Exhibit 99.1

Contact:          Debbie McGowan
                  Fair, Isaac
                  415-492-5309
                  dmcgowan@fairisaac.com

                   Fair, Isaac Adopts Stockholder Rights Plan

SAN RAFAEL, Calif.--August 9, 2001--Fair, Isaac and Company, Incorporated (NYSE:
FIC) today  announced  that its Board of  Directors  has  adopted a  Stockholder
Rights Plan. Under the Rights Plan,  rights will be distributed as a dividend at
the rate of one  right  for each  share of Fair,  Isaac  common  stock,  held by
stockholders of record as of the close of business on August 21, 2001.

The Rights Plan is designed to enable all Fair,  Isaac  stockholders  to realize
the full value of their  investment and to provide for fair and equal  treatment
for all stockholders in the event that an unsolicited attempt is made to acquire
Fair,  Isaac.  The  adoption  of the Rights Plan is intended as a means to guard
against abusive takeover  tactics.  While the Company as a matter of policy does
not comment on the existence or absence of takeover  proposals,  the Stockholder
Rights Plan was adopted only for precautionary purposes to protect the rights of
the stockholders and not in response to any known takeover proposal.

The rights will be  distributed  as a  non-taxable  dividend and will expire ten
years  from  the  date of  adoption  of the  Rights  Plan.  The  rights  will be
exercisable  only if a person  or group  acquires  15  percent  or more of Fair,
Isaac's  common  stock,  subject to certain  exceptions  set forth in the Rights
Plan.  If a person  acquires 15 percent or more of Fair,  Isaac's  common  stock
while the Rights Plan remains in place,  all rights  holders,  except the buyer,
will be entitled to acquire Fair,  Isaac common stock at a discount.  The effect
will be to discourage acquisitions of 15 percent or more of Fair, Isaac's common
stock in the absence of negotiations with the Company's Board of Directors.

The rights will trade with Fair,  Isaac's common stock unless and until they are
separated upon the occurrence of certain future events.  Fair,  Isaac's Board of
Directors  may  terminate the Rights Plan at any time or redeem the rights prior
to the time a person acquires 15 percent or more of Fair,  Isaac's common stock.
Additional details regarding

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the Rights Plan will be  outlined in a summary to be mailed to all  stockholders
following  the record date,  and a copy of the Rights Plan will be filed shortly
with the Securities and Exchange Commission.

About Fair, Isaac

Fair, Isaac and Company is a global provider of customer  analytics and decision
technology.  Widely recognized for its pioneering work in credit scoring,  Fair,
Isaac revolutionized the way lending decisions are made. Today the Company helps
clients in multiple  industries  increase  the value of customer  relationships.
Fair,  Isaac has made the Forbes list of the top 200 U.S. small  companies eight
times in the last nine years.  Headquartered  in San Rafael,  California,  Fair,
Isaac reported revenues of $298 million in fiscal 2000.

For  more  information  about  Fair,  Isaac  and  Company,  Incorporated,  visit
http://www.fairisaac.com.

Except for the historical information contained herein, the matters set forth in
this press  release  are  forward-looking  statements  within the meaning of the
"safe harbor"  provisions  of the Private  Securities  Litigation  Reform Act of
1995. Such statements  include,  without  limitation,  statements  regarding the
anticipated  benefits  and  expected  consequences  of the  Rights  Plan.  These
forward-looking statements are subject to risks and uncertainties that may cause
actual results to differ materially.  For a discussion of factors that may cause
results to differ, see Fair, Isaac's SEC reports, including its Quarterly Report
on Form 10-Q for the quarter  ended March 31, 2001 and its Annual Report on Form
10-K for the year ended  September 30, 2000.  These  forward-looking  statements
speak only as of the date hereof. Fair, Isaac disclaims any intent or obligation
to update these forward-looking statements.

Fair, Isaac is a registered  trademark of Fair, Isaac and Company,  Inc., in the
United States and/or in other countries.

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