ZDNet Names eSafe Desktop "Killer Download"Application for Internet Content Security.

Business Editors, Technology Writers

CHICAGO--(BUSINESS WIRE)--Dec. 8, 2000

Five-star rating from ZDNet touts eSafe Desktops's Sandbox technology as strong protection mechanism against malicious code

Aladdin Knowledge Systems (NASDAQ:ALDN), a global leader in the field

of Internet content and software security, today announced eSafe Desktop was included this week in ZDNet Download's "Killer Downloads" column by software downloads guru Preston Gralla. ZDNet, a CNET Networks company, labeled eSafe Desktop a "superb" security solution against vandals and viruses.

Gralla's "Killer Downloads" column on ZDNet (http://www.zdnet.com/anchordesk/stories/story/0,10738,2659561,00.html) highlights eSafe's ability to protect PCs that are constantly connected to the Internet, and thus more susceptible to attacks. In August, ZDNet also gave eSafe Desktop a five-star rating, praising its anti-vandal protection through Sandbox technology.

"Aladdin offers eSafe Desktop free of charge to all home users to encourage the Internet community to adopt proactive content security standards," said Tom Crowley, Aladdin's Vice President, Internet Security. "Traditional anti-virus technology that relies on virus table updates to protect the end-user are inadequate for protecting PCs against today's malicious code such as the Melissa virus or the ILoveYou bug. We're delighted with ZDNet's endorsement of eSafe Desktop, and we hope that more people will choose to proactively protect their PCs before a threat hits."

ABOUT eSAFE

Aladdin's eSafe product suite, which includes eSafe Desktop, eSafe Enterprise and eSafe Gateway, provides the most comprehensive protection available against hostile elements on the Internet and gives users confidence in their ability to navigate the Internet safely.

eSafe is the only comprehensive suite of content security solutions on the market to provide proactive protection from the gateway to the desktop. It also is the only one to provide Total Sandbox Quarantine(TM) protection against all forms of malicious content including viruses, vandals and worms. A unique feature found only in Aladdin's eSafe solutions, the sandbox erects a protective wall around vital system files and isolates all potentially dangerous viruses, vandals and worms in a sterile environment, preventing them from damaging, infecting or stealing from system resources.