Symantec Files Additional Patent Infringement Suit Against Zscaler, Inc.

Reaffirms Commitment to Safeguarding Symantec's Valuable Intellectual Property

MOUNTAIN VIEW, Calif. – (BUSINESS WIRE) – Symantec Corp. (NASDAQ:SYMC) today announced that it has filed a second patent infringement lawsuit against Zscaler, Inc. in the U.S. Federal District Court for the District of Delaware. Symantec previously filed a separate patent infringement complaint against Zscaler on December 12, 2016.

The lawsuit filed today asserts that Zscaler has been illegally using Symantec's patented technology relating to a variety of network security technologies, including web security, security scanning, data loss prevention, intrusion prevention and intrusion signature analysis. The seven patents asserted in the lawsuit filed today pre-date the formation of Zscaler and include six patents that were obtained through Symantec's acquisition of web security market leader Blue Coat Systems. This lawsuit is based on U.S. Patent Nos. 6,285,658; 7,360,249; 7,587,488; 8,316,429; 8,316,446; 8,402,540; and 9,525,696.

"We are taking this additional action because we believe that Zscaler is continuing to infringe the intellectual property of Symantec and Blue Coat," said Scott Taylor, Symantec's Executive Vice President, General Counsel and Secretary. "Symantec has a responsibility to its shareholders and customers to protect the Company's investments in innovative technologies. Symantec will continue to vigorously defend its valuable portfolio of patents and other intellectual property assets."

Symantec noted that it is continuing to investigate this matter and will file further claims if additional infringements are identified.

About Symantec

Symantec Corporation (NASDAQ: SYMC), the world's leading cyber security company, helps organizations, governments and people secure their most important data wherever it lives. Organizations across the world look to Symantec for strategic, integrated solutions to defend against sophisticated attacks across endpoints, cloud and infrastructure. Likewise, a global community of more than 50 million people and families rely on Symantec's Norton and LifeLock product suites to protect their digital lives at home and across their devices. Symantec operates one of the world's largest civilian cyber intelligence networks, allowing it to see and protect against the most advanced threats. For additional information, please visit www.symantec.com or connect with us on Facebook, Twitter, and LinkedIn.

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