SANTA CLARA, CALIF. and TOKYO, JAPAN - May 29, 2001 - Sanctum, Inc., the established leader in Web application control and security software, today announced global expansion through a partnership with the Hitachi Information Network, Ltd. (HINET). A leading solution provider to the enterprise network systems market, HINET will extend distribution of Sanctum's AppShield 3.0 to Japan, enabling more companies worldwide to effectively protect the most vulnerable layer of their eBusiness, the Web application.

"Computer intrusion and malicious cybercriminal activity is an international problem that business executives need to take more seriously," said Peggy Weigle, CEO of Sanctum. "Hitachi's distribution of Sanctum's AppShield in one of the world's leading markets is a necessary first step towards recognition and adoption of preventative security measures at the application level. Through this partnership and subsequent global expansion, Sanctum will solidify its leadership position in the Web application security industry."

HINET will work with Sanctum to distribute AppShield licenses to its Japanese customer base, as well as provide further engineering support and localized product development. The first and only solution to provide eBusinesses and service providers with around-the-clock, automatic protection against Web application attacks, AppShield secures Web sites by detecting, blocking, logging and alerting administrators to any type of Web-enabled security breach. AppShield enables enterprises to focus developer resources on new products and services rather than debugging and patching existing applications.

"In January and February of 2001, more than 200 Japanese Web sites, including global companies, financial and government institutions, and universities, fell prey to Web site defacements," said Mr. Kobaysashi, President of Hitachi Information Network, Ltd. "In order to defend against all types of Web application-enabled breaches, including data theft, e-commerce fraud and site defacements, businesses must take a proactive security stance to address the threat and prevent the problem before it's too late. Sanctum's AppShield complements HINET's current product offering, extending our security solutions beyond the network, to the application itself."

"eBusiness application security is an ongoing problem that remains virtually untapped, both in the U.S. and internationally,' said Pete Lindstrom, senior analyst for Hurwitz Group. "Although malicious Web security breaches are on the rise, companies are still not devoting enough time and resources to secure every level of the eBusiness, from the network to the application. With Sanctum's AppShield, Hitachi will be able to deliver eBusiness application security solutions to the Japanese market, offering global companies a new way to defend against browser-launched cybercrime."

Sanctum and HINET will jointly present the new product offering at next week's Network + Interop 2001 Tokyo event, Makuhari Messe (Nippon Convention Center). For more information on the partnership, visit the HINET booth (#8A13) during the show, June 6 - June 8, 2001.

About Hitachi Information Network (www.hinet.co.jp)
Hitachi Information Network, Ltd. (HINET), part of the Hitachi Group, is a leading solution provider to the enterprise network systems market. HINET provides end-to-end total solutions for its customers by implementing state-of-the-art infrastructure products, including enterprise application, network infrastructure and data center services. HINET is headquartered in Tokyo, Japan. For more information, please visit www.hinet.co.jp.

About Sanctum, Inc. (www.SanctumInc.com)
Founded in 1997 and headquartered in Santa Clara, Calif., Sanctum, Inc. pioneered the market for Web application security and control software. Sanctum software works autonomously and continuously to prevent individuals from manipulating Web applications. By detecting and defending against any unauthorized behavior, Sanctum protects customers against malicious cybercriminal activity-from theft of intellectual property and customer data to e-commerce fraud and Web site defacement-even if a site has unknown security holes or flaws. Sanctum's customers include industry leaders in banking, retailing, finance, government and telecommunications. Privately held, Sanctum is funded by blue-chip venture capital firms and industry leaders including Sequoia Capital, Walden, Sprout Group and Intel Corporation. More information about Sanctum may be obtained by visiting the Company's Web site www.SanctumInc.com or by calling the Company directly at (408) 855-9500.

For Immediate Release
Contact:

Tara Dugan or Elizabeth Holwerda
Schwartz Communications, Inc.
(415) 512-0770
[email protected]

Takashi Fujimoto or Tadayuki Nakamura
Hitachi Information Network, Ltd.
+81-3-5763-0184
[email protected]