Symantec Files Patent Infringement Suit Against Zscaler, Inc.

PRESS RELEASE

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

The lawsuit asserts that Zscaler products violate seven of Symantec’s patents across a variety of network security technologies including web security, data loss prevention, threat prevention, access control and antivirus techniques. This lawsuit is based on U.S. Patent Nos. 6,279,113; 7,203,959; 7,246,227; 7,392,543; 7,735,116; 8,181,036; and 8,661,498.

“We have an obligation to our customers and our shareholders to defend our intellectual property when we believe it has been infringed, and the lawsuit filed against Zscaler is intended to stop them from copying our pioneering technologies in network security,” said Scott Taylor, Symantec’s Executive Vice President, General Counsel and Secretary. “Since 2004, Symantec has invested over $10 billion in R&D to provide our customers with innovative technologies, and much of that investment is protected by our portfolio of more than 2,000 United States patents. Today’s action is a necessary step to defend our valuable ideas and assets that Symantec customers rely on for industry-leading cyber defense.”

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 suite of products for protection at home and across all of 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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