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Press Release

Symantec Releases Vista-Compatible Norton Solutions

Norton Internet Security and Norton AntiVirus Users to Receive Industry-Leading Boost to Malware Detection Capabilities with “Ongoing Protection” Delivery of SONAR Technology

CUPERTINO, Calif. – January 17, 2007 – Symantec Corp. (Nasdaq: SYMC) today announced that Norton Internet Security, Norton AntiVirus and Norton Confidential will be Vista-compatible in time for the public release of the Windows Vista Operating System for consumers. Users who purchased Norton Internet Security 2006 and 2007, Norton AntiVirus 2006 and 2007 and Norton Confidential designed for Windows XP operating system are eligible for a free Windows Vista compatibility upgrade.

Additionally, the company announced that current subscribers of both Norton Internet Security and Norton AntiVirus are eligible for a ground-breaking technology update. Leveraging technology from the WholeSecurity, Inc. acquisition, Symantec Online Network for Advanced Response (SONAR) will significantly enhance malware detection and protect Norton Internet Security and Norton AntiVirus users from today’s increasingly volatile and unpredictable online threat landscape.

“We’ve improved on Norton’s already award-winning protection, and are ensuring that customers remain fully protected on the new Vista operating system,” said Rowan Trollope, vice president, Consumer Business Unit, Symantec. “Our subscription service model enables us to provide our customers with cutting edge security technologies such as SONAR as soon as they become available, thereby helping ensure that customers always have the most up-to-date protection.”

SONAR is behavioral detection technology that protects against malicious code before standard virus and spyware detection definitions have been created. Such emerging and unknown malicious code can strike in the form of Trojan Horses, worms, mass-mailing viruses, spyware or downloaders. While many products use only a limited set of heuristics, SONAR draws from an extensive range of heterogeneous application behavior data which not only greatly enhances detection but also significantly minimizes false positives. For consumers, the result is zero-hour protection from a vast threat spectrum without being bothered with confusing decision-based prompts. SONAR technology provides protection against emerging threats in a way that does not compromise the user experience or require additional system resources. When detections are made through SONAR, no user interaction is required.

“What sets SONAR technology apart from the pack is that our method of heuristics-based detection is so comprehensive and accurate that it boasts a 0.0004% false positive detection rate (4 in 1,000,000 users) of potential threats,” Trollope continued. “This is truly unheard of in the industry and just another example of Symantec and its Norton brand providing customers state-of-the-art protection against today’s most malicious security threats.”

SONAR will be delivered to all current Norton AntiVirus and Norton Internet Security users via the Ongoing Protection subscription service model. The subscription service includes 12 months of protection updates and new product features made available throughout the year in response to the rapid evolution of Internet threats and the need for leading edge protection technology. With the purchase of most Norton products, customers are entitled to receive both protection updates and technology updates as available for the length of their subscription.

For more information on how to receive the Windows Vista compatibility upgrade for Norton AntiVirus and Norton Internet Security, please visit http://www.symantec.com/vistaupdate.*

Pricing and Availability

Norton AntiVirus 2007 and Norton Internet Security 2007 for Windows Vista and Windows XP are currently available for purchase through the Symantec online store at www.symantecstore.com and will become available in various retail locations and online retailers in January 2007. Norton Confidential for Windows Vista and Windows XP will be available for purchase through the Symantec online store beginning Jan. 29, 2007 and also through various retail locations and online retailers in early February 2007.

The suggested retail price of Norton AntiVirus 2007 is US$39.99 (includes one-year service subscription to use the product and receive Symantec’s protection updates). The suggested retail price for Norton Internet Security 2007 is US$69.99 (includes one-year service subscription to use the product and receive Symantec’s protection updates). Norton Internet Security 2007 can be installed on up to three PCs. Small Office Packs for 5- and 10-users are scheduled to be available for both products. The suggested retail price for Norton Confidential is US$49.99 (includes one-year service subscription to use the product and receive Symantec’s protection updates).

An optional add-on pack with AntiSpam and Parental Controls will be available for Vista-compatible Norton Internet Security 2007customers who desire these features.

About Symantec

Symantec is a global leader in infrastructure software, enabling businesses and consumers to have confidence in a connected world. The company helps customers protect their infrastructure, information, and interactions by delivering software and services that address risks to security, availability, compliance, and performance. Headquartered in Cupertino, Calif., Symantec has operations in 40 countries. More information is available at www.symantec.com.

NOTE TO EDITORS: If you would like additional information on Symantec Corporation and its products, please visit the Symantec News Room at http://www.symantec.com/news. All prices noted are in U.S. dollars and are valid only in the United States.

* Microsoft® Windows Vista™ compatibility update subject to production release of the Windows Vista operating system within the service period. Separate downloads may be required. For more information, go to www.symantec.com/vistaupdate. See Microsoft for Windows Vista system requirements.

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