Fair Isaac to Provide Rogers Wireless with Enhanced Roamer Management and Fraud Detection Solution

(Minneapolis, Minnesota, USA) - Fair Isaac Corporation (NYSE:FIC), the leading provider of analytics and decision technology, today announced that Rogers Wireless, Canada's largest wireless voice and data communications service provider, has agreed to continue its successful utilization of Fair Isaac's leading international roamer record exchange system, RoamEx^® roamer data exchanger, with the new Enhanced Roamer Visibility (ERV) feature. ERV will help Rogers Wireless more easily and effectively detect and prevent roaming fraud globally.

Rogers Wireless has been a long-time user of Fair Isaac's RoamEx solution. The new RoamEx ERV feature will help Rogers Wireless monitor the activity of its roaming subscribers outside the RoamEx network in near real time, even when the serving operator network does not participate in the RoamEx exchange network. Rogers Wireless can deploy the system in its home network and detect roaming fraud globally for its more than 5,9 million wireless subscribers, regardless of their roaming destination.

Wireless roaming fraud remains a serious global issue for mobile network service providers. It occurs when a subscriber who does not intend to pay moves from the home operator network to another operator network and takes advantage of the home operator's lack of visibility of subscriber activity. An individual roaming fraud incident can result in a loss of more than US US$ 200.000 within a few days.

"RoamEx offers the only proven method that successfully detects and prevents roaming fraud of all types, regardless of provider network technology, generation or region," said Mike Gandolfo, vice president of Fair Isaac's Global Telecom solutions. "By combining RoamEx with the new ERV feature, operators have a complete roaming fraud prevention solution that is quick and cost-efficient to deploy, effectively addresses the remaining fraud exposure from High Usage Reports and provides global coverage of their roamers."

RoamEx ERV provides the home operator with visibility and fraud analysis of roamer activity in all serving operator networks while minimizing impact on the home network and roaming partners. ERV collects, filters and analyzes SS7 messages, the global standard for telecommunications, for near real-time alarms of roaming fraud.

Fair Isaac RoamEx Roamer Data Exchanger currently handles approximately 95 percent of all roaming call records for the North American wireless industry and helps more than 70 wireless carriers detect and prevent fraud. It processes over 2 billion call detail records every month and supports all common mobile technologies. Fair Isaac provides day-to-day management, monitoring, maintenance and technical support for the RoamEx network, minimizing wireless carriers' resource commitment.

About Fair Isaac
Fair Isaac Corporation (NYSE:FIC) is the preeminent provider of creative analytics that unlock value for people, businesses and industries. The company's predictive modeling, decision analysis, intelligence management, decision management systems and consulting services power billions of mission-critical customer decisions a year. Founded in 1956, Fair Isaac helps thousands of companies in over 60 countries acquire customers more efficiently, increase customer value, reduce fraud and credit losses, lower operating expenses and enter new markets more profitably. Most leading banks and credit card issuers rely on Fair Isaac solutions, as do insurers, retailers, telecommunications providers, healthcare organizations and government agencies. Through the www.myfico.com Web site, consumers use the company's FICO^® scores, the standard measure of credit risk, to manage their financial health.

Statements Regarding 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 RoamEx roamer data exchanger, the benefits to be derived from RoamEx, the timing and benefits of the integration of the service with other products or services and projected sales of the integrated product, 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 any unforeseen technical difficulties related to the implementation, use and functionality of the offering, the risks that customers will not perceive material benefits from the offering, failure of the product to deliver the expected results, the possibility of errors or defects in the offering, regulatory changes applicable to the use of consumer credit and other data, and other risks described from time to time in Fair Isaac's SEC reports, including its Annual Report on Form 10-K for the year ended September 30, 2004 and quarterly report on Form 10-Q for the period ended June 30, 2005. 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.