San Francisco, Calif. - April 9, 2001 - Argus Systems Group, the global leader in Intrusion Prevention Systems, today announced a partnership with Sanctum, Inc., the established leader in automated Web application control and security software, and Protegrity Inc., the leading provider of privacy solutions that protect database information, to offer joint customers an industrial strength solution to secure their ebusiness, confidential data and back-end transaction systems with the highest security available in the market.

PitBull, Argus's flagship product, is an intrusion prevention system designed to deliver security where it is needed most-within the operating systems that control the most sensitive ebusiness servers. PitBull protects critical servers from malicious attack to steal proprietary information or monetary assets, violate consumer privacy protections, and otherwise tamper with system and data resources. While Sanctum's AppShield™ provides the full autonomous online defense against any type of Web application-level attack, Protegrity's Secure.Data™ actively protects confidential information within databases through its unique encryption technology. Together the combined solution provides customers with true end-to-end security protecting Web-facing servers, Web applications, and back-end databases housing sensitive customer information.

"An unprotected Web server can be used as a portal into the organization's mission-critical back-end systems," said Diane Fraiman, vice president of marketing at Sanctum Inc. "Sanctum's AppShield™ is the first proactive solution to protect Web sites by automatically detecting and blocking any type of application manipulation through the browser. Through our partnership with Argus and Protegrity, we have elevated Web security to the next level, providing the strongest security framework in the market."

"Our clients require the most progressive and advanced security solutions-ones that will meet and exceed evolving business requirements and increasingly sophisticated threats," said Peter Nilsson, senior vice president and CIO of Protegrity, Inc. "Delivering our one-of-a-kind data-privacy solution along with the complementary and leading technologies from Argus Systems and Sanctum provides a first-rate, comprehensive solution for our mutual customers."

"With these best-of-breed partners, we feel confident that together we are delivering a security solution that is unprecedented and unique in the marketplace," said Loren Warburg, vice president of strategic partner development at Argus Systems. "Companies demand ever increasing levels of security to protect all aspects of their ebusiness architecture. This alliance is uniquely capable of offering these companies technically robust and seamlessly interoperable solutions with world-class security expertise."

About Sanctum, Inc.
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 monitor how individuals interact with Web applications. By detecting and defending against any unauthorized behavior, Sanctum prevents application perversion, even if a site has unknown security holes or flaws. Sanctum's customers include industry leaders in banking, retailing, finance, government and healthcare. 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) 352-2000.

About Protegrity
Protegrity provides unique information-privacy solutions that protect Franchise Data™. The company's security products and services enable clients to selectively target sensitive information within databases and protect it from internal or external threats. Protegrity is headquartered in Stamford, Conn., with sales, development and support centers throughout the U.S. and Europe. More information about the company is available on its Web site at www.protegrity.com.

About Argus Systems Group, Inc.
Argus Systems Group, Inc., a privately held company headquartered in Savoy, Ill., offers a full suite of e-business security solutions and applications. Argus is committed to providing state-of-the-art security solutions for emerging next economy environments. Argus supplies the only certified Intrusion Prevention System solution available to support multiple platforms, from single processor systems to enterprise server. For more information about Argus Systems Group, visit the Company's web site at www.argus-systems.com.

For Immediate Release
Contact:

Diane Fraiman
Sanctum, Inc.
(408) 352-2000
[email protected]

Laura Schiavi
Protegrity, Inc.
(203) 326-7220
[email protected]