Fair Isaac's Decision Optimizer 5,7 Accelerates Development of Optimized Decision Strategies

(Minneapolis, Minnesota, USA) - Fair Isaac Corporation (NYSE: FIC), the leading provider of analytics and decision management technology, today announced the release and immediate availability of Decision Optimizer version 5.7, the preeminent tool for optimizing decision strategies amid operational complexities, resource constraints and market uncertainties. Enhancements in Decision Optimizer 5,7 streamline the validation and tuning of decision models that are used to drive the optimization process, enabling companies to create optimized strategies much more quickly than previously possible.

"Competitive and economic pressures require businesses to deploy optimal business strategies into their production systems with unprecedented speed," said Carole-Ann Matignon, vice president of Decision Management Tools at Fair Isaac. "This new version of Decision Optimizer makes this possible by reducing the time it takes to validate and tune the decision models used in the optimization process. And as strategies are developed, compared and selected for use, they can be quickly implemented within Fair Isaac Blaze Advisor business rules management system or other decision management applications such as Fair Isaac TRIAD and Capstone."

Decision Optimizer 5,7 provides a new scenario type and supporting reports for validating decision model results, along with improved tracing capabilities to assist faster debugging of the underlying components. New modeling enhancements allow more flexible criteria within decision tables, and enable users to add custom functions seamlessly for use within equation models. In addition, more flexible options have been added to specify how segmentation is applied during optimization.

Decision Optimizer is a core component of Fair Isaac's Decision Management suite of solutions and technologies that enable organizations to automate, improve and connect decisions across their business. The market-proven technology is currently in use in more than 90 projects at more than 50 financial institutions throughout the world, helping them optimize business results in customer acquisition, origination, account management, retention and fraud referrals.

About Fair Isaac
Fair Isaac Corporation (NYSE:FIC) transforms business by making every decision count. Fair Isaac's Decision Management solutions combine trusted advice, world-class analytics and innovative applications to give organizations the power to automate, improve and connect decisions across their business. Clients in 80 countries work with Fair Isaac to increase customer loyalty and profitability, cut fraud losses, manage credit risk, meet regulatory and competitive demands, and rapidly build market share. Fair Isaac also helps millions of individuals manage their credit health through the www.myFICO.com website.

Fair Isaac Statement Concerning Forward-Looking Information
Except for historical information contained herein, the statements contained in this press release that relate to Fair Isaac, including statements regarding its Blaze Advisor^® business rules management system, Decision Optimizer solution, TRIAD^® adaptive control system and Capstone^® Decision Manager, are forward-looking statements within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements are subject to risks and uncertainties that may cause actual results to differ materially, including the success of the Company's Decision Management strategy, its ability to recruit and retain key technical and managerial personnel, the maintenance of its existing relationships and ability to create new relationships with customers and key alliance partners, its ability to continue to develop new and enhanced products and services, competition, regulatory changes applicable to the use of consumer credit and other data, the possibility that the anticipated benefits of acquisitions, including expected synergies, will not be realized and other risks described from time to time in Fair Isaac's SEC reports, including its Annual Report on Form 10-K/A for the year ended September 30, 2007, and its quarterly report on Form 10-Q for the period ended June 30, 2008. Forward-looking statements should be considered with caution. If any of these risks or uncertainties materializes or any of these assumptions proves incorrect, Fair Isaac's results could differ materially from Fair Isaac's expectations in these statements. Fair Isaac disclaims any intent or obligation to update these forward-looking statements.

Fair Isaac, Blaze Advisor, Capstone and TRIAD are registered trademarks or of Fair Isaac Corporation, in the United States and/or in other countries.