PRESS RELEASE

SANTA CLARA, California, January 6, 2008 - Zscaler, the industry-first, multi-tenant SaaS security service, announced today that it has released its 2009 web security predictions. The predictions focus on a variety of factors influencing the landscape today including cloud computing, mobile devices, increased complexity in browsers and web applications and changing business needs. Rather than looking at general trends in technology or security overall, the Zscaler predictions focus specifically on recent changes in web technologies and user behaviors and investigates how attackers are likely to exploit these new paradigms.

"2009 will be an intriguing year," according to Michael Sutton, VP, Security Research. "With the emergence of revolutionary changes such as cloud computing, widespread adoption of next generation web application technologies and the 'real' web arriving on mobile devices, we must anticipate that attackers will adjust their tactics to leverage these shifts. Likewise, companies must adjust their security posture to ensure that they're staying ahead of the curve and protecting against tomorrow's attacks before they become a reality."

Zscaler's 2009 Web Security Predictions can be found online at: http://research.zscaler.com/2009/01/web-security-predictions.html

"As an in-the-cloud security provider we're in a unique position to identify threats as they emerge from all over the globe," said Jay Chaudhry, Zscaler's CEO. "With web traffic from a multitude of clients traversing through Zscaler's network of high speed gateways, we've able to identify trends in attack patterns that others rarely have the opportunity to see."

About Zscaler, Inc.

Through a multi-tenant, globally-deployed infrastructure, Zscaler enforces business policy, mitigates risk, and provides twice the functionality at a fraction of the cost of current solutions. It enables organizations to provide the right access to the right users, from any place and on any device-while empowering the end-user with a rich Internet experience. For more information, visit us at www.zscaler.com.

Press Contact: Liz Youngs, Zscaler Press Relations 843-971-7140 office, 843-412-6327 mobile [email protected] Zscaler(tm), and the Zscaler Logo are trademarks of Zscaler, Inc. in the United States. All other trademarks, trade names or service marks used or mentioned herein belong to their respective owners.