (if any) refuses to assume or substitute Options, as provided above,
pursuant to a transaction described in this Subsection 18.1, such Options will
expire on such transaction at such time and on such conditions as the Board will
determine.

            18.2 Other Treatment of Awards. Subject to any greater rights
granted to Participants under the foregoing provisions of this Section 18, in
the event of the occurrence of any transaction described in Section 18.1, any
outstanding Awards will be treated as provided in the applicable agreement or
plan of merger, consolidation, dissolution, liquidation, sale of assets or other
"corporate transaction."

            18.3 Assumption of Awards by the Company. The Company, from time to
time, also may substitute or assume outstanding awards granted by another
company, whether in connection with an acquisition of such other company or
otherwise, by either; (a) granting an Award under this Plan in substitution of
such other company's award; or (b) assuming such award as if it had been granted
under this Plan if the terms of such assumed award could be applied to an Award
granted under this Plan. Such substitution or assumption will be permissible if
the holder of the substituted or assumed award would have been eligible to be
granted an Award under this Plan if the other company had applied the rules of
this Plan to such grant. In the event the Company assumes an award granted by
another company, the terms and conditions of such award will remain unchanged
(except that the exercise price and the number and nature of Shares issuable
upon exercise of any such option will be adjusted appropriately pursuant to
Section 424(a) of the Code). In the event the Company elects to grant a new
Option rather than assuming an existing option, such new Option may be granted
with a similarly adjusted Exercise Price.

        19. ADOPTION AND STOCKHOLDER APPROVAL. This Plan will become effective
on the date on which the registration statement filed by the Company with the
SEC under the Securities Act registering the initial public offering of the
Company's Common Stock is declared effective by the SEC (the "EFFECTIVE DATE");
provided, however, that if the Effective Date does not occur on or before
December 31, 1995, this Plan will terminate as of December 31, 1995 having never
become effective. This Plan shall be approved by the stockholders of the Company
(excluding Shares issued pursuant to this Plan), consistent with applicable
laws, within twelve (12) months before or after the date this Plan is adopted by
the Board. Upon the Effective Date, the Board may grant Awards pursuant to this
Plan; provided, however, that: (a) no Option may be exercised prior to initial
stockholder approval of this Plan; (b) no Option granted pursuant to an increase
in the number of Shares subject to this Plan approved by the Board will be
exercised prior to the time such increase has been approved by the stockholders
of the Company; and (c) in the event that stockholder approval of such increase
is not obtained within the time period provided herein, all Awards granted
hereunder will be


                                       22
<PAGE>   13

canceled, any Shares issued pursuant to any Award will be canceled, and any
purchase of Shares hereunder will be rescinded. So long as the Company is
subject to Section 16(b) of the Exchange Act, the Company will comply with the
requirements of Rule 16b-3 (or its successor), as amended, with respect to
stockholder approval.

        20. TERM OF PLAN. Unless earlier terminated as provided herein, this
Plan will terminate ten (10) years from the date this Plan is adopted by the
Board or, if earlier, the date of stockholder approval.

        21. AMENDMENT OR TERMINATION OF PLAN. The Board may at any time
terminate or amend this Plan in any respect, including without limitation
amendment of any form of Award Agreement or instrument to be executed pursuant
to this Plan; provided, however, that the Board will not, without the approval
of the stockholders of the Company, amend this Plan in any manner that requires
such stockholder approval pursuant to the Code or the regulations promulgated
thereunder as such provisions apply to ISO plans or (if the Company is subject
to the Exchange Act or Section 16(b) of the Exchange Act) pursuant to the
Exchange Act or Rule 16b-3 (or its successor), as amended, thereunder,
respectively.

        22. NONEXCLUSIVITY OF THE PLAN. Neither the adoption of this Plan by the
Board, the submission of this Plan to the stockholders of the Company for
approval, nor any provision of this Plan will be construed as creating any
limitations on the power of the Board to adopt such additional compensation
arrangements as it may deem desirable, including, without limitation, the
granting of stock options and bonuses otherwise than under this Plan, and such
arrangements may be either generally applicable or applicable only in specific
cases.

        23. DEFINITIONS. As used in this Plan, the following terms will have the
following meanings:

            "AFFILIATE" means any corporation that directly, or indirectly
through one or more intermediaries, controls or is controlled by, or is under
common control with, another corporation, where "control" (including the terms
"controlled by" and "under common control with") means the possession, direct or
indirect, of the power to cause the direction of the management and policies of
the corporation, whether through the ownership of voting securities, by contract
or otherwise.

            "AWARD" means any award under this Plan, including any Option,
Restricted Stock or Stock Bonus.

            "AWARD AGREEMENT" means, with respect to each Award, the signed
written agreement between the Company and the Participant setting forth the
terms and conditions of the Award.

            "BOARD" means the Board of Directors of the Company.

            "CODE" means the Internal Revenue Code of 1986, as amended.


                                       23
<PAGE>   14

            "COMMITTEE" means the committee appointed by the Board to administer
this Plan, or if no such committee is appointed, the Board.

            "COMPANY" means HNC Software Inc., a corporation organized under the
laws of the State of Delaware, or any successor corporation.

            "DISABILITY" means a disability, whether temporary or permanent,
partial or total, within the meaning of Section 22(e)(3) of the Code, as
determined by the Committee.

            "DISINTERESTED PERSON" means a director who has not, during the
period that person is a member of the Committee and for one year prior to
commencing service as a member of the Committee, been granted or awarded equity
securities pursuant to this Plan or any other plan of the Company or any Parent,
Subsidiary or Affiliate of the Company, except in accordance with the
requirements set forth in Rule 16b-3(c)(2)(i) (and any successor regulation
thereto) as promulgated by the SEC under Section 16(b) of the Exchange Act, as
such rule is amended from time to time and as interpreted by the SEC.

            "EXCHANGE ACT" means the Securities Exchange Act of 1934, as
amended.

            "EXERCISE PRICE" means the price at which a holder of an Option may
purchase the Shares issuable upon exercise of the Option.

            "FAIR MARKET VALUE" means, as of any date, the value of a share of
the Company's Common Stock determined as follows:

        (a)    if such Common Stock is then quoted on the Nasdaq National
               Market, its closing price on the Nasdaq National Market on the
               date of determination (if such day is a trading day) as reported
               in The Wall Street Journal, and, if such date of determination is
               not a trading day, then on the last trading day prior to the date
               of determination;

        (b)    if such Common Stock is publicly traded and is then listed on a
               national securities exchange, its closing price on the last
               trading day prior to the date of determination on the principal
               national securities exchange on which the Common Stock is listed
               or admitted to trading as reported in The Wall Street Journal;

        (c)    if such Common Stock is publicly traded but is not quoted on the
               Nasdaq National Market nor listed or admitted to trading on a
               national securities exchange, the average of the closing bid and
               asked prices on the last trading day prior to the date of
               determination as reported in The Wall Street Journal; or

        (d)    if none of the foregoing is applicable, by the Committee in good
               faith.


                                       24
<PAGE>   15


            "INSIDER" means an officer or director of the Company or any other
person whose transactions in the Company's Common Stock are subject to Section
16 of the Exchange Act.

            "OUTSIDE DIRECTOR" means any director who is not; (a) a current
employee of the Company or any Parent, Subsidiary or Affiliate of the Company;
(b) a former employee of the Company or any Parent, Subsidiary or Affiliate of
the Company who is receiving compensation for prior services (other than
benefits under a tax-qualified pension plan); (c) a current or former officer of
the Company or any Parent, Subsidiary or Affiliate of the Company; or (d)
currently receiving compensation for personal services in any capacity, other
than as a director, from the Company or any Parent, Subsidiary or Affiliate of
the Company; provided, however, that at such time as the term "Outside
Director", as used in Section 162(m) of the Code is defined in regulations
promulgated under Section 162(m) of the Code, "Outside Director" will have the
meaning set forth in such regulations, as amended from time to time and as
interpreted by the Internal Revenue Service.

            "OPTION" means an award of an option to purchase Shares pursuant to
Section 5.

            "PARENT" means any corporation (other than the Company) in an
unbroken chain of corporations ending with the Company, if at the time of the
granting of an Award under this Plan, each of such corporations other than the
Company owns stock possessing 50% or more of the total combined voting power of
all classes of stock in one of the other corporations in such chain.

            "PARTICIPANT" means a person who receives an Award under this Plan.

            "PLAN" means this HNC Software Inc. 1995 Equity Incentive Plan, as
amended from time to time.

            "RESTRICTED STOCK AWARD" means an award of Shares pursuant to
Section 6.

            "SEC" means the Securities and Exchange Commission.

            "SECURITIES ACT" means the Securities Act of 1933, as amended.

            "SHARES" means shares of the Company's Common Stock reserved for
issuance under this Plan, as adjusted pursuant to Sections 2 and 18, and any
successor security.

            "STOCK BONUS" means an award of Shares, or cash in lieu of Shares,
pursuant to Section 7.

            "SUBSIDIARY" means any corporation (other than the Company) in an
unbroken chain of corporations beginning with the Company if, at the time of
granting of the Award, each of the corporations other than the last corporation
in the unbroken chain owns stock possessing 50% or more of the total combined
voting power of all classes of stock in one of the other corporations in such
chain.



                                       25
<PAGE>   16

            "TERMINATION" or "TERMINATED" means, for purposes of this Plan with
respect to a Participant, that the Participant has for any reason ceased to
provide services as an employee, director, consultant, independent contractor or
advisor to the Company or a Parent, Subsidiary or Affiliate of the Company,
except in the case of sick leave, military leave, or any other leave of absence
approved by the Committee, provided that such leave is for a period of not more
than ninety (90) days, or reinstatement upon the expiration of such leave is
guaranteed by contract or statute. The Committee will have sole discretion to
determine whether a Participant has ceased to provide services and the effective
date on which the Participant ceased to provide services (the "TERMINATION
DATE").



                                       26