SOURCE: ArcSight

June 19, 2008 16:05 ET

ArcSight Elects Tom Reilly to Board of Directors

CUPERTINO, CA--(Marketwire - June 19, 2008) - ArcSight, Inc. (NASDAQ: ARST), today announced that Tom Reilly, ArcSight's president and chief operating officer, has joined the company's board of directors.

Mr. Reilly has served as the company's president since August 2007 and as chief operating officer since November 2006. From April 2004 to November 2006, he was vice president of business information services of IBM. From November 2000 until its acquisition in April 2004 by IBM, Mr. Reilly served as chief executive officer of Trigo Technologies, Inc., a product management software company. He holds a B.S. in mechanical engineering from the University of California, Berkeley.

"We are pleased to welcome Tom Reilly to the Board," said Robert Shaw, chairman and chief executive officer. "Tom's strategic operations expertise and extensive industry knowledge expands the depth of the ArcSight board, and we look forward to his continued contributions to the company."

About ArcSight

ArcSight (NASDAQ: ARST) is a leading global provider of compliance and security management solutions that protect enterprises and government agencies. ArcSight helps customers comply with corporate and regulatory policy, safeguard their assets and processes, and control risk. The ArcSight platform collects and correlates user activity and event data across the enterprise so that businesses can rapidly identify, prioritize, and respond to compliance violations, policy breaches, cybersecurity attacks, and insider threats. For more information, visit www.arcsight.com. (ARST-IR)

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