Aladdin eSafe 5 FR2 Offers Most Comprehensive Web Security and Spyware Protection for the Gateway

Aladdin eSafe 5 Feature Release 2 to be available May 1st - New URL Filtering Module and Spyware Neutralizer offer extensive protection against illicit Web sites containing dangerous spyware

CHICAGO, April 17, 2006 - Aladdin Knowledge Systems (NASDAQ: ALDN), the leader in Software DRM, identity management and content security solutions, today announced that Aladdin eSafe 5 Feature Release (FR) 2 will be released for general availability on May 1st 2006. This latest eSafe solution brings to market the most comprehensive Web security for organizations, together with a new URL Filtering Module and Spyware Neutralizer designed for protection against the fast-growing number of malicious Web sites containing dangerous spyware.

Prior to the growth in spyware, URL filtering was simply a tool for maintaining employee productivity. With the introduction and proliferation of spyware and Web surfing attacks, the weight shifted almost entirely to spyware blocking and security. eSafe 5 FR2's new URL filtering capabilities prove vitally important for an organization's security, since huge numbers of inappropriate Web sites clearly contain harmful spyware that can result in damaging information and identity theft. This security layer comes in addition to eSafe's unique four-layer anti-spyware protection with AppliFilter™ capabilities that identifies and blocks outbound spyware traffic.

"It is becoming increasingly more common for organizations to be infected with spyware and other threats simply by browsing the Internet - something we did without thinking for years," said Matt Anderson, market analyst for The Radicati Group. "Now, it's clear that organizations must take stronger precautions and employ powerful, new tools such as those inside Aladdin eSafe 5 FR2 in order to greatly reduce the risk of these dangerous Web-borne threats."

"eSafe 5 FR2 represents a shift in the role of URL filtering - now a critical component of Web content filtering in order to maintain security, safety and productivity," said Shimon Gruper, vice president of technologies for the Aladdin eSafe Business Unit. "In fact, traditional URL filtering companies are attempting to position themselves as security companies. However, there is a lot of expertise to gain in a short amount of time. Since 1997, Aladdin has been focused on Web browsing security, investing significant development into eSafe 5 FR2's unmatched spyware protection. eSafe 5 FR 2 stands as the clear answer to overall Web security, offering the most comprehensive set of tools for blocking the latest threats. We're pleased to harness Aladdin's specialty and security expertise through the release of eSafe 5 FR2."

eSafe 5 FR2 offers unmatched Web browsing security and Web filtering, eliminating threats common to Web sites that are usually categorized as not work related. eSafe employs the largest and most accurate database of classified URLs in the world, with over 20 million entries, 58 categories, and more than 100,000 daily updates - five to ten times competing databases. Featuring the largest, most accurate, and most advanced URL filtering database eSafe uses sophisticated algorithms and intelligent crawling and analysis to guarantee that 97 percent of all browsed Web sites in an organization are indexed.

Numerous new features inside eSafe 5 FR2 include:

URL Filtering

• LDAP/AD Integration - LDAP integration allows directory synchronization for users and groups and Microsoft Active Directory support
• URL Filtering Profiles - Ability to define different URL filter profiles for users/groups, Workstation hostname or IP and Subnets according to IP range or VLAN (any profile can be active during all, work or after-hours times)
• Flexible User Identification - Users can be identified using new methods, including authentication by existing proxy, user-name identification using LOGIN script and user-name identification using a client installed agent - useful for public computers, libraries, schools, etc. that do not have LDAP or Active Directory

Spyware Protection

• Spyware Infected PC Warning Message - When a spyware infected PC is detected by AppliFilter, the next time a user tries to surf the Web he will be redirected to a special customizable warning Web page. This Web page can optionally contain a link to Spyware Neutralizer's ActiveX (see below) to disinfect his PC
• Spyware Neutralizer ActiveX - A stand alone Spyware Neutralizer module can be embedded into any Web page (or downloaded manually) and launched by the user to disinfect spyware-infected PCs. This is useful for networks where users do not login to a domain server (e.g. schools), or as a value-added service for xSPs

Management and Reporting

• Outbound Traffic Logging and Reporting -- HTTP/FTP traffic direction and attempts to open outbound connections on restricted ports are now recorded in the session log. This will show important information such as unauthorized file uploads or suspicious Trojan activity
• User Identification in Reports -- Whenever possible, the user name will be resolved via LDAP/AD and written to the report in addition to the IP address. This is useful to quickly identify the violating user without the need to figure out who is behind a certain IP address

Enhanced HTTP/FTP Security

• FTP Upload Blocking -- Selectively blocking FTP uploads from unauthorized PCs can reduce the chance of outbound Trojan traffic

For more detailed information on Aladdin eSafe 5 FR2 features and benefits, visit http://www.Aladdin.com/eSafe.

Availability

eSafe 5 FR2 will be available to new customers on May 1st 2006. Existing Aladdin eSafe customers will receive a special personalized email by June with instructions on updating their current eSafe solution.

About Aladdin eSafe

Aladdin eSafe is an integrated gateway content security solution providing proactive email security and Web browsing security. As an in-line, transparent solution, eSafe offers the industry's highest content security performance, encompassing:

• Layered anti-spyware
• Spam management
• Application filtering
• Proactive anti-virus technologies

Unlike other products which focus on viruses, eSafe protects users and the enterprise from Web-borne content threats including spam, viruses, known and unknown worms, Trojans, Webpage malicious code, spyware, unauthorized P2P, Instant Messaging applications, and more. With eSafe, organizations take control before problems arise, saving valuable time as well as thousands of dollars in costly repairs, and providing content security where it counts most - at the gateway front line.

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, viruses and spyware. 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 protect their intellectual property and increase revenues by reducing losses 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.

©2002-2006 Aladdin Knowledge Systems, Ltd. All rights reserved. eSafe, Aladdin Knowledge Systems and the Aladdin logo are trademarks or registered trademarks of Aladdin Knowledge Systems, Ltd. All other product and brand names mentioned in this document are trademarks or registered trademarks of their respective owners.

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