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Symantec's Norton Internet Security to be Offered to Scientific-Atlanta Broadband Modem Customers

Comprehensive Suite Safeguards High-Speed Connections from Malicious Threats and Inappropriate Content

CUPERTINO, Calif. - August 21, 2003 - Symantec Corp. (Nasdaq: SYMC), the world leader in Internet security, today announced that Scientific-Atlanta will include Norton Internet Security 2003 with select cable modem shipments. Norton Internet Security 2003 is the most tightly integrated and complete online security and privacy suite. Scientific-Atlanta is the fourth largest cable modem supplier in the U.S. Under terms of the agreement, Scientific-Atlanta will ship Norton Internet Security 2003 with a 60-day trial subscription with WebSTAR™ DPX100™ and DPX200™ cable modems. Distribution will begin in North America.

"Scientific-Atlanta is one of the top five cable modem suppliers worldwide and we shipped over 270,000 WebSTAR products in the quarter that just ended," said Joe Wytanis, director of data product business within Scientific-Atlanta's Subscriber Networks Sector. "The combination of Symantec's Norton Internet Security suite and our high-speed, standards-based cable modems delivers a powerful solution for proactive consumers who want protection against a wide range of potential threats."

"Broadband connections provide the convenience and speed of always-on Web access, yet they can also present an appealing target for hackers and malicious code," said Steve Cullen, senior vice president of Symantec Consumer and Client Product Delivery. "Symantec is pleased to offer to protect Scientific-Atlanta cable customers from these growing risks with Norton Internet Security-easy-to-use, proven security and privacy software that, like cable connections, is always on to guard all entry points against new and emerging threats."

According to a May 2003 Nielsen/NetRatings report, nearly 40 million people have broadband Internet access in their homes. Broadband users at home grew 49 percent year-over-year, while narrowband users declined 12 percent during May 2003. This rapid, widespread adoption of broadband introduces a growing population of computer users to the unique risks of having always-on connections to the Internet, which hackers can identify through port scans and use to gain unauthorized access to the user's PC.

Norton Internet Security 2003 includes Symantec's best-of-breed antivirus, firewall, intrusion detection, privacy control and content filtering technologies in a single, easy-to-use suite. Norton Internet Security automatically blocks viruses, worms, Trojan horses and hackers and prevents confidential information from being sent without authorization in outgoing email messages and Microsoft Office or instant message attachments. Exclusive worm- and script-blocking technology automatically defends against known and unknown threats without the need for virus definitions.

Norton Internet Security is the only security suite to offer a complete intrusion detection system, which adds another layer of security by automatically detecting and stopping malicious attacks such as BugBear, Nimda and Code Red. Further, virus definitions, firewall rules and intrusion detection signatures are updated automatically-without requiring user intervention-to ensure uninterrupted protection against the latest threats.

Scientific-Atlanta customers will be offered a free 60-day trial subscription service from Symantec that will deliver regular updates to virus definitions, firewall rules, intrusion detection signatures and other security updates. Users are able to purchase a one-year subscription renewal after the expiration of the initial subscription period.

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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FORWARD LOOKING STATEMENT: This press release contains forward-looking statements, including forecasts of future revenue and earnings per share, expected industry patterns, and other financial and business results that involve known and unknown risks, uncertainties and other factors that may cause our actual results, levels of activity, performance or achievements to differ materially from results expressed or implied by this press release. Such risk factors include, among others: the sustainability of recent growth rates, particularly in consumer products; whether certain market segments, particularly enterprise security, grow as anticipated; the positioning of Symantec's products in those segments; the competitive environment in the software industry; ability to integrate acquired companies and technology; ability to retain key employees; ability to successfully combine product offerings and customer acceptance of combined products; general market conditions, fluctuations in currency exchange rates, changes to operating systems and product strategy by vendors of operating systems; and whether Symantec can successfully develop new products and the degree to which these gain market acceptance. Actual results may differ materially from those contained in the forward-looking statements in this press release. Additional information concerning these and other risk factors is contained in the Risk Factors sections of Symantec’s previously filed Form 10-K and Form 10-Q.