Symantec Announces New Mac OS X Leopard-Compatible Norton AntiVirus Featuring New Vulnerability Protection, Sleeker Design and Enhanced Performance

Market Wire, December, 2007

Symantec Corp. (NASDAQ: SYMC) today announced the new Mac OSX 10.5 Leopard compatible version of Norton AntiVirus 11 for Mac:

-- Features new vulnerability protection technology, delivering protection where the majority of today's attacks occur -- at the Web application layer

-- Automatically detects and removes viruses, scans and cleans downloaded files and e-mail attachments, and protects against software vulnerabilities

-- Detects and removes viruses and worms, prevents virus infected e-mail from spreading and protects against attacks

-- To address the growth of multi-platform PC and Mac environments, Norton AntiVirus 11 for Mac scans for both PC and Mac vulnerabilities, viruses and macro viruses

-- Includes performance and engine improvements to ensure better compatibility and less impact on system startup and resource usage. Product, virus definition, and vulnerability protection updates are automatic

-- A new Norton AntiVirus dashboard widget gives a quick summary of system protection and status. Features a "snooze button" scan, if you are in the middle of watching a movie on the computer, the virus scan can be rescheduled for a more convenient time

-- Norton AntiVirus 11 for Mac features can be accessed via the Terminal, allowing power users to bypass the application completely and add antivirus scans and other capabilities to their own custom scripts.

-- Norton Confidential for Macintosh, also compatible with Mac OS X Leopard, works with other security solutions like Norton AntiVirus 11 for Mac to keep you safe while shopping, banking or conducting other transactions on the Internet.

QUOTES:

Rowan Trollope, senior vice president, Consumer Business Unit, Symantec Corp. "This Leopard-ready version of Norton AntiVirus 11 for Mac gives users peace-of-mind by protecting against vulnerabilities and blocking viruses and other malicious code."

Rowan Trollope, senior vice president, Consumer Business Unit, Symantec Corp. "Mac users need security because no operating system is immune to threats. Mac users can also receive and pass on threats -- like Macro viruses -- to users of other PCs."

Norman R. Nager, Ph.D., Norton AntiVirus 11 for Mac beta tester and Symantec customer. "Norton AntiVirus 11 for Mac has proved to be well-designed, very effective and exceptionally fast with Tiger 10.4.x and Leopard 10.5.x It affords an excellent shield of protection for my computer."

Norman R. Nager, Ph.D., Norton AntiVirus 11 for Mac beta tester and Symantec customer. "I bought Norton AntiVirus for Mac because I have family, friends, alumni and colleagues who use the Windows operating system or Virtual PC, and I wanted to stop cold on my Mac any viruses, worms, and Trojan horses that could infect their computers."

RELEVANT LINKS

Symantec Security Response Weblog - The Double Attack: Windows Attack and Now Mac Attack

Symantec's Norton Library - Keeping Your Mac Safe

Flickr - Norton AntiVirus 11 Product Shots

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 more than 40 countries. More information is available at www.symantec.com .

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Contact: Cecilia Daclan Symantec Corp. +1 (424) 750-7575 cecilia_daclan@symantec.com www.symantec.com Adrian Frandle CarryOn Communication +1 (212) 672 0882 adrianf@carryonpr.com www.carryonpr.com