Aladdin eSafe First to Offer Dual Engine Protection from Spam and Malware

CHICAGO, March 3, 2008 - Aladdin Knowledge Systems Ltd.
(NASDAQ: ALDN), an information security leader specializing in authentication, software DRM and content security, today announced the release of Aladdin eSafe 6 Feature Release 2. This latest version of Aladdin eSafe features dual anti-spam engines for zero-hour, best-of-breed anti-spam and malware outbreak prevention, in addition to enhanced content security.

Aladdin eSafe is the first to combine the world's best real-time reputation and deep content analysis technologies in one dual-engine solution, providing zero-hour spam sender reputation and malware analysis as well as real-time content analysis. All email traffic is checked against a continuously updated spam and spyware database for the most up-to-date protection available. Enterprises can now enjoy the most complete spam and malware detection solution, which is equally effective in any language or email format.

The first anti-spam engine performs real-time sender reputation and distribution patterns analysis, monitoring traffic worldwide at ISP and other key email transfer locations to identify new spam and malware outbreaks as soon as they emerge. For emails from senders not catalogued in a local spam signatures database, Aladdin eSafe sends and receives a reputation query in real-time, classifying the email and blocking harmful senders. Aladdin eSafe proactively checks any mass distributed email - spam, fraud, phishing or malware - without blocking legitimate emails such as newsletters and mailing lists.

Performing simultaneous content analysis, the second engine prevents spam on three levels: phishing, fingerprint or fuzzy fingerprint. A combination of user-selected methods, some of which include smart signature matching, text analysis, URL categories and meta-heuristics, determine if incoming email is any form of phishing. Aladdin eSafe v6 Feature Release 2 checks emails against known spam characteristics, like matching a criminal's fingerprint, as well as looking for corrupted or modified image files- "fuzzy fingerprint." Fuzzy fingerprint analysis detects a "unique" spam message that is at least 10 percent different from any other spam message ever received, but still contains enough similar characteristics to be identifiable. Similarities include spam content as well as patterns of distribution, including the originating country, common subject lines, the host Web site and the path of the e-mail.

"Aladdin eSafe 6 Feature Release 2 offers the most comprehensive email security available today," said Tsion Gonen, vice president of the Aladdin eSafe Business Unit. "Functions that normally require two or three products are automatically covered by Aladdin eSafe's dual engines, protecting enterprises from spam and malware with one integrated solution."

This latest version of Aladdin eSafe also offers enterprises unique security by stripping meta-data from MS Office attachments to prevent exposure of hidden, confidential information embedded in Office files, including revisions and collaboration information, preventing incidents before they happen.

About Aladdin eSafe
Aladdin eSafe protects against Web-based malware and zero-day threats through an in-line, wire-speed secure Web gateway featuring powerful anti-spyware, application level controls, and URL filtering. eSafe also controls spam and inspects SMTP and POP3 traffic though a proactive email security gateway. Visit www.Aladdin.com/eSafe.

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. eSafe and 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.