SOURCE: Websense, Inc.

March 25, 2008 16:15 ET

U.S. Patent and Trademark Office Reaffirms Websense Patent on Core Web Security Technology

Technology Enables Policy Enforcement by Mapping User Information, URL requests and Block/Allow Policies

SAN DIEGO, CA--(Marketwire - March 25, 2008) - Websense, Inc. (NASDAQ: WBSN) today announced that one of its patents covering core Web security and content filtering technology emerged from a reexamination by the U.S. Patent Office without any significant change in scope. Websense filed the request for reexamination with the U.S. Patent Office in 2003 to reinforce the validity of the patent and to protect the company's intellectual property.

On March 25, 2008, the U.S. Patent Office granted Reissue Number RE40187 to U.S. Patent No. 5,983,270 entitled "Method and Apparatus for Managing Internetwork and Intranetwork activity." The patent describes methods and systems for managing connection activity between a local area network and the Internet -- a core component of Web security and content filtering technology. The patent was one of the earliest Web filtering patents issued by the U.S. Patent Office.

"The Patent Office's decision to reissue this particular patent validates Websense's ownership of an important policy enforcement technology. This technology is foundational to today's Web security solutions," said John McCormack, senior vice president of product development, Websense. "Websense continues to develop innovative solutions built on this technology, including next-generation Web security products."

The patent describes managing connections between a network and the Internet using user information, mapping information and user policies. Furthermore, data is filtered according to rules based on these user policies and mapping information. The patent covers the concept of policy enforcement based upon rules established using usage quota and/or the hierarchy of the user within a group of users.

About Websense, Inc.

Websense, Inc. (NASDAQ: WBSN), a global leader in integrated Web, messaging and data protection technologies, provides Essential Information Protection™ for more than 42 million employees at more than 50,000 organizations worldwide. Distributed through its global network of channel partners, Websense software and hosted security solutions help organizations block malicious code, prevent the loss of confidential information and enforce Internet use and security policies. For more information, visit

Websense and Websense Enterprise are registered trademarks of Websense, Inc. in the United States and certain international markets. Websense has numerous other unregistered trademarks in the United States and internationally. All other trademarks are the property of their respective owners.

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