PRESS RELEASE: July 8, 2003

Voltage Security Announces Alliance with NeuStar to Provide High Assurance Managed Security Services

Identity-Based Encryption Technology and Proven Network Identity Service Combine to Enable a New Class of Identity-Driven Security

Palo Alto, CA., July 8, 2003--Voltage Security, Inc., a new information security software company, today announced an alliance with NeuStar, Inc., the leading neutral third party provider of mission-critical network identity clearinghouse services, to provide a fully integrated managed security service. Based on Voltage's breakthrough cryptography technology, Identity-Based Encryption (IBE), and NeuStar's network identity clearinghouse suite of services, NeuLiberty, the new service will provide enterprise and mid-market customers with turn-key high assurance managed security services.

With the Voltage Security platform, customers can protect business communication by using identities such as a well-known email, phone number or IP address, instead of the pre-generated, cumbersome public-private key pairs and digital certificates required in existing solutions. Technical details of IBE are provided in a white paper entitled Identity-Based Encryption from the Weil Pairing, by Dr. Dan Boneh of Stanford University and Dr. Matthew Franklin of the University of California at Davis and a member of the Voltage Security Advisory Board, at www.voltage.com.

We are able to offer our customers a fully managed security service by partnering with NeuStar, a company that offers and enables proven turn-key usage-based clearinghouse services for identity information exchange. This is a great foundation for expanding our partnership to encompass additional managed service offerings, said Sathvik Krishnamurthy, president and CEO of Voltage.

We are excited about the opportunity to work with Voltage. Together, we will enable the deployment of new highly differentiated applications for secure communication, using the Voltage Security platform and NeuStar's NeuLiberty suite of services, said Mark Foster, Senior Vice President and Chief Technology Officer, NeuStar.

Integrated Services to be Offered

Voltage and NeuStar will offer a fully integrated managed service. The Voltage Security platform offers the following benefits:

Secure anytime, anywhere communication. Users can encrypt and decrypt communication and information, online and offline, anywhere in the world with transparent roaming.
Self-provisioning. No pre-enrollment of recipients is needed to send secure ad hoc communication, unlike existing solutions.
Ease-of-use. Users can transparently send and receive secure communication without changing their day-to-day behavior.
Ease-of-administration. The Voltage Security platform can be quickly implemented and centrally administered. No complicated archive solutions are required for keys or messages to ensure business continuity.
Low total-cost-of ownership (TCO). By leveraging well-known identities, such as an email address, the Voltage Security platform reduces complex infrastructure thus reducing overall costs.

For more information about the new service please contact either Voltage or NeuStar directly or visit www.voltage.com and/or www.neustar.biz.

About NeuStar's NeuLiberty Services

NeuStar is built on a foundation of trust and neutrality established over years securely and successfully managing critical registry and infrastructure services for the communication industry. These NeuStar services enable the routing of virtually every phone call dialed in North America; the management of the global top level Internet domains .US and .BIZ; the coordination of Operating Support Systems (OSS) between local and long distance providers; and effective numbering administration and optimization. Our foundation of trust has set the stage for NeuStar to be a leader in offering next generation infrastructure services including federated digital identity, and the convergence of voice and data networks. NeuStar is a sponsoring member of the Liberty Alliance. Visit www.neustar.biz for more information on NeuStar and its services.

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.

Editor's Note: Please see the Voltage Security news release dated July 8, 2003.

###

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