Carreker Corporation Press Release - April 29, 2003

CARREKER AND GIESECKE & DEVRIENT ANNOUNCE STRATEGIC ALLIANCE

Companies to Deliver Premium Vault and Cash Management Solutions to Global Financial Industry

DALLAS and MUNICH (April 29, 2003) — Carreker Corporation (Nasdaq: CANIE) and Giesecke & Devrient GmbH (G&D) today announced a strategic alliance to strengthen both companies’ market positions and product offerings in the field of cash automation and inventory management. Carreker, a leading provider of technology and consulting solutions for the financial industry, delivers cutting-edge cash supply chain solutions to financial institutions and service providers on five continents. G&D, a Munich-based security and technology group with 150 years of tradition, is the worldwide leading supplier of banknote processing systems.

According to Steve Reber, president of Giesecke & Devrient America, Inc., “The cash handling management space has never been more active. Banks around the world are increasingly pressured to standardize, automate, and/or outsource components of the cash supply chain to drive efficiencies and reduce expenses. Our alliance with Carreker serves their needs both strategically and from a solutions standpoint.”

Brian Evetts, managing director of Carreker’s Cash & Logistics solutions, said, “How banks manage their cash inventories is greatly affected by the shifting role of many central banks, the trend toward shared services and outsourcing, as well as banks’ strategic choices. Under these circumstances, commercial banks place a great deal of value on providers who bring them best-in-class, affordable cash solutions, and this alliance augments our ability to do so.”

As part of the agreement, Carreker and G&D are consolidating their overlapping cash supply chain solutions. For vault operations, G&D’s Compass^cm will be the companies’ preferred solution. For cash inventory management, Carreker’s iCom™ will be the preferred solution. Both companies will also offer Carreker’s Cash Supply Chain Consulting Services and eiManager™ software, designed to improve ATM management efficiency and availability, rounding out a premier suite of solutions and services for vault, branch, and ATM network optimization. Similarly, they will offer G&D’s currency-processing hardware, which provides automation and efficiencies in centralized cash operations. As part of the agreement, the companies will also collaborate on research and development, as well as potential opportunities in shared services in the cash supply chain.

Hans Wolfgang Kunz, member of the board and group executive of the Giesecke & Devrient Group, said, “By partnering with Carreker, whose cash solutions complement ours, we can deliver a robust solution to banks at a critical time in their decision process. We foresee a common vision for a full suite of world-class technologies and best practices consulting services that improve the overall profitability of our clients’ cash handling operations.”

J.D. (Denny) Carreker, chairman and chief executive officer of Carreker Corporation, said, “Through our affiliation with G&D, a dominant player in cash management and electronic payment technologies, we become the preferred providers in the critical space of overall cash management. This alliance is an international validation of our current solutions and the foundation of new solutions and business ventures for driving our global growth.”

About Giesecke & Devrient

Giesecke & Devrient (G&D), based in Munich, Germany, is an international technology group with subsidiaries and joint ventures throughout the world. In fiscal 2001 the group employed some 6,500 people and generated a revenue of € 1.12 billion. Founded in Leipzig in 1852, G&D began as a printer of securities, soon specializing in banknote production. The company has been developing solutions and complete systems for automatic currency processing since 1970. Today G&D is also a technology leader in smart cards, and a solutions provider in the fields of telecommunications, electronic payments, transportation, health, ID and Internet security. Additional information about the G&D Group can be found at www.gi-de.com. To learn more about G&D’s cash products and services, visit http://www.gdai.com.

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. Additional information about Carreker’s cash solutions and services can be found at www.carreker.com/main/solutions/cash/cash_ove.htm.