Aladdin HASP Roars with Software Anti-Piracy Protection for New Mac OS X 10.4 'Tiger' Applications

CHICAGO, May 23, 2005 - Aladdin Knowledge Systems Ltd. (NASDAQ: ALDN), the worldwide leader in Software Digital Rights Management(DRM) and a leading innovator in enterprise content security and strong authentication solutions, today announced that Aladdin HASP, the market-leading software anti-piracy and licensing solution, now provides software anti-piracy protection for applications running under Apple's new Mac OS X 10.4 dubbed "Tiger."

"Through this latest support for 'Tiger,' Aladdin continues to demonstrate its long-standing commitment to the Mac community," said Avi Barir, vice president of Software DRM for Aladdin Knowledge Systems. "Over the past 20 years, more than 30,000 customers have relied on the Aladdin HASP Software Digital Rights Management (DRM) family of products to protect their software. Aladdin strives to quickly support the latest development and end user platforms. Aladdin HASP provides support for the Linux 64-bit operating system, Microsoft's .Net framework of applications, and now Mac OS X 'Tiger.' The key to Aladdin's market leadership remains in its powerful technology and timely updates that support the latest development platforms."

Apple Computer recently announced the launch of "Tiger" which delivers over 200 new features, making it easier to find and access everything on a computer. "Tiger" uses new search technology, stunning graphics and media, unparalleled connectivity, an intuitive user interface and a virtual toolbox – all features that provide for more powerful applications appealing to pirates.

Aladdin's HASP uses the Envelope, an anti-piracy wrapping technology to encrypt an application and add many layers of strong anti-hacking measures to ensure the highest level of application and intellectual property protection. For more information on Aladdin HASP, visit www.Aladdin.com/HASP.

About Aladdin HASP

• HASP HL - The industry's top hardware-based licensing and software protection system
• HASP HL Net - A hardware-based solution for protecting and licensing software used by multiple users in network environments and in the enterprise
• HASP SL - A software-based licensing, protection and distribution system
• HASP TT - A solution to secure and control trialware
• HASP DocSeal - An advanced hardware-based system for intellectual property protection

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 and viruses. 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 limit revenue loss 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.

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