PRESS RELEASE : September 20, 2004

Voltage Security Co-Founder and CTO, Guido Appenzeller, Named Top Young Innovator by Technology Review Magazine

Palo Alto, CA—September 20, 2004---Voltage Security, Inc., a leading provider of secure business communication solutions, today announced that Guido Appenzeller, co-founder and Chief Technology Officer of Voltage, has been named to the 2004 list of the world’s 100 Top Young Innovators by TechnologyReview, MIT’s Magazine of Innovation.  The TR100, chosen by the editors of Technology Review and an elite panel of judges, consists of 100 individuals under age 35 whose innovative work in technology has a profound impact on today’s world.

 Appenzeller was chosen for his contribution to the founding of Voltage Security and for his research as a doctorate candidate at Stanford University. Voltage Security’s award-winning secure business communication solutions are based on Identity-Based Encryption (IBE), a simple alternative to PKI which secures content and messaging with the use of a common identity, such as an email address. Voltage was founded in 2002 by Appenzeller, Matt Pauker and Rishi Kacker, also previously Stanford students, and Dr. Dan Boneh, professor at Stanford and a director of Voltage. Appenzeller is also being awarded his Ph.D. by the Stanford University Computer Science Department for his research in advanced router and networking technology.

“We are extremely proud of Guido; winning this prestigious award is truly a significant achievement,” said Sathvik Krishnamurthy, CEO of Voltage. “This award reflects Guido’s ongoing commitment to finding the synergy between new technology and business opportunity. Guido’s leadership as CTO of Voltage  continues to help guide us in the development of innovative solutions for our customers.”

"Guido continues the Stanford tradition of successful start-ups that are built on ground-breaking new technology developed in the computer science department. We are proud of his contributions and are honored by his inclusion in the TR100,” said Hector Garcia-Molina, chairman, Department of Computer Science, Stanford University.

"The School of Engineering at Stanford prides itself on its world-class
research and the entrepreneurial prowess of our students.  We are delighted at the
recognition of Guido Appenzeller as someone who excels in both research and innovation. We have no doubt that he will continue to do so,” said Nick McKeown, professor of electrical engineering and computer science at Stanford University.

More about the TR100

The 2004 TR100’s unparalleled panel of judges includes senior executives from the following organizations:

Boston University, Caltech, Cambridge University, CombinatoRx, Concept2Company, Cornell University, General Electric, Geekcorps, Georgia Tech, Harvard Medical School, Hewlett-Packard, IBM, Intellectual Ventures, Microsoft, MIT, Northwestern University, PureTech Ventures, Singapore Institute of Bioengineering and Nanotechnology, TIAX, Wharton, Xerox, and YankeeTek Ventures.

TR 100 winners will be honored September 29 - 30 at Technology Review’s Emerging Technologies Conference at MIT. The event features keynotes, panels and breakout discussions on the transformative technological innovations that have the potential to fuel new economic growth and dramatically change the future. Keynote speakers include Vinod Khosla, founding CEO of Sun Microsystems and General Partner at Kleiner, Perkins, Caufield & Byers; Ray Kurzweil, renowned inventor, author and founder of Kurzweil Technologies; and Rick Wagoner, chairman of General Motors. More information on ETC2004 can be found at www.tretc.com.

About Technology Review, Inc.

Technology Review, Inc., an MIT Enterprise, delivers essential information about emerging technologies and their impact on leaders.  Since 1998, paid U.S. circulation for the company's magazine, Technology Review, has more than tripled, climbing from 92,000 to 315,000.  With foreign editions recently launched in China, Italy, Germany and The Netherlands, the exposure of Technology Review magazine, combined with the company's signature events, newsletters, and online businesses, reaches over two million business leaders throughout the world each month.

About Voltage Security
Voltage Security, Inc. provides the market leading Voltage Enterprise Privacy Management Platform™, a breakthrough foundation for securing all forms of digital business communication flowing into and outside an organization. Based on a revolutionary breakthrough called IBE, or Identity-Based Encryption, the Voltage Enterprise Privacy Management Platform greatly simplifies the use and administration of traditional security systems. Voltage Security markets its own enterprise solutions including the Voltage SecureMail Gateway™, Voltage SecureMail™ and secure mobile messaging solutions for RIMs BlackBerry® and Microsoft Windows Mobile-based Pocket PCs and Smartphones, and partners with other leading companies such as CipherTrust, FrontBridge Technologies (a Microsoft company) and Proofpoint to serve the expanded security needs of the enterprise. Third-party and corporate developers can secure customer applications with the Voltage IBE Toolkit™. Voltage Security customers include leading corporations and governmental agencies from around the globe including XL Global Services, Waterfield Mortgage, QVC Japan and Hitachi.

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Voltage Security, Voltage SecurePolicy Suite, Voltage SecureMail and Voltage SecureFile are either trademarks or registered trademarks of Voltage Security, Inc.