Aladdin eSafe Increases Security through New IM File Transfer Blocking

Aladdin eSafe now offers enhanced AppliFilter technology that blocks potentially harmful file transfers while still allowing legitimate IM messaging

CHICAGO, August 2, 2006 - Aladdin Knowledge Systems (NASDAQ: ALDN), the leader in Software DRM, identity management, and content security solutions, today announced its Aladdin eSafe gateway-based content security solution now offers enhanced AppliFilter™ features that allow organizations to block file sharing in Instant Message (IM) applications.

IM file transfers stand as a fast-growing threat, serving as one of the major vulnerabilities in organizations' Internet security. Phishing attacks, spam, spyware, viruses and worms are now commonly transferred through seemingly harmless IM use within the enterprise.

A unique technology of its kind, eSafe's AppliFilter allows organizations to continue using convenient text messaging applications while gaining assurance that potentially dangerous file transfers are blocked. With the deployment of eSafe's new AppliFilter rules, organizations gain significant Internet protection through powerful identification and blocking features that instantly halt the transfer of files that may contain malicious code, pirated content or confidential data. AppliFilter assesses ICQ/AOL Instant Messenger, MSN Messenger, Windows Messenger and Yahoo Messenger traffic at the gateway, easily identifying IM protocols while in transit. eSafe is also the only solution that can effectively block Skype, a popular IP telephony and instant messaging application considered to be a security breach in many organizations.

"One of the main vectors for malware in instant messaging has always been file transferring," said Matt Anderson, Market Analyst at The Radicati Group. "Through AppliFilter, organizations can benefit from the increased productivity that IM platforms offer, without the risk of infection through rogue file transfers."

"The enhanced AppliFilter inside Aladdin eSafe gives organizations the best of both worlds - added security and continued efficiency through the uninterrupted use of IM applications," said Shimon Gruper, vice president of technology for the Aladdin eSafe Business Unit. "Many organizations rely on IM applications just as they rely on email. Aladdin answers this need to continue its use while maximizing security - the cornerstone of eSafe innovation."

The newly enhanced AppliFilter rules are automatically available to all eSafe 5 customers through Aladdin's advanced, secure eSafe Care update system. Aladdin eSafe customers with subscriptions to the eSafe Care service can activate IM File Transfer blocking rules immediately.

About Aladdin eSafe

Aladdin eSafe is a high capacity, perimeter-based, strong content security solution that provides organizations a transparent shield from threats and enhances productivity. eSafe enables organizations to supply secure Web surfing through a wire speed security gateway featuring powerful anti-spyware and unauthorized application filtering; reduce spam though a proactive email security gateway with advanced spam management; and improve security through URL filtering with transparent inspection of HTTP, FTP, SMTP and POP3. For more information, please visit www.Aladdin.com/eSafe.

About Aladdin

Aladdin Knowledge Systems Ltd. (NASDAQ: ALDN), founded in 1985, is a global provider of security solutions. Its security products are organized into two segments: Software Digital Rights Management (DRM) and Enterprise Security. Aladdin's Software DRM products allow software developers and publishers to protect their intellectual property, increase revenues through licensing, and reduce losses from software piracy. Aladdin's Enterprise Security solutions enable organizations to secure their information technology assets by controlling who has access to their networks (identity and password management) and what content their users can utilize (proactive content security). Aladdin has offices in 10 countries, a worldwide network of channel partners and holds numerous industry awards for innovation and reliability. For more information, please 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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