Unisys to Deploy 28,000 Aladdin eToken Smart Cards for Integrated Physical/Data Access

CHICAGO, April 9, 2007 - Aladdin Knowledge Systems Ltd.
(NASDAQ: ALDN), the leader in Software DRM, strong authentication and content security solutions, today announced that Unisys Corporation (NYSE: UIS), a worldwide technology services and solutions company, will deploy more than 28,000 Aladdin eToken smart cards to provide employees with integrated physical/data access.

Scheduled for eventual deployment at 300 of Unisys' worldwide facilities, Aladdin eToken smart cards (about the size a typical credit card) serve an efficient, dual role for employees, allowing them to use the eToken smart card to gain physical access to offices while also using the same eToken smart card for Windows Network Logon. The integrated authentication solution illustrates the efficiency that can be gained by maximizing the flexibility and power of eToken smart cards solutions.

"We selected Aladdin eToken for widespread deployment at Unisys because of its proven reliability and high performance during extensive testing and evaluation," said John D. Frymier, director of information security, Unisys. "Convenience, performance, seamless integration and ease of use are critical, since thousands of employees with digital credentials will use them to enter a Unisys facility and log on to the network. This integrated solution maximizes the use of smart card technology, creating a streamlined tool that provides a simple and consistent layer of security."

For more information on Aladdin eToken, 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.

©2007 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.

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