SYMANTEC'S NEW NORTON ANTIVIRUS 10.0 FOR MACINTOSH OFFERS ENHANCED
USABILITY AND CUSTOMIZATION FEATURES, 'TIGER' COMPATIBILITY

New Product Features Provide Essential, Simplified Threat Protection and
Optimize System Performance

CUPERTINO, Calif. -- May 10, 2005 -- Symantec (Nasdaq: SYMC), the global
leader in information security, today announced Norton AntiVirus 10.0 for
Macintosh, the world's most renowned protection against known and emerging
virus threats. Norton AntiVirus 10.0 for Macintosh is scheduled to be
widely available in May, and includes a new Global Threat Assessment
dashboard to provide users with an overview of current virus threats. The
product also includes a new Contextual Menu support feature and custom
SafeZones for improved ease-of-use and efficiency. Norton AntiVirus 10.0
for Macintosh is also fully compatible with Apple's new version of Mac OS X
10.4 -- "Tiger."

"In today's fast paced online threat environment, it is important for
Symantec to offer secure protection at all end points," said Matthew
Moynahan, vice president Consumer Products and Solutions, for Symantec.
"With Norton AntiVirus 10.0 for Macintosh, Symantec is pleased to add new
customization and usability enhancements to support Mac users with the best
possible virus protection solution, as well as support Apple's new Mac OS X
10.4."

New Global Threat Assessment Dashboard
Norton AntiVirus 10.0 for Macintosh includes a new Global Threat Assessment
dashboard that provides the status of local computer virus protection and
an overview of global threats allowing users to quickly and efficiently
monitor their Macs' security. This new feature leverages "Tiger's" new
dashboard functionality to offer the user a report and assessment of the
three most recent and the three most critical virus threats on both the PC
and Mac platforms. Norton AntiVirus also leverages the Symantec Security
Response servers to download the most up-to-date threat information.

The Global Threat Assessment dashboard also allows users to easily monitor
their security protection by showing the status information for Norton
AntiVirus's Auto-Protect feature. Users can also use the dashboard to
quickly view the last time virus definitions were updated.

Contextual Menu Support and Custom SafeZones Norton AntiVirus 10.0 for
Macintosh offers users the enhanced convenience of quick and easy manual
virus scans. The contextual menu support feature lets users scan files and
directories "on the fly" by right clicking/control clicking on a particular
file or directory. Users can scan specific files and directories manually
without having to launch the Norton AntiVirus application.

Designed with power users in mind, the custom SafeZones feature gives users
an added level of convenience and works to optimize system performance.
Users can specify particular areas of their drive, or specific volumes or
files, to be or not to be routinely scanned for threats. Video and media
editors, for example, with huge directories or volumes, can specify a
SafeZone, to avoid time consuming scans of their entire hard drive. Smart
volume scanning also allows Norton AntiVirus 10.0 for Macintosh to remember
previously scanned CD or DVD media to eliminate unnecessary scans and keep
users' machines running at peak performance.

Continued Core Protection
Norton AntiVirus 10.0 for Macintosh continues to offer important core
protection features such as automatic detection of viruses, worms and
Trojan horse threats. Auto-Protect functionality maximizes user protection
by providing email scanning and monitoring of files and applications that
get written to the hard dive. Symantec's LiveUpdate technology allows users
to automatically receive the latest virus definitions for both Mac and PC
viruses to always keep protection current. Norton AntiVirus 10.0 for
Macintosh is also backed by the experts at Symantec Security Response to
ensure users have the most advanced protection.

Pricing and Availability
Norton AntiVirus 10.0 for Macintosh runs on Mac OS X and is available now
for pre-order at (http://www.symantecstore.com/)www.SymantecStore.com for
an estimated retail price of $69.95. Current users of Symantec's Macintosh
products, as well as users of select competitive products, can take
advantage of an upgrade mail-in-rebate of $30. Norton AntiVirus 10.0 for
Macintosh is expected to be available for purchase in mid May at various
retail locations, the Symantec online store at www.symantecstore.com as
well as from other online retailers.

About Symantec
Symantec is the global leader in information security providing a broad
range of software, appliances and services designed to help individuals,
small and mid-sized businesses, and large enterprises secure and manage
their IT infrastructure. Symantec's Norton brand of products is the
worldwide leader in consumer security and problem-solving solutions.
Headquartered in Cupertino, Calif., Symantec has operations in more than 35
countries. More information is available at http://www.symantec.com.