TEL AVIV, ISRAEL–( EMWNews – April 2, 2008) – Aladdin

Knowledge Systems Ltd. (NASDAQ: ALDN), an information security leader

specializing in authentication, software DRM and content security, today

announced it will release financial results for the first quarter ended

March 31, 2008 before the opening of trading in New York on Monday, April

21, 2008. The financial results will be released over the news wires and

will also be posted to the Aladdin Web site.

The Company will host a conference call, to be simultaneously Webcast, on

Monday, April 21, 2008 at 9:00 a.m. Eastern Time / 4:00 p.m. Israel Time. A

question and answer session will follow management’s presentation. To

participate, please call the following numbers 10 minutes before the hour:

Phone Number + 1 (888) 668-9141 (North America)

Phone Number +972 (3) 918 0610 (International)

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.

A replay of the call will be available until May 20, 2008 at 11:59 p.m.

Eastern Time. Please call:

Phone Number +1 (888) 782-4291 (North America)

Phone Number +972 (3) 925-5943 (International)

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. 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.