Aladdin eToken To Support Microsoft’s Upcoming Windows Vista Operating System

New platform expected to foster greater adoption of USB-based strong authentication

CHICAGO, September 28, 2006 - Aladdin Knowledge Systems (Nasdaq:ALDN), the leader in Software DRM, identity management and content security solutions, today announced its Aladdin eToken strong user authentication and password management solution will offer support for Windows Vista™, Microsoft’s new operating system slated for release soon.

The USB smart-card-based eToken authentication solutions are scheduled to support Windows Vista following its eventual release date. eToken will integrate at all levels of Windows Vista, ensuring seamless integration for existing and future eToken customers looking to migrate to the latest Microsoft operating system while still employing strong authentication and powerful data security. Windows Vista provides added smart card support and flexibility that enhances the use of USB-based smart card authentication solutions, allowing for a more intuitive and simplified approach for an organization employing strong authentication for employees, partners or customers.

“Enterprise customers are moving to stronger authentication systems in response to increased security risks and regulatory requirements, and will benefit from the user authentication architecture improvements in Windows Vista,” said Phil Schacter, vice president and research director for the Burton Group. “However, it is equally important that vendors of stronger authentication technologies, such as Aladdin, are timely in their support to ensure that early adopters of Vista are not impacted by compatibility issues that result from the underlying architecture changes in Windows. The combination of a more secure Windows and well integrated authentication products from Aladdin and others will go a long way to accelerating the adoption and deployment of stronger authentication solutions in the enterprise customer market.”

“We are pleased to announce that Aladdin is set to provide support for Microsoft’s forthcoming Windows Vista operating system, as we expect this new platform to spawn significantly higher interest in simple, yet secure USB-based smart card strong authentication among enterprises worldwide,” said Shlomi Yanai, vice president of the Aladdin eToken Business Unit. “Aladdin’s commitment to supporting the latest platforms illustrates our ongoing goal of stellar customer service and innovation.”

About Aladdin eToken

Aladdin eToken is the world leader for USB-based authentication solutions. It provides strong user authentication and cost-effective password management solutions enabling organizations to easily and effectively expand business opportunities with secure network access, improve data security through enhanced encryption and digital signing, and reduce costs and vulnerabilities through superior password management. For more information, please visit www.Aladdin.com/eToken.

About Aladdin

Aladdin Knowledge Systems Ltd. (NASDAQ: ALDN), founded in 1985, is a global provider of security solutions. Its security products are organized into two segments: Software Digital Rights Management (DRM) and Enterprise Security. Aladdin’s Software DRM products allow software developers and publishers to protect their intellectual property, increase revenues through licensing, and reduce losses from software piracy. Aladdin’s Enterprise Security solutions enable organizations to secure their information technology assets by controlling who has access to their networks (identity and password management) and what content their users can utilize (proactive content security). Aladdin has offices in 10 countries, a worldwide network of channel partners and holds numerous industry awards for innovation and reliability. For more information, please visit the Aladdin Web site at www.Aladdin.com

©2002-2006 Aladdin Knowledge Systems, Ltd. All rights reserved. eToken, Aladdin Knowledge Systems and the Aladdin logo are trademarks or registered trademarks of Aladdin Knowledge Systems, Ltd. All other product and brand names mentioned in this document are trademarks or registered trademarks of their respective owners

Contact Information

Matthew Zintel

Press Contact

Zintel Public Relations

Contact via E-mail