Blue Coat Awarded "Editor's Choice" for WAN Optimization in Network Computing Magazine Review

Blue Coat SG Wins Top Honors for Integrated Security, Ability to Optimize Video, High Level of "Configurability" SSL Capability and Availability of Shipping Client

SUNNYVALE, Calif., May 21, 2007 – Blue Coat Systems (Nasdaq: BCSI), the leader in secure content and application delivery, today announced that it was awarded the "Editor's Choice" award from CMP Media LLC's Network Computing magazine in its review of WAN optimization products.

The review appears in the May 14, 2007 edition of Network Computing magazine. Extensive testing was performed by the magazine at its well-regarded Syracuse University Real-World Labs®.

The Network Computing review identifies a number of strengths for Blue Coat's SG appliances. Some important differentiators include:

* Integrated security and control features * Ability to optimize live video through use of "stream splitting" technology * High level of "configurability." For example the review noted, "On the Blue Coat SG Appliance, for instance, we could configure proxies to intercept specific protocols, then define which optimizations would apply." * Ability to accelerate or control SSL-encrypted traffic; this capability has been available for the past year and even works with traffic from external sources, such as Software-as-a-Service applications * Integrated clustering for failover and load balancing * The SG Client WAN optimization software for laptop computers

"Winning the 'Editor's Choice' award from Network Computing magazine confirms the unique quality and breadth of our Blue Coat SG appliances," said Chris King, director of strategic marketing, Blue Coat Systems. "Providing more than just basic WAN acceleration, Blue Coat SG appliances can stop the bad and accelerate the good across most key enterprise applications—including internally and externally hosted SSL-encrypted applications and video. In addition, with the recent general availability of SG Client, enterprises and organizations can extend security, control and acceleration all the way to the mobile endpoint."

About Blue Coat Systems Blue Coat Systems is the technology leader in Application Delivery Networking. Blue Coat offers an Application Delivery Network Infrastructure that provides the visibility, acceleration and security required to optimize and secure the flow of information to any user, on any network, anywhere. This application intelligence enables enterprises to tightly align network investments with business requirements, speed decision making and secure business applications for long-term competitive advantage. Blue Coat also offers service provider solutions for managed security and WAN optimization, as well as carrier-grade caching solutions to save on bandwidth and boost the end-user Web experience. For additional information, please visit www.bluecoat.com.

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Blue Coat, BlueTouch, CacheFlow and the Blue Coat logo are registered trademarks or trademarks of Blue Coat Systems, Inc. and/or its affiliates in the United States and certain other countries. All other trademarks mentioned in this document are the property of their respective owners.