Carreker Corporation Press April 22, 2003

WELLS FARGO CHOOSES CARREKER IMAGE CAPTURE AND ARCHIVE SOFTWARE

Bank on Path to Full Image Enablement and Truncation at Capture

DALLAS (April 22, 2003) — Carreker Corporation (Nasdaq: CANIE), a leading provider of technology and consulting solutions for the financial industry, announced today that Wells Fargo (NYSE: WFC) has acquired the Carreker suite of image processing archive and capture applications.

The decision signals Wells Fargo’s intention to leverage the value of its investment in image processing by deploying it across the enterprise, including its back office operations.

Joe Ervin, executive vice president, Wholesale Operations, Wells Fargo, said, “Check imaging technology has already enabled us to deliver significant value-add to a broad base of our corporate customers. This latest decision supports Wells Fargo’s commitment to provide similar capabilities and services across our entire customer base and, in the process, drive dramatic new cost efficiencies across the enterprise.”

Mitch Christensen, executive vice president, Payment Strategies, Wells Fargo, added, “Wells Fargo has prioritized image exchange as an opportunity over the next few years to transform a substantial cost component of our operations. This investment in next-generation technology for electronifying the paper flow is prerequisite for a number of significant new efficiencies. Beyond the obvious benefits of exchanging images in lieu of paper, we will be truncating the paper at the earliest point of presentment, detecting fraud earlier in the deposit flow, and image-enabling exceptions and returns.”

John Carreker, president, Global Payments Technology, Carreker Corporation, said, “Wells Fargo recognizes the value of a strategy that accelerates electronification of the entire check workflow. Increasingly, the check will become simply one more instrument for launching an electronic payment transaction, and banks that lead the way on this front will realize significant competitive advantage over the next few years.”

More than 50 percent of U.S. check volume will be archived using Carreker’s image technology, upon full implementation of these systems.

J.D. (Denny) Carreker, chairman and CEO, Carreker Corporation, said, “We consider this decision by Wells Fargo as validation of our strategy to be the premier provider of payments technology and consulting to financial institutions. Most large banks will need to cope well and soon with these pressures on their payments-related profits. We are investing and partnering to make sure we are there with the solutions when they need them.”

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 clients’ revenues and reduce their expenses, while improving security and increasing the value of their customer relationships. Carreker provides products and services to more than 250 clients in the United States, Canada, the United Kingdom, Ireland, continental Europe, Australia, New Zealand, and South Africa. Clients include the full range of community, regional and large banks, among them 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.