Aladdin eSafe Gains Three Checkmark Certifications

CHICAGO, December 21, 2006 - Aladdin Knowledge Systems Ltd.
(NASDAQ: ALDN), the leader in Software DRM, strong authentication and content security solutions, today announced its eSafe content security solution received three Checkmark certifications from West Coast Labs for Anti-Trojan, Gateway Anti-Spyware and Anti-Virus protection.

In order to gain all three Checkmark certifications, eSafe detected all viruses "In the Wild," as well as all Trojans, key-loggers, spyware and other assorted malware in the West Coast Labs Trojans and spyware test suites - without false positives.

In 2006, the threat vector shifted from email viruses to sophisticated Trojans and spyware that infect computers while browsing the Web. In many cases, infected computers become part of a malicious Botnets network controlled by criminals. Botnets are used today to send out spam and phishing emails, organize Denial-of-Service attacks and more. Web browsing security, protecting users against Spyware and Trojans, is of the utmost importance for organizations today. eSafe's latest Checkmark certifications assure its ability to deliver best of breed protection.

"Aladdin eSafe consistently performs during extensive testing, underscoring its comprehensive approach to gateway-based Web protection for organizations," said Chris Thomas, operations director of West Coast Labs. In February, eSafe received SC Magazine's "Best Anti-Trojan Solution" Award, further reinforcing its stance as a uniquely innovative content security solution.

"Through multiple Checkmark certifications, eSafe continues to leave its mark as a thorough, integrated content security solution for the gateway," said Shimon Gruper, vice president of technologies for the Aladdin eSafe Business Unit. "Given West Coast Labs' reputation of providing rigorous testing, we are proud to announce ongoing Checkmark recognition for the award-winning eSafe solution."

About Aladdin eSafe

Aladdin eSafe is a high capacity, perimeter-based, strong content security solution that provides organizations a transparent shield from threats and enhances productivity. eSafe enables organizations to supply secure Web surfing through a wire speed security gateway featuring powerful anti-spyware and unauthorized application filtering; reduce spam though a proactive email security gateway with advanced spam management; and improve security through URL filtering with transparent inspection of HTTP, FTP, SMTP and POP3. For more information, please visit www.Aladdin.com/eSafe.

About West Coast Labs

West Coast Labs is an independent organization which tests and validates the functionality and performance of information security products. West Coast Labs has also developed the Checkmark certification system into one of the world's foremost certification programs an integrated system of standards that are recognized around the world as reliable indicators of performance levels. Visit www.westcoastlabs.org.

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. eSafe, 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

####

All trademarks and registered trademarks are the property of their respective holders.