Caterpillar Selects Symantec to Provide Anti-Virus Solution

World's largest manufacturer of construction and mining equipment to deploy Norton AntiVirus across worldwide network

Cupertino, Calif --November 23, 1998-- Symantec Corporation (Nasdaq: SYMC) announced today that it has been selected by Caterpillar, the world's leading manufacturer of construction and mining equipment, diesel and natural gas engines and industrial gas turbines, to provide anti-virus protection for its worldwide desktop network.

In May this year, Symantec and IBM announced an alliance in which IBM assigned its antivirus customer base to Symantec and the two companies agreed to jointly develop and deliver a new range of antivirus products under the Norton name. In September, Symantec also announced that it had acquired Intel's anti-virus business and committed to serve Intel's 18,000 anti-virus customers. Symantec also licensed a number of Intel's systems management technologies to incorporate into future anti-virus solutions.

Caterpillar will deploy Norton AntiVirus to replace IBM antivirus software. The transition program will begin in the first quarter of 1999.

Enrique Salem, vice president of Symantec's Security and Assistance Business Unit, adds: "Caterpillar is a Fortune 500 company with representation in every major market in the world. Like any large organization, ensuring that the corporate network is secure and free of viruses is critical to success. Caterpillar is one of many highly valued corporate customers that rely on Symantec's technology to protect their network. We are very pleased to be working with such a prestigious organization."

About Norton AntiVirus
Since Symantec and IBM announced their alliance, more than 1,800 companies in the U.S.A. and 1,500 companies in Europe have committed to transition to Norton AntiVirus.

The Norton AntiVirus product line includes a multi-tier strategy that integrates a powerful anti-virus solution at desktops, servers, groupware servers, Internet e-mail gateways and firewalls to provide users with the most comprehensive virus detection and repair. The products provide users the security of knowing they have the most complete protection available, whether downloading files from the Internet, opening e-mail attachments or accessing floppy disks.

About Caterpillar
Caterpillar is the world's largest manufacturer of construction and mining equipment, diesel and natural gas engines, and industrial gas turbines. Headquartered in Peoria, Illinois, the company posted record sales in 1997 of more than US$18.9 billion.

About Symantec
Symantec is the world leader in utility software for business and personal computing. Symantec products and solutions help make users productive and keep their computers safe and reliable anywhere and anytime. Symantec offers a broad range of solutions and is acclaimed as a leader in both customer satisfaction and product brand recognition. Symantec is traded on Nasdaq under the symbol SYMC. More information on the company and its products can be obtained at www.symantec.com.

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