Aladdin to Host 2005 Analyst Day in New York

Management presentations to be Webcast live

TEL AVIV, ISRAEL, November 15, 2005 - Aladdin Knowledge Systems Ltd. (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 (Enterprise Security), today announced that it will host its second annual analyst day in New York on Wednesday, November 16 from 8:30 AM to 12:30 PM ET.

Speakers at the analyst day will include Mr. Yanki Margalit, chief executive officer, Ms. Efrat Makov, chief financial officer, the vice presidents of HASP, eSafe and eToken Business Units and the vice president of marketing. Aladdin management will update on the company"s markets, significant business trends, new product technologies and initiatives.

A live Webcast of the presentations will be available on the Aladdin Web site at www.Aladdin.com. Please visit the Web site at least 15 minutes early to register for the Webcast and download any necessary audio software.

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.

Safe Harbor Statement

Certain information presented herein constitutes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements are subject to known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of the company to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. Such factors include general economic and business conditions, the loss of market share, changes in the competitive landscape and other factors over which the company has little or no control.

©2002-2005 Aladdin Knowledge Systems, Ltd. All rights reserved. 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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