Terakata Manufacturing Deploys Blue Coat Appliances for WAN Optimization

Excel File Transfer Time Reduced from Five Minutes to Four Seconds

SUNNYVALE, Calif., Sept. 4 -- Blue Coat Systems, Inc. (NASDAQ:BCSI) , a leader in WAN Application Delivery and Secure Web Gateway, today announced that Terakata Manufacturing in Tohaku-gun, Japan has selected and deployed Blue Coat(R) ProxySG(R) appliances to accelerate the delivery of critical data files across its Wide Area Network (WAN) between its headquarters and manufacturing plants.

Many of the files being delivered are large Microsoft Excel spreadsheets containing business-critical data and are around 6 megabytes in size. Since installing the Blue Coat appliances, files that once took up to five minutes to access now can be accessed in approximately four seconds. The faster access has resulted in a considerable improvement in employee productivity and the speed of important business processes. Terakata Manufacturing also realizes significant acceleration of computer-aided design (CAD) files between its offices through its use of ProxySG appliances.

"We are pleased to provide such a dramatic improvement in WAN performance resulting in greater employee productivity and an acceleration of business processes," said Matt Young, vice president, Asia Pacific, Blue Coat Systems. "Blue Coat ProxySG appliances accelerate the full range of critical business applications and result in increased productivity and lower WAN costs for the enterprise or organization."

Blue Coat ProxySG appliances utilize the company's MACH5 patent-pending framework of acceleration technologies designed to accelerate all key enterprise applications, including: Web and secure Web applications (SSL), file services, email/Microsoft Exchange and live streaming and on-demand video. The MACH5 acceleration technology is integrated into Blue Coat ProxySG appliances in order to enable organizations to manage user/application interactions -- to stop undesirable applications, regulate less important applications and accelerate critical applications, even when application traffic is encrypted using SSL.

About Blue Coat Systems

Blue Coat secures Web communications and accelerates business applications across the distributed enterprise. Blue Coat's family of appliances and client-based solutions -- deployed in branch offices, Internet gateways, end points, and data centers -- provide intelligent points of policy-based control enabling IT organizations to optimize security and accelerate performance between users and applications. Blue Coat has installed more than 40,000 appliances worldwide. Blue Coat is headquartered in Sunnyvale, California, and can be reached at (408) 220-2200 or http://www.bluecoat.com/.

FORWARD LOOKING STATEMENTS: The statements contained in this press release that are not purely historical are forward-looking statements, including statements regarding Blue Coat Systems' expectations, beliefs, intentions or strategies regarding the future, and including statements regarding the capabilities and expected performance of Blue Coat Systems' products. All forward-looking statements included in this press release are based upon information available to Blue Coat Systems as of the date hereof, and Blue Coat Systems assumes no obligation to update any such forward-looking statements. Forward-looking statements involve risks and uncertainties, which could cause actual results to differ materially from those projected. These and other risks relating to Blue Coat Systems' business are set forth in Blue Coat Systems' Form 10-K for the year ended April 30, 2007, and other reports filed from time to time with the Securities and Exchange Commission.

Blue Coat and other applicable product names are trademarks or registered trademarks of Blue Coat Systems, Inc. in the United States and other countries. All other trademarks, trade names or service marks used or mentioned herein belong to their respective owners.

  Media Contacts:                         Investor Contact:

  Steve Schick                            Carla Chun
  Blue Coat Systems                       Blue Coat Systems
  steve.schick at bluecoat.com               carla.chun at bluecoat.com
  408-220-2076                            408-220-2318

  Anne Smith
  Loughlin/Michaels Group for Blue Coat Systems
  anne at lmgpr.com
  408-313-8089