Macro Terminator is the Ultimate in Proactive Protection Against New "Thursday" Virus

Seattle, Wash. – September 9, 1999- Aladdin Knowledge Systems, Inc. (NASDAQ: ALDN), a global leader in the field of Internet content security, is reminding its eSafe customers that Macro Terminator^TM is the first, proactive solution for protection against malicious MS Office Macro viruses such as the new "Thursday" (W97M.Thus.A) virus.

By using unique pattern-matching technology, Macro Terminator is capable of detecting, with a high degree of accuracy, macro viruses so new that they have not yet been individually analyzed. Because macro viruses are written in the high-level VBA (Visual Basic for Applications) language, it is possible to increase detection accuracy far beyond those levels found when dealing with older-style, machine language viruses. For more information about how to get your copy of Aladdin's eSafe Protect products, which include the new Macro Terminator, visit the eSafe Web site at www.Aladdin.com/eSafe/default.asp

About Aladdin

Aladdin (NASDAQ/NMS: ALDN) is a global leader in securing digital content, from applications software to Internet use and access. Aladdin's products include HASP and Hardlock, software security systems that protect the revenues of developers and publishers; Privilege, a software licensing platform for the Internet; the eSafe line of anti-vandal, anti-virus and content filtering software for PCs and networks connected to the Internet; and eToken for Internet security and authentication. Aladdin serves its customers through eight offices located in the world's major software markets as well as a network of 50 distributors serving more than 100 countries.