Seasoned executives join Zscaler as part of its rapid expansion

San Jose, California, August 14, 2012

Zscaler, The Cloud Security Company, and provider of the world’s most comprehensive cloud-delivered mobile, email, and web security solutions, today announced the appointment of Thomas Miller as head of North America sales and the appointment of Rebecca MacDonald as head of worldwide marketing. The additions are part of Zscaler’s larger strategy to expand the company’s management team with experienced leaders who can help guide the company’s rapid growth.

“Cloud and mobility have disrupted traditional enterprise security models, requiring a new, innovative, cloud-based approach for protecting corporate data and preventing web based threats,” said Phil Hochmuth, program manager for security products at market intelligence firm IDC. “With its global security cloud, large enterprise customer base and experienced leadership team, Zscaler is well-positioned to lead the evolution to cloud-based security architectures.”

Thomas Miller was previously the president of Trend USA and led the strategic planning, operations, and key growth initiatives for Trend Micro’s U.S. business unit. “The market for Internet security is being completely transformed by the forces of mobility, cloud applications and social media,” said Miller. “These changes demand a new approach, and Zscaler is the only security company “born cloud,” with a solution built from the ground up to address this new reality. Zscaler is the future of enterprise security, and I look forward to helping our customers embrace that future.”

MacDonald joins Zscaler from Attensity, where as vice president of marketing she helped reposition and guide the company’s rapid trajectory from a text analytics provider to a leading player in the Social CRM market. “I am excited to join Zscaler at such a pivotal time, and am looking forward to building upon the strong leadership position the company has established as a pioneer in cloud-delivered security,” said MacDonald.

“We are pleased to add experienced executives like Thomas and Rebecca to the Zscaler leadership team,” said Jay Chaudhry, CEO of Zscaler. “Their extensive experience combined with Zscaler’s game-changing technology will continue to fuel Zscaler’s strong growth and position as the leader in cloud-delivered security.”

About Zscaler

Zscaler is revolutionizing Internet security with the industry’s first Security as a Service platform. As the most innovative firm in the $35 billion security market, Zscaler is used by more than 5,000 leading organizations, including 50 of the Fortune 500. Zscaler ensures that more than 15 million users worldwide are protected against cyber attacks and data breaches while staying fully compliant with corporate and regulatory policies.

Zscaler is a Gartner Magic Quadrant leader for Secure Web Gateways and delivers a safe and productive Internet experience for every user, from any device and from any location — 100% in the cloud. With its multi-tenant, distributed cloud security platform, Zscaler effectively moves security into the internet backbone, operating in more than 100 data centers around the world and enabling organizations to fully leverage the promise of cloud and mobile computing with unparalleled and uncompromising protection and performance. Zscaler delivers unified, carrier-grade internet security, next generation firewall, web security, sandboxing/advanced persistent threat (APT) protection, data loss prevention, SSL inspection, traffic shaping, policy management and threat intelligence—all without the need for on-premise hardware, appliances or software. To learn more, visit us at

Additional Resources:

Media Contacts:

Whitney Black 
Director of Communications