Symantec Reports Rise in Attacks

CUPERTINO, Calif. -- The latest Internet Security Threat
Report released today by Symantec Corp. (Nasdaq: SYMC) reveals that the
current Internet threat environment is characterized by an increase in data
theft, data leakage, and the creation of targeted, malicious code for the
purpose of stealing confidential information that can be used for financial
gain. Cyber criminals continue to refine their attack methods in an attempt
to remain undetected and to create global, cooperative networks to support
the ongoing growth of criminal activity.

"Symantec's Internet Security Threat Report gives our organization a
detailed analysis of worldwide Internet threats, helping us monitor security
risks and adjust our technology and protection processes accordingly," said
Dan Lohrmann, chief information security officer for the state of Michigan.
"Safeguarding sensitive information and the public's trust is essential for
our support of Michigan agencies providing law enforcement, health care, and
citizen service. The report's comprehensive data on the global threat
landscape complements our department's security operations."

Symantec's Internet Security Threat Report Volume XI reveals:
. Symantec reported more than 6 million distinct bot-infected computers
worldwide during the second half of 2006, representing a 29 percent increase
from the previous period. However, the number of command-and-control
servers used to relay commands to these bots decreased by 25 percent,
indicating that bot network owners are consolidating their networks and
increasing the size of their existing networks.

. Trojans constituted 45 percent of the top 50 malicious code samples,
representing a 23 percent increase over the first six months of 2006. This
significant increase supports Symantec's forecast from previous research,
which noted that attackers appeared to be making a shift away from
mass-mailing worms toward using Trojans.

Symantec Corp. (Nasdaq: SYMC)