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Press Release

IDC Market Data Confirms Strong Growth by Symantec

CUPERTINO, Calif. - July 20, 2001 - Symantec Corp. (Nasdaq: SYMC), a world leader in Internet security, strengthened its worldwide security software leadership during 2000 by jumping from the number four to the number two Internet security software company behind Computer Associates, according to new data recently released by IDC.

Entitled "Worldwide Internet Security Software Market Forecast and Analysis, 2001-2005," the report showed revenue growth of 19.8 percent by Symantec for Internet security software between 1999 and 2000. As a result, Symantec now has 9.8 percent of the market share worldwide, according to the IDC.

This growth is punctuated by a 36 percent increase in Symantec's enterprise anti-virus product sales during the June 2001 quarter, outpacing the market growth of 25 percent. In addition, June quarter 2001 sales of the company's intrusion detection solutions increased 14 percent from the same quarter a year ago, with sequential growth of 66 percent.

"These new figures confirm the soundness of Symantec's strategy in making customer service our number one priority and listening to what companies and consumers have to say about their needs concerning Internet security issues," said Gail Hamilton, executive vice president, Symantec Corporation. "We have made a concerted effort over the last two years to focus on expanding our presence in the enterprise customer space and establish leadership for serving consumers in the growing broadband access market. Our diversified products and services have positioned Symantec on the path of becoming the world's market leader for providing Internet security."

"This is a dramatic change. It's not often that you see the market leaders change so significantly in a $5 billion market," said Chris Christensen, information security analyst for IDC.

The report stated that the worldwide market for Internet security software grew to $5.1 billion in 2000, a 33 percent growth from 1999. IDC estimates that the market will continue to grow to $14 billion in revenue by 2005. North America represented 55.9 percent of the market; however, IDC estimates that Asia/Pacific will be the fastest-growing region in the world for Internet security software market through 2005.

About Symantec
Symantec, a world leader in Internet security technology, provides a broad range of content and network security solutions to individuals and enterprises. The company is a leading provider of virus protection, firewall and virtual private network, vulnerability management, intrusion detection, Internet content and e-mail filtering, remote management technologies and security services to enterprises around the world. Symantec's Norton brand of consumer security products leads the market in worldwide retail sales and industry awards. Headquartered in Cupertino, Calif., Symantec has worldwide operations in 37 countries. For more information, please visit www.symantec.com.

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FORWARD LOOKING STATEMENT: This press release contains forward-looking statements 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 risks that current global adverse economic conditions and reduced spending will continue or worsen; currency exchange fluctuations will adversely affect our results; the continuing integration of the Symantec and AXENT will not be successful; the difficulty of developing and marketing products that compete effectively with others and other economic, business, competitive and/or regulatory factors affecting Symantec's business generally. 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 the Company's previously filed Form 10-K for the year ending March 30, 2001.