Aladdin Knowledge Systems Announces Date of First Quarter 2008 Results, Conference Call and Webcast

TEL AVIV, ISRAEL, 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.

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