DALLAS (May 1, 2002) — Carreker Corporation (NASDAQ: CANI), an international leader in technology and consulting solutions for financial institutions, announced today that Bank of Ireland will be the first Irish-owned bank to use Carreker’s fraud-detection technology solution FraudLink™.

FraudLink uses advanced analytics of check-writing and deposit behavior to identify potentially counterfeit or fraudulent checks at teller stations, in the back office and among deposited items.

Des Crowley, Bank of Ireland’s Chief Executive of Retail Banking & Distribution, said, “Protecting customers’ assets and deposits is at the core of banking excellence. We chose Carreker’s FraudLink because it impacts on the two key areas of fraud protection – the fraud it deters by flagging the right items and the cost it reduces by allocating our resources strictly to suspect situations. This meets our aspirations for the use of technology – to bring our customers better service and to make the bank more competitive on a cost basis.”

Installed at nearly 100 financial institutions in the U.S., Canada, Australia, and the U.K., FraudLink enables banks to expand their fraud mitigation capability. Bank of Ireland intends to set the pace in Ireland for deterring fraud and protecting its customer base. It is the largest financial services provider in the Republic of Ireland and is among the world's top 100 banks in assets.

Said John Carreker, Managing Director of Carreker’s London-based International group, “Fraud is a crime of opportunity; Bank of Ireland is forcing perpetrators to look elsewhere for the opportunity.”

Jodi Pratt, Managing Principal of Carreker’s Risk Solutions group, adds, “That is why we have worked with our banking clients to develop a broad spectrum of fraud prevention solutions - fraud case management, check cross-firing, deposit-related fraud prevention, and positive pay solutions. In fact, in the U.S. and Australia, it is estimated that 90% of checks are inspected by Carreker fraud-mitigation solutions.”

According to John Carreker, banks’ vulnerability to fraud remains high, even though paper check volumes are leveling off. “Paper checks are still disproportionately vulnerable to a variety of fraud perpetrations,” he said. “In addition, change associated with Ireland’s euro conversion is bound to create conditions ripe for opportunists, and the warnings from the Basel Committee on Bank Supervision leave no doubt as to the risk inherent in retail and commercial banking. Vigilance has probably never been more critical or more rewarding.”

About Bank of Ireland
Bank of Ireland Group is a diversified financial services company with assets of €84 billion (September 31, 2001) and some 18,000 employees, principally in Ireland and Great Britain. It is the leading provider of financial services in the Irish market and has substantial business in Great Britain and the United States.

About Carreker Corporation:
Carreker Corporation improves earnings for financial institutions around the world. The Company’s integrated consulting and software solutions are designed to increase our clients’ revenues and reduce expenses, while improving security and increasing the value of their customer relationships. Carreker provides products and services to more than 200 clients in the United States, Canada, the United Kingdom, Ireland, Australia, and South Africa, including more than 75 of the largest 100 banks in the United States. Headquartered in Dallas, Texas since 1978, Carreker Corporation also has offices located around the world including London, Toronto, and Sydney. For more information, visit www.carreker.com <http://www.carreker.com> or phone Hal Denton at 972-340-2537.

Forward Looking Statement - This document contains forward-looking statements based on current expectations that are inherently subject to risks and uncertainties. The words "estimate," "project," "intend," "expect," "believe," "plan" and similar expressions are intended to identify forward-looking statements. The Company's actual results could differ materially from those currently anticipated due to a number of factors, including, but not limited to, changes in the banking industry’s demand for the Company’s solutions, significant customer concentration and the potential loss of a significant customer, variations in operating results, reduction in revenues due to pricing arrangements, the infrequent use of long-term contracts with customers, the focus of the Company's technology and consulting solutions and the chance that they will not be accepted in the marketplace, risks associated with rapid growth in the Company’s business, the inability to attract and retain key personnel, existence of defects or errors in the Company’s software, ability to develop new technologies and services, ability to meet the changing needs of customers, dependence on third-party Internet providers and the Internet, intense competition, risks associated with strategic alliances and acquisitions, inability to protect the Company's proprietary rights, infringement and other claims and related expenses, reliance on third-party licenses, volatility in the Company's stock price, exposure to risks associated with our indebtedness, international operations, reliance on independent contractors, adoption of Financial Accounting Standard No. 142, governmental regulation and legal uncertainties and anti-takeover provisions in the Company's charter documents and under applicable law. These and other factors are set forth in the Company's annual report on Form 10-K filed on April 15, 2002 and in other reports and documents filed by the Company with the Securities and Exchange Commission from time to time.

Hal Denton, Vice President, Marketing
972 340-2537 PH
972 233-7831 FX
Email: hdenton@carreker.com

Terry Gage, Executive Vice President, CFO
972 371-1454 PH
972 458-2567 FX
Email: tgage@carreker.com