Contacts: Investors & Analysts: Peter L. McCorkell (415)491-5101

           Media: Sondra Harris (415)491-7000
                  e-mail: SondraHarris@fairisaac.com


       Fair, Isaac Announces Larry Rosenberger to Become Head of R&D Unit
                               and Resign as CEO

SAN RAFAEL,  CALIFORNIA--April  8, 1999--Fair,  Isaac and Company,  Incorporated
(NYSE:  FIC)  today  announced  that  Larry E.  Rosenberger  will  resign as the
company's  president and chief executive officer and assume the role of director
of the  company's  Development  Unit which is  responsible  for all research and
development efforts, company-wide. The board of directors has initiated a search
to find a new CEO. Mr.  Rosenberger is a member of the search committee,  and he
will remain CEO until a successor is found.

Chairman  Robert M.  Oliver  said,  "Over the past eight  years Larry has done a
superb job  leading  Fair,  Isaac from $25 million in revenues in 1990 to nearly
$250 million last year.  During that time,  shareholder value has increased even
more,  from a market  capitalization  of just over $35 million to more than $500
million today.  However,  the Board of Directors decided that, in the next phase
of the company's development,  it would benefit from the leadership of a CEO who
has experience with the sort of rapid growth and pervasive  change called for by
the new strategic plan we announced last month.  Research and  development  will
play a pivotal role in our efforts to become a leader in new markets, and we are
delighted that Larry will provide the direction we need in that area."

Mr.  Rosenberger,  who joined Fair, Isaac in 1974, headed the company's research
and development  unit prior to becoming  president and CEO in 1991. He added, "I
feel very good  about  what  Fair,  Isaac has  accomplished  over the last eight
years,  and I remain  committed  to  contributing  to our future  success.  I am
looking  forward to applying  my skills to the  critical  area of  research  and
development and am excited by the challenges that my new role will bring."

Since 1956,  Fair,  Isaac has helped  businesses  maximize the value of data for
strategic decision making.  The Company pioneered the commercial  development of
empirically  derived  predictive  models for the credit industry and popularized
their use in lending decisions.  Today, Fair, Isaac and its subsidiaries provide
data-driven  decision support  solutions to a variety of industries,  worldwide,
including  financial  services,  direct  marketing,  personal  lines  insurance,
retail,  health care,  and  telecommunications.  Primary  areas of focus include
customer and  operational  data management and modeling,  information  analysis,
strategy design, and software.  Headquartered in San Rafael,  California,  Fair,
Isaac  employs  more than 1,500  people and has  offices  throughout  the United
States and Europe as well as in Canada, Mexico, Brazil, South Africa, and Japan.
For the fiscal year ended September 30, 1998, the Company recorded net income of
$24.3 million ($1.68 per share,  diluted) on revenues of $245.5 million. For the
quarter  ended  December 31, 1998,  net income was $7.0 million ($.49 per share,
diluted) on revenues of $68.0 million.

This press release contains certain forward-looking  statements regarding events
and trends that may affect the Company's  future  results.  Such  statements are
subject to risks and uncertainties that could

                                       4




cause the Company's actual results to differ  materially.  Such factors include,
but are not  limited  to, the  Company's  ability to recruit  and  maintain  key
technical  and   managerial   personnel,   the   maintenance   of  its  existing
relationships with key alliance partners, its ability to continue to develop new
and enhanced products and services,  competition,  and market demand. For a more
complete  description  of these and other factors see the  Company's  annual and
quarterly  reports to stockholders  and its annual report on Form 10-K and other
reports filed with the Securities and Exchange Commission.


                                       ###

                                       5