CARREKER HIRES LISA PETERSON AS CHIEF FINANCIAL OFFICER

DALLAS, TX (October 2, 2003) — Carreker Corporation (Nasdaq: CANI), a leading provider of technology and consulting solutions for the financial industry, announced that Lisa Peterson has been hired as the company’s executive vice president and chief financial officer.

Peterson was most recently executive vice president, chief financial and administrative officer of Monarch Dental Corporation, a $200 million publicly traded dental practice management company. During her tenure there, from 1999 to 2003, her responsibilities included accounting, investor relations, corporate governance, legal, human resources, treasury and risk management.

J. D. (Denny) Carreker, chairman and CEO of Carreker Corporation, said, “We are pleased to have Lisa join us in this key role at this strategically important time for our company. Lisa’s background in a broad scope of financial and administrative matters will give her a high level of credibility among investors and bankers, and her strong leadership skills make her a valuable member of our management team.”

Donald L. House, chairman of Carreker’s Audit Committee and a member of the search committee for the chief financial officer, said, “We conducted a rigorous national search during which Lisa Peterson emerged as an ideal candidate – a versatile and talented executive whose skills have been forged in a variety of business situations. We look to her to play a significant role in building shareholder value in Carreker.”

Before Monarch Dental, Peterson’s experience consisted of two years as chief financial officer for Viacom Retail Stores, Inc. (the retail and wholesale start-up division of Viacom, Inc.), six years culminating in the position of vice president and controller of Pearle Vision, Inc. (the optical retailer), one year as manager of internal audit at Zale Corporation (the national jewelry retailer) and ten years as an auditor with Coopers and Lybrand (the accounting and consulting firm). She received her undergraduate degree in accounting from the University of Texas at Austin in 1980 and her CPA in 1982.

Denny Carreker also said, “We want to express our appreciation to Frank Tilley of Tatum Partners who served as interim CFO since mid-June. He provided valuable leadership and direction for our financial function during this period.”

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 around the world including London, Toronto, and Sydney. For more information, visit www.carreker.com.