Santa Clara, Calif. — May 13, 2002 - Sanctum, Inc., the established leader in Web application security software, today announced that Adecco SA has implemented Sanctum's Web application firewall, AppShield, to secure the Web applications of the company's worldwide Internet-based operations. As the world's largest staffing and recruiting organization, the Adecco network spans over one million clients and employees through almost 6,000 offices. To address increasing Web application security concerns, Adecco chose AppShield to protect its e-commerce transactions, employee training and private data from malicious manipulation and unauthorized access.

"With operations in over 59 countries and subsidiary Web sites worldwide, Adecco relies on the speed and efficiency of the Internet to enact business. At the same time, we are mindful of the value of security and the necessity of protecting our Web-enabled applications," explained Alwin Brunner, Group CTO, Adecco SA. "We chose Sanctum's AppShield because it is quick to implement and easy-to-use. AppShield provides a secure way to integrate any existing Web applications into our Web hosting platform without compromising the security of the other solutions hosted on the same platform."

AppShield, Sanctum's next generation Web application firewall, maintains application behavior 24/7 without the overhead of signatures or rules. The first and only application firewall built on a positive security model, AppShield automatically and intelligently identifies the legitimate requests made of an e-business site and permits only those actions to take place that enforce the Web and business logic of the site. AppShield's rapid deployment into any Internet infrastructure, combined with its enterprise manageability and comprehensive application forensics, ensures that an e-business is getting maximum application-level security fast. With AppShield in place, organizations are defended against any type of application manipulation through the browser, including both known and unknown attacks by hackers, worms and other imminent security threats.

"With the amount of key data accessible through the Internet and the increasing threat of Web application attacks, Web application security has been established as a critical component of any e-business operation," said Richard Parkinson, Managing Director, Sanctum Europe, Ltd. "As new Web server vulnerabilities continue to be announced, companies are forced to rely on vendor alerts and install patches to secure their Web sites. By alternately employing an automatic and intelligent defense against any Web application threat, enterprises can focus time and resources on business operations."

About Adecco S A
Adecco SA is a Forbes 500 company and the global leader in HR Solutions. The Adecco network connects up to 700,000 associates with business clients each day through its network of over 30,000 employees and close to 6,000 offices in 59 countries around the world. Registered in Switzerland, and managed by a multinational team with expertise in markets spanning the globe, Adecco delivers an unparalleled range of flexible staffing and career resources to corporate clients and qualified associates.

The Group comprises of three Divisions, Adecco Staffing, Ajilon Staffing & Managed Services;and Career Servicese-Business: In Adecco Staffing, the Adecco staffing network focuses on flexible staffing solutions for global industries in transition, including automotive, banking, electronics, logistics and telecommunications; Ajilon Staffing and Managed Services offers an unrivalled range of specialised branded businesses; Career Services/e-Business encompasses our portfolio of e-recruiting, executive search and outplacement businesses.

Adecco SA is registered in Switzerland and is listed on the Swiss Exchange (ADEN / trading on Virt-x: 1213860), NYSE (ADO), Euronext Premier March� (12819).

About Sanctum, Inc. (www.SanctumInc.com)
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:

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