Aladdin's eSafe Gateway Content Security Solution Receives Check Point's OPSEC Certification

CHICAGO, July 31, 2001 - Aladdin Knowledge Systems (NASDAQ: ALDN), a global leader in the field of Internet content and software security, today announced its eSafe Gateway content security solution has achieved OPSEC™ (Open Platform for Security) certification from Check Point® Software Technologies (NASDAQ: CHKP), the worldwide leader in securing the Internet.

As the final step in positioning eSafe Gateway as a seamlessly installed network security solution, OPSEC certification reaffirms eSafe's tight integration with Check Point's industry-leading VPN-1®/FireWall-1®, an integral part of its Secure Virtual Network (SVN™) architecture. In accordance with an organization's corporate policy, eSafe Gateway manages Internet-borne information flow by inspecting malicious code, such as vandals, viruses, worms, Trojans, ActiveX, Java applets and active scripts. Additionally, inappropriate and nonproductive material is also blocked to prevent abuse of network resources.

"We are pleased to see Aladdin's eSafe product receive OPSEC certification," said Upesh Patel, manager of the OPSEC Alliance for Check Point Software Technologies. "The integration of Aladdin's eSafe Gateway with Check Point's VPN-1/FireWall-1 software continues to offer users a "best-of-breed" all in one Internet content security solution."

"OPSEC certification ensures the seamless and efficient integration of eSafe with Check Point's market-leading security software, enabling a robust proactive content security solution for our joint customers," said Shimon Gruper, Vice President of Internet Security at Aladdin Knowledge Systems. "Our customers love the interoperability with Check Point's VPN and firewall and our resellers love the ability to deliver best-of-breed integrated security solutions to their customers. We are committed to continue delivering OPSEC compliant products and to support future enhancements in this framework."

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 Sandbox 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.

Much more than anti-virus protection, the eSafe suite of products enables businesses to:

block users ability to alter system files, thereby reducing IT maintenance and repair costs
stop access to web sites with inappropriate or malicious content, such as hate literature or pornography, or those sites known to propagate viruses
restrict outgoing emails from sending classified or prohibited content

About Check Point's OPSEC®
OPSEC (Open Platform for Security) is the industry's open, multi-vendor security framework. With over 270 partners, OPSEC guarantees customers the broadest choice of best-of-breed integrated applications and deployment platforms that support Check Point's Secure Virtual Network Architecture. Products that carry the OPSEC Certified seal have been tested to guarantee integration and interoperability. For complete OPSEC Alliance program information, including partner and product listings, the freely available OPSEC SDK (software development kit) and evaluation versions of OPSEC Certified products, visit http://www.opsec.com.

About Aladdin
Aladdin (NASDAQ: 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 through a network of 50 distributors serving more than 100 countries. For more information visit our Web site at www.eAladdin.com.

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Check Point, the Check Point logo, FireWall-1, OPSEC, VPN-1 are trademarks, service marks, or registered trademarks of Check Point Software Technologies Ltd. or its affiliates. All other product names mentioned herein are trademarks or registered trademarks of their respective owners.

The Check Point products described in this document are protected by U.S. Patent No. 5,606,668 and 5,835,726 and may be protected by other U.S. Patents, foreign patents, or pending applications.