Santa Clara, CALIF. — July 8, 2003 - Sanctum, Inc., the established leader in automated Web application security firewall and testing software, today announced that the U.S. Patent and Trademark Office has issued the company U.S. Patent No. 6,584,569 titled "System for Determining Web Application Vulnerabilities" for the AppScan� product family. The most comprehensive technology patent for Web application vulnerability assessment to date, the AppScan patent covers the product's core functionalities to explore and learn the behavior of each Web application; build a customized scan to test for application-specific vulnerabilities (ASVs) and common web vulnerabilities (CWVs) found within applications written on any Web application development platform including the Microsoft� .NET� Framework and J2EE environments; execute attack variations against target applications; and provide detailed reporting that includes actionable recommendations for fixing the vulnerabilities. The patent validates AppScan's unique ability to detect dynamic application-specific vulnerabilities such as cross-site scripting, SQL injection and parameter tampering.

Introduced in 2000 as the industry's first Web application vulnerability assessment solution for security auditors, AppScan today drives security through the entire application lifecycle--development, quality assurance and deployment--for application developers, quality assurance testers as well as auditors. In addition to the newly awarded patent, Sanctum holds a patent for its Dynamic Policy Recognition Engine (DPRE) (U.S. Patent No. 6,311,278), a core technology used in both AppScan and AppShield� products that automatically and continuously defines policy for Web sites without the use of signatures or rules, enforcing the intended business behavior of Web applications.

"With the rights granted under the two patents, AppScan and DPRE, Sanctum currently owns the most comprehensive and in-depth intellectual property in the Web application security market. This unique status in the market clearly reflects Sanctum's leadership and innovative approach to Web application security," said Peggy Weigle, chief executive officer, Sanctum. "We are thrilled to see AppScan's continued market adoption, as it is an indispensable tool for enterprises to build secure, quality Web applications and fix the vulnerabilities before they pose significant threats to the safety of corporate data."

AppScan 3.5, a standalone application running on Microsoft Windows 2000, brings the combination of speed, accuracy, flexibility and efficiency to the QA testing and audit functions. Building upon the success of AppScan, Sanctum introduced in 2003 AppScan Developer Edition� (DE), the only automated testing tool designed for application developers to build secure, quality applications within Microsoft .NET Framework or Java� development environments. Already integrated into Microsoft Visual Studio� .NET, AppScan DE 1.7 now extends secure application development to major Integrated Development Environments (IDEs), including: Microsoft Visual Basic� 6.0, Borland� JBuilder,� IBM� WebSphere� Studio Application Developer and Eclipse.

The rights granted under this patent are effective June 24, 2003.

About Sanctum, Inc.
Founded in 1997 and headquartered in Santa Clara, Calif., Sanctum, Inc. is the recognized leader for Web application security solutions. Sanctum software solutions provide automatic enforcement of intended business processes, ensuring the protection of core information and data. 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 solutions complete a company's security infrastructure, assure regulatory compliance and create sustainable ROI. Sanctum's customers include industry leaders in finance, retailing, healthcare, government and telecommunications. Privately held, Sanctum is funded by blue-chip venture capital firms and industry leaders including Sprout Group, Dell, Gemini Israel Funds, Fidelity Ventures, Wachovia Strategic Ventures Group, Mofet Israel Technology Fund and Walden Israel. For more information, visit www.SanctumInc.com or contact the Company directly at (408) 352-2000.

For Immediate Release

Contact:

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

Tara Dugan or Annie Kim
(415) 512-0770
[email protected]