Mr. Jacob (Yanki) Margalit, Chairman & CEO of Aladdin Knowledge Systems Ltd.,
Ring The NASDAQ Stock Market Opening Bell

Tuesday, May 16, 2006
at NASDAQ's MarketSite
in New York City.

Aladdin Knowledge Systems Ltd. [ALDN]

Mr. Jacob (Yanki) Margalit, Chairman & CEO of Aladdin Knowledge Systems Ltd. (Nasdaq: ALDN) presides over the opening bell to celebrate its 20 year business anniversary.

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 http://www.Aladdin.com.

Click for larger pictures of the NASDAQ MarketSite. Additional Photographs for 5/16/2006 Download Hi-Res Quality Photo of this NASDAQ Market Open - Pictured: >Dr. Mark Bristow, CEO of Randgold Resources Limited, rings the Opening Bell These photos are Copyright 2006, The Nasdaq Stock Market Inc. and available for re-publication by the news media only. Any commercial use is strictly prohibited without the prior written consent of The Nasdaq Stock Market Inc. © Copyright 2006, The NASDAQ Stock Market, Inc. Reprinted with the permission of The Nasdaq Stock Market, Inc.