Computer Associates, Sybari and Symantec Join Virus Information Alliance

REDMOND, Wash., July 1, 2003 — Microsoft Corp. today welcomed Computer Associates International Inc. (CA), Sybari Software Inc. and Symantec Corp. as members of the Virus Information Alliance (VIA), a centralized resource for Internet users seeking information about the latest virus threats affecting Microsoft®
technology. Internet users should continue to look to their preferred antivirus provider for information on attacks affecting non-Microsoft technology.

CA, Sybari Software Inc. and Symantec Corp. will provide valuable information to the VIA to more rapidly advise Internet users about virus targets, impact and methods of remediation. Links to VIA members’ virus advisories are posted at .

Established with members Microsoft, Network Associates Inc. and Trend Micro Inc., the VIA offers recommended best practices for preventing malicious attacks, information about specific viruses, how-to articles and links to other antivirus resources on its Web site. In addition to providing the latest reports on medium- and high-severity virus incidents, the VIA Web site allows Internet users to quickly and easily refer to their preferred antivirus vendor for more-detailed technical information about specific viruses and their eradication and customer support.

“This centralized, easily accessible clearinghouse of antivirus information will help save customers critical time in identifying and defending against these types of attacks,”
said Andy Erlandson, director of security for Product Support Services at Microsoft.
“We welcome the expertise from CA, Sybari and Symantec in helping customers maintain more secure and trustworthy computing environments.”

About CA

Computer Associates International Inc. (NYSE
), one of the world’s largest software companies, delivers software and services that enable organizations to manage their IT environments. Focus areas include network and systems management, storage and security management, portal and business intelligence, and application life cycle management. Founded in 1976, CA is headquartered in Islandia, N.Y., and operates in more than 100 countries. More information on CA is available at .

Since 1995, Sybari Software Inc. has led the market in providing innovative solutions that protect leading messaging and collaboration environments from viruses and security threats. Today, over 8 million messaging and collaboration server users are virus and spam free, as a direct result of Sybari’s Antigen technology. Sybari’s Antigen is unsurpassed in providing protection of corporate messaging environments. Antigen’s unique architecture institutes a preemptive line of defense from viruses and malicious code. Antigen for Microsoft Exchange, Antigen for SharePoint (TM) Portal Server, and Antigen for Lotus Domino are distributed in more than 50 countries through Sybari’s worldwide locations and distribution network. Sybari is headquartered in East Northport, N.Y., with an EMEA headquarters in Amsterdam, the Netherlands, and additional offices in Spain, the United Kingdom, Germany, France, Italy, Dubai, Singapore, Australia, Japan, Brazil and Mexico.

About Symantec

Symantec Corp. (Nasdaq: SYMC), the world leader in Internet security technology, provides a broad range of content and network security software and appliance solutions to enterprises, individuals and service providers. The company is a leading provider of client, gateway and server security solutions for virus protection, firewall and virtual private network, vulnerability management, intrusion detection, Internet content and e-mail filtering and remote management technologies as well as security services to enterprises and service providers around the world. Symantec’s Norton brand of consumer security products is a leader in worldwide retail sales and industry awards. Headquartered in Cupertino, Calif., Symantec has worldwide operations in 36 countries. More information is available at .

About Microsoft

Founded in 1975, Microsoft (Nasdaq
) is the worldwide leader in software, services and Internet technologies for personal and business computing. The company offers a wide range of products and services designed to empower people through great software — any time, any place and on any device.

Microsoft and SharePoint are either registered trademarks or trademarks of Microsoft Corp. in the United States and/or other countries.

The names of actual companies and products mentioned herein may be the trademarks of their respective owners.

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