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Symantec Offers Webcast Highlighting Findings of the Tenth Internet Security Threat Report

Report Shows Increase in Attacks on Vulnerable End-User Systems

CUPERTINO, Calif. – Sept. 25, 2006 – Symantec Corp. (Nasdaq: SYMC) today announced it will host a webcast presenting the findings of its tenth semiannual Internet Security Threat Report. The webcast, led by Dean Turner, executive editor of the report, will be held on Thursday, Sept. 28, 2006, at 9 a.m. PDT to provide consumers and IT managers a comprehensive, up-to-date analysis of security risks affecting individuals and organizations around the world.

By understanding the key findings of the report, webcast attendees will gain an understanding of the state of the overall Internet security threat environment, what these threats mean to their organizations and recommendations for protection against and mitigation of these threats moving forward. Future and emerging trends in Internet security will also be addressed. Attendees can register and access the live and archived session at:

http://enterprise.symantec.com/enterprise/webcast_summary.cfm?id=377

Symantec's latest Internet Security Threat Report, www.symantec.com/threatreport/, issued today, covers the six-month period from Jan. 1, 2006, through June 30, 2006, and includes an evaluation of network-based attacks, vulnerabilities, malicious code and an analysis of phishing, spam and security risks. The report is based on Symantec data collected from more than 40,000 security devices deployed in more than 180 countries.

About Symantec

Symantec is the world leader in providing solutions to help individuals and enterprises assure the security, availability, and integrity of their information. Headquartered in Cupertino, Calif., Symantec has operations in more than 40 countries. More information is available at www.symantec.com.

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