Chicago, March 20, 2001— Building on its security leadership in Internet infrastructure, Telenisus Corporation has introduced a Web application testing service that helps customers manage and actively secure information assets.

Through a partnership with Sanctum Inc., Telenisus has integrated Sanctum's AppScan application vulnerability assessment tool into its new Telenisus WebRecon service.

With WebRecon, Telenisus is the first managed hosting provider offering customers a security audit that extends protection beyond infrastructure to hosted applications.

"Try as they might, ordinary hosting companies typically struggle just to keep up with physical and network security, let alone go beyond that to securing the application layer. But at Telenisus, where information security is a passion, we are the first to combine a fully secure hosting infrastructure with the ability to detect application vulnerabilities," said Steve Hoffman, director of product management, Telenisus.

"Even with the most carefully architected infrastructure, your company's digital assets aren't necessarily safe unless the applications themselves are free of vulnerabilities. It is like leaving a window open despite having steel doors and alarms at your house. Telenisus WebRecon now shuts that window of vulnerability."

Telenisus WebRecon is offered through an agreement with Sanctum Inc., the pioneer in Web application security and control software. Telenisus' professional services security consultants will use Sanctum's AppScan product to audit all customers' application software, including custom and packaged applications, for security vulnerabilities. Assessing specific applications from a hacker's perspective, Telenisus then will provide recommendations for fixing security vulnerabilities, including the latest patches available.

The first WebRecon is provided free of charge to every customer of WebStructure by Telenisus or Telenisus Managed Hosting Service. Subsequent WebRecon scans will be provided for a one-time charge for each.

"Sanctum's AppScan is a perfect complement to Telenisus' security assessment and vulnerability services," said Diane Fraiman, Sanctum's vice president of marketing. "It allows the most comprehensive analysis and recommendations on security risks to be generated in a fraction of time versus traditional manual patching. AppScan 2.0 will ultimately provide Telenisus' customers protection specifically at the application level where many businesses are wide open to attack."

As the first managed service provider performing application security audits, Telenisus automates a completely manual audit process that today devours time and money, and is only as effective as the person conducting the audit. The combination of WebRecon and Telenisus' Sanctum-certified professional services security consultants give customers a powerful service not previously available in the managed hosting market.

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's software works autonomously and continuously to monitor how individuals interact with Web applications. By detecting and defending against any unauthorized behavior, Sanctum prevents Web 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 and Intel Corporation. More information about Sanctum may be obtained by visiting the Company's Web site at www.SanctumInc.com or by calling the Company directly at (408) 352-2000.

About Telenisus
Telenisus Corporation ( www.telenisus.com) is a managed Internet infrastructure service provider, helping customers conduct business securely over the Internet. Its primary offering, WebStructure by Telenisus, is a comprehensive suite of services-managed hosting, managed information security, managed virtual private networking-delivered through Telenisus' automated Built for e-Business™ service delivery platform, protected by a patent-pending multi-tier security architecture and backed by deep subject matter expertise. The privately held company, founded in June 1999, is headquartered in Rolling Meadows, Ill., a Chicago suburb.

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