Aladdin eSafe Named a Finalist for SC Magazine's 2006 Awards

CHICAGO, November 21, 2005 - Aladdin Knowledge Systems (Nasdaq:ALDN), the worldwide leader in Software Digital Rights Management (DRM) and USB-based authentication solutions, and a leading innovator in enterprise secure content management, today announced that Aladdin eSafe, an integrated, proactive content security, spyware and virus protection solution for the Internet gateway, stands as a finalist for the "Best Anti-Trojan" category of the SC Awards 2006.

Considered the leading annual awards program for the information security industry, SC Magazine's SC Awards highlight the leading companies, products and services in the field. Winners will be announced during a gala event at the Fairmont Hotel in San Jose, California on February 14th.

"Aladdin eSafe continues to lead the industry with best-of-breed Web browsing security with anti-spyware and unauthorized application filtering," said Shimon Gruper, vice president of the Aladdin eSafe Business Unit. "Backed by 24x7 security services, Aladdin continues to provide unmatched, zero-day protection for top security threats. We are proud to have Aladdin eSafe recognized under the 'Best Anti-Trojan' award category for this year's SC Awards."

About SC Awards

With over 1,300 product and service nominations from over 330 competing companies globally, the SC Awards are the world's leading awards program for the information security industry. The SC Awards program spans US, Asia, and UK. The SC Awards are composed of both the Reader Trust Technology Awards-voted on by SC readers in each region and the SC Awards Council, a group of carefully selected senior CSOs-and the Professional Awards that are judged by a panel of the industry's top talents.

Recognizing technical excellence and professional achievement across a variety of different categories, the SC Awards is a truly unique program developed to bring attention to the industry's top products and highlight the professionals that have both created them and use them within their companies. These industry achievements are acknowledged during the exciting US Awards ceremony taking place this year at the Fairmont Hotel, San Jose on February 14th, 2006. For more information, visit www.scmagazine.com.

About Aladdin eSafe 5

Aladdin eSafe is an integrated gateway content security solution providing proactive email security and Web browsing security. As an in-line, transparent solution, eSafe offers the industry's highest content security performance, encompassing:

• Layered anti-spyware
• Spam management
• Application filtering
• Proactive anti-virus technologies

Unlike other products which focus on viruses, eSafe protects users and the enterprise from Web-borne content threats including spam, viruses, known and unknown worms, Trojans, Webpage malicious code, spyware, unauthorized P2P, Instant Messaging applications, and more. With eSafe, organizations take control before problems arise, saving valuable time as well as thousands of dollars in costly repairs, and providing content security where it counts most - at the gateway front line.

For more information on Aladdin eSafe, visit http://www.Aladdin.com/eSafe.

About Aladdin

Aladdin Knowledge Systems Ltd. is a global provider of security solutions that reduce software theft, authenticate network users and protect against unwanted Internet and e-mail content, including spam, viruses and spyware. Its security products are organized into two segments: Software Digital Rights Management (DRM) and Enterprise Security. Aladdin's Software DRM products allow software publishers to protect their intellectual property and increase revenues by reducing losses from software theft and piracy. Its Enterprise Security solutions enable organizations to secure their information technology assets by controlling who has access to their networks (authentication) and what content their users can utilize (content security). Visit the Aladdin Web site at www.Aladdin.com.

©2002-2005 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

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