Symantec Announces New Mac OS X Leopard-Compatible Norton AntiVirus

Market Wire, December, 2007

Symantec Corp. (NASDAQ: SYMC) today announced the new Mac OS X 10.5 Leopard-compatible version of Norton AntiVirus, featuring new vulnerability protection technology, which delivers protection where many of today's attacks occur -- through applications connected to the Internet. Norton AntiVirus 11 for Mac also features a sleeker, redesigned user interface and enhanced performance. Mac users benefit with the number one selling antivirus solution for the Mac, which automatically detects and removes viruses in addition to scanning and cleaning downloaded files and e-mail attachments.

Mac users get "just-in-time" security with automatic updates from Symantec's leading global security network. Norton AntiVirus 11 for Mac also incorporates discrete and less obtrusive security alerts, and the product is designed to automatically update in the background, allowing users to conduct their online activities without interruption.

"With this new Leopard-ready version, Symantec is pleased to deliver industry leading protection for the Mac platform. The new vulnerability protection capabilities give our Mac customers an advanced layer of protection where it counts, addressing the shift in today's attacks," said Rowan Trollope, senior vice president, Consumer Business Unit, Symantec Corp. "Norton AntiVirus 11 for Mac enables users to enjoy computing without worrying about malicious threats that could lead to identity theft or data loss."

New to Norton AntiVirus 11 for Mac:

--  New Vulnerability Protection -- Norton AntiVirus 11 for Mac now
    provides an extra layer of protection against attacks that target software
    vulnerabilities. This signature-based protection prevents threats from
    infecting systems and deletes and blocks malware and viruses from
    installing when downloading pictures, music and software. This feature
    addresses today's threat landscape with 78 percent of today's attacks
    occurring at the Web application layer.*
--  Inclusive Scanning Prevents Viruses from Spreading -- Detects and
    removes viruses and worms, prevents virus infected e-mail from spreading,
    and protects against attacks.  Even Mac users can be sent a macro virus
    from a friend or co-worker on a PC.  Moreover, Macs may seem "immune" to
    some threats, but they can still pass malicious code on to other users via
    e-mail, instant messenger, or Web links.  Without the proper protection,
    Macs can be carriers for threats and infect other PCs.  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.
--  Improved Performance -- Norton AntiVirus 11for Mac includes
    performance and engine improvements to ensure better compatibility and less
    impact on system startup and resource usage so users can continue their
    online activities without a slow down in productivity.  Product, virus
    definition and vulnerability protection updates are done automatically in
    the background.  Once installed, Norton AntiVirus 11 for Mac starts
    protecting users with true "set it and forget" convenience while at the
    same time providing powerful customization features for power users.
--  Sleek, Elegant Design Mac Users Come to Expect -- Designed to deliver
    the simplicity that Mac users have come to expect, Norton AntiVirus 11 for
    Mac features a unique interface with easy to use set up features and
    wizards that indicate system status, including how and what is protected. A
    new Norton AntiVirus dashboard widget gives a quick summary of system
    protection and status. With the "snooze button" scan, if a user is in the
    middle of watching a movie on the computer, the virus scan can be
    rescheduled for a more convenient time.
--  Powerful Command Line Interface -- 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 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," said Norman R. Nager, Ph.D., Norton AntiVirus 11 for Mac beta tester.

Symantec's Norton Confidential for Macintosh is now also compatible with Mac OS X Leopard. Designed to work with other security solutions like Norton AntiVirus 11 for Mac, Norton Confidential for Mac keeps consumers safe while shopping, banking and conducting other online transactions.

Symantec's Global Intelligence Network

Norton AntiVirus 11.0 for Mac is backed by Symantec's Global Intelligence Network, a worldwide network comprised of information security and operations specialists as well as Symantec's global community of thousands of Internet activity sensors. The Global Intelligence Network provides Symantec Security Response with an unparalleled, data-driven view of the entire security landscape. This holistic view translates into a unique competitive advantage, and Symantec's worldwide reach enables Symantec to see threats first so customers can respond rapidly.