Aladdin Chief Cryptographer to Speak at CSI SX Conference

CHICAGO, April 22, 2008 - Aladdin Knowledge Systems Ltd. (NASDAQ: ALDN), an information security leader specializing in authentication, software DRM and content security, today announced that Chief Cryptographer Andrew Lindell will present a technical session at the CSI SX: Security Exchange on Tuesday, April 29th at 11 AM.

In his session, "Private Data Mining and Citizens' Rights," Lindell will present a cryptographer's view of the tension between homeland security needs and the privacy rights of individuals, and will show how advanced cryptographic techniques can enable complex data mining tasks while preserving citizens' privacy. An open forum will follow where attendees will be invited to discuss the social and technical implications of national security and Constitutional rights.

Co-located with Interop Las Vegas and Software 2008, CSI SX will take place April 27 - May 2, 2008 at the Mandalay Bay resort in Las Vegas, Nevada. Speakers to CSI SX are chosen to participate by invitation only and are pioneers in their fields. For full conference details, visit www.csisx.com.

An internationally recognized thought leader, Lindell serves as Chief Cryptographer at Aladdin Knowledge Systems and an Assistant Professor at Bar-Ilan University in Israel. Lindell attained a Ph.D. at the Weizmann Institute of Science in 2002 and spent two years at the IBM T.J.Watson research lab as a Postdoctoral fellow in the cryptography research group. Lindell has carried out extensive research in cryptography, and has published more than 50 conference and journal publications. In addition, Lindell has published two books on the subject: the first titled "Composition of Secure Multi-Party Protocols," and the second an undergraduate textbook titled "Introduction to Modern Cryptography."

Lindell has presented at numerous international conferences, workshops and university seminars including the RSA Security Conference, CSI Conference, the West Coast Security Forum and Black Hat Briefings, and has served on program committees for top international conferences in cryptography. In 2004, Lindell joined Aladdin Knowledge Systems as Chief Cryptographer, where he has focused on the cryptographic and security issues that arise in the design and construction of authentication schemes, smartcard applications, software protection schemes and more. Offering a unique combination of academic and industry experience, Lindell brings a fresh and insightful perspective on many of today's crucial security issues.

About CSI SX 2008

CSI SX: Security Exchange offers a unique opportunity to meet and interact with security experts and peers in a collaborative and intimate setting. Discussions at SX look beyond the surface and give you real and proven solutions-strategy, policy and technical-that will work in your organization. Formerly NetSec, CSI SX is now co-located with Interop and Software 2008, allowing access to the Interop Exhibition of over 500 exhibitors and the option to attend all three events. For more information, visit www.csisx.com.

About Aladdin

Aladdin Knowledge Systems' Software Rights Management products are the #1 choice of software developers and publishers to protect intellectual property, increase revenues, and reduce losses from software piracy. Aladdin eToken is the world's #1 USB-based authentication solution. The Aladdin eSafe secure Web gateway provides the most advanced protection against the latest Web-based threats and attacks. Aladdin has offices in 12 countries, a worldwide network of channel partners, and has won numerous awards for innovation. For more information, visit the Aladdin Web site at www.Aladdin.com.

©2008 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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