Symantec Leads U.S. Retail Software Sales Once Again

PC Data Shows Norton AntiVirus 5.0 Top-Selling Software for Third Consecutive Month

Cupertino, Calif, July 22, 1999 - Symantec Corporation's (Nasdaq:SYMC) leadership position in the U.S. retail software market has been confirmed by the latest figures released by independent market intelligence firm, PC Data. PC Data's top-selling software list for June 1999 reported Norton AntiVirus 5.0 as the best-selling software product overall for the third consecutive month and Norton SystemWorks 2.0 as the fourth best selling product.

According to PC Data's June software sales report, Symantec continues to be the leading provider of business software in the U.S. retail market with three top-selling products in the Windows and Macintosh business software categories.

Symantec grew U.S. retail sales in the June quarter 1999 by 55 percent in dollars and 126 percent in units compared to the June quarter 1998. The PC Data figures show Norton AntiVirus strengthened its leadership with a 64 percent unit share of the U.S. retail anti-virus market and Norton SystemWorks * continued to lead the U.S. utility suite market with 76 percent unit market share. The Symantec products in PC Data's top selling Windows business software list for June were Norton AntiVirus 5.0, Norton SystemWorks 2.0 and Norton Utilities 4.0.

*versus McAfee Office products

About PC Data
PC Data is the leading market intelligence firm for software and hardware point of sale data with coverage of more than 80 percent of the U.S. retail marketplace. The Reston, VA based company has become the industry standard for tracking software and hardware sales through the retail, corporate and distributor channels. PC Data is located on the World Wide Web at http://www.pcdata.com.

About Symantec
Symantec is a world leader in Internet security technology and technology solutions that help companies manage and support workforces that use laptop computers and other mobile devices.

The company is a leading provider of software products for the consumer market and is rapidly growing its presence as a provider of solutions to enterprise organizations

NOTE TO EDITORS: If you would like additional information on Symantec Corporation and its products, view the Symantec Press Center at www.symantec.com/PressCenter/ on Symantec's Website.

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