PRESS RELEASE

CUPERTINO, Calif. " Nov. 17, 2008 " Symantec Corp. (Nasdaq: SYMC) today announced it has completed its acquisition of MessageLabs, on Nov. 14, 2008. MessageLabs is the leading provider of online messaging services, securing more than three billion email connections each day. The acquisition agreement between Symantec and MessageLabs was announced on Oct. 8, 2008.

With the acquisition of MessageLabs, Symantec gains a leadership position in the Software-as-a-Service (SaaS) market and expands Symantec's existing portfolio of SaaS offerings with messaging and web security services from MessageLabs. The combined expertise from MessageLabs and Symantec will expand SaaS delivery and customer support models across the Symantec technology portfolio and accelerate the development of new hybrid online and on-premise offerings for IT professionals.

Messaging security solutions protect organizations from the costly effects of spam and viruses entering the network and prevent unauthorized content from being transferred into the wrong hands. With the close of the acquisition, Symantec expands its messaging security market leadership to two times its nearest competitor and offers customers greater choice by providing the broadest range of offerings in the messaging security market including software, appliance and hosted services. Customers will also have greater access to SaaS offerings through the up-sell and cross sell of services into the MessageLabs customer base and through Symantec channels.

Additional Resources For additional information on the MessageLabs acquisition and planned integration points with the Symantec portfolio please visit: http://go.symantec.com/messagelabs.

About Symantec Symantec is a global leader in providing security, storage and systems management solutions to help consumers and organizations secure and manage their information-driven world. Our software and services protect against more risks at more points, more completely and efficiently, enabling confidence wherever information is used or stored. More information is available at www.symantec.com.

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FORWARD-LOOKING STATEMENTS: This press release contains forward-looking statements within the meaning of U.S. federal securities laws, including expectations regarding the potential benefits of the acquisition, that involve known and unknown risks and uncertainties that may cause actual results to differ materially from those expressed or implied in this press release. Such risk factors include, among others, our ability to successfully integrate the merged businesses and technologies, and customer demand for the technologies and integrated product offerings. Actual results may differ materially from those contained in the forward-looking statements contained in this press release. Additional information concerning these and other risk factors is contained in the Risk Factors section of Symantec's most recently filed Form 10-K. Symantec assumes no obligation to update any forward-looking statement contained in this press release. The contents of the Symantec website shall not be deemed incorporated by reference into this press release.