Aladdin Knowledge Systems Announces Date of Third Quarter 2006 Financial Results Release, Conference Call and Webcast

TEL AVIV, ISRAEL, October 9, 2006, - Aladdin Knowledge Systems, Ltd. (NASDAQ: ALDN) will release financial results for the third quarter ended September 30, 2006 before the opening of trading in New York on Monday, October 23, 2006. The financial results will be released over the news wires and will also be posted to the Aladdin Web site.

Mr. Yanki Margalit, Chief Executive Officer, and Ms. Efrat Makov, Chief Financial Officer, will host a conference call, to be simultaneously Webcast, on Monday, October 23, 2006 at the times indicated below. A question and answer session will follow management's presentation. To participate, please call the following teleconferencing numbers. Please begin placing your calls five minutes before the hour:

Phone Number + 1 (800) 399-0427 (North America)
Phone Number +1 (706) 643-1624 (International)

Monday, October 23, 2006
At:
9:00 a.m. Eastern
8:00 a.m. Central
7:00 a.m. Mountain
6:00 a.m. Pacific
3:00 p.m. Israel

A live Webcast of the conference call 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.

For those unable to participate in the call, a replay will be available from October 23, 2006 at 11:00 a.m. Eastern, through October 30, 2006 at 11:59 p.m. Eastern. Please call:

Phone Number +1 (800) 642 - 1687 (North America)
Phone Number +1 (706) 645 - 9291 (International)
Access Code: 8169235

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 Aladdin's ability to forecast its revenues and net profits for the second quarter ended June 30, 2006 and possible discrepancies between the preliminary results and the final results to be announced, 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 including those described in the company's Annual Report on Form 20-F for the period ended December 31, 2005, which is available from Aladdin's website (www.aladdin.com) or from the SEC's website (www.sec.gov), and in news releases and other communications. Aladdin cautions that its anticipated results are preliminary, based on the best information currently available, and subject to the closing of its financial records and customary quarterly accounting procedures. Aladdin disclaims any intention or duty to update any forward-looking statements made in this news release.

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