Gap Inc. Senior Vice President and CIO, Ken Harris, Joins CyberSource(R)

MOUNTAIN VIEW, Calif., Aug. 20-- CyberSource Corporation (Nasdaq: CYBS), a leading provider of risk management and electronic payment solutions for enterprise businesses, and a pioneer in Internet fraud detection, today announced that Ken Harris, senior vice president and CIO of Gap Inc., has joined CyberSource`s Board of Directors. Ken Harris oversees Gap Inc.`s information technology team, which is responsible for providing solutions and services to support Gap Inc.`s distribution centers, sourcing offices, headquarters facilities, and over 3,900 stores worldwide, including the online stores.

"Ken Harris is a perfect fit for our board," said Bill McKiernan, Chairman and CEO of CyberSource Corporation. "As CIO of Gap Inc., he has extensive and intimate knowledge of the needs of the customer set CyberSource serves. Ken`s insights will help CyberSource continue to craft world-class risk management and payment solutions for enterprise accounts."

"As a new member of CyberSource`s board, I welcome the opportunity to assist in the Company`s strategic decisions by providing insight from my first-hand experience managing the infrastructure of a large enterprise business selling through multiple sales channels," said Ken Harris, Senior Vice President and CIO of Gap Inc.

Harris joins board members Bill McKiernan of CyberSource, Stephen Novak of C.E. Unterberg, Towbin, Richard Scudellari of Morrison & Foerster LLP, Jack McDonnell, Jr., of Transaction Network Services, Inc., and Kenneth Thornton, formerly of IBM.

About CyberSource

CyberSource Corporation is a leading provider of risk management and electronic payment solutions for enterprise businesses selling via multiple sales channels. CyberSource solutions manage transaction risk and enable electronic payment processing for Web, call center/IVR, and POS environments. CyberSource professional services designs, integrates and optimizes enterprise-wide commerce transaction systems. Over 3,000 businesses use CyberSource solutions, including over half of the Dow Jones Industrial companies. The company is headquartered in Mountain View, California, and has sales and service facilities in Japan, the United Kingdom, and other locations in the United States. For more information, please visit CyberSource`s web site at http://www.cybersource.com or email info@cybersource.com.

NOTE: CyberSource is a registered trademark in the U.S. and other countries. All other brands and product names are trademarks or registered trademarks of their respective companies.

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