Aladdin Brings Award-Winning Anti-Virus Protection to Cell Phone Providers

CHICAGO, November 2, 2005 - Aladdin Knowledge Systems (Nasdaq:ALDN), the worldwide leader in Software Digital Rights Management (DRM) and USB-based authentication solutions, and a leading innovator in enterprise secure content management, today announced a new Aladdin eSafe Mobile Content Security Gateway (MCSG) designed specifically for cellular providers to offer unmatched protection against the growing number of mobile viruses and spam.

Worldwide, more than 100 million smartphones were sold in 2004. With most running on Microsoft Windows Mobile, PalmOS or Sybian operating systems, these convenient devices are vulnerable to security threats such as viruses and other malicious code received through various means. Mobile devices are also commonly used as cellular modems connecting mobile computers to the Internet, exposing the users to all common Internet threats, including mobile-specific malicious code. Device-installed security is non-existent or extremely limited and cannot be trusted to prevent operator-wide outbreaks. An operator content security service is the most effective solution both in cost and in practice.

Aladdin eSafe MCSG Multi-Layered Approach for Cellular Customers

Situated between the Internet and the cellular provider network, Aladdin eSafe MCSG inspects the content of MMS and WAP traffic as well as HTTP and SMTP content. eSafe's multi-layered approach to protection provides comprehensive security against viruses for handheld devices, as well as PC malicious code, email-borne spam and phishing:

• Mobile Viruses - eSafe uses several unique technologies to block zero-hour malicious code, including mobile viruses that travel via MMS or downloads from the Internet. In addition to signature based protection, eSafe uses proactive technologies that perform sophisticated code emulation to inspect executable code in real time to find abnormal behavior. The eSafe Content Security Response Team (CSRT) uses a patented OutbreakSentry™ system that monitors MMS and mobile Internet traffic and can catch virus outbreaks in real time. When ever a new threat is discovered, the eSafe CSRT will issue a security update that is automatically updated by eSafe MCSG to block the newly discovered virus or security hole that can be exploited by a virus.
• Spam - eSafe uses 20 different technologies to identify and block spam with high accuracy. eSafe's Advanced Anti-spam blocks more than 96 percent of spam with nearly zero false-positives. This ensures that inbound junk emails will not be transferred to costly MMS messages, not annoy mobile phone users and not clog their phone memory. Outbound Spam is blocked as well, ensuring spammers are not abusing the network or using stolen devices to distribute spam. This also prevents the cellular operator's network from being blacklisted.
• Email Security - eSafe delivers a high level of email security utilizing unique "email reconstruction" technology to prevent potentially dangerous, malformed, damaged and hacked email. eSafe takes each email apart, inspects each section, and then reconstructs the email according to all the relevant RFC standards. This ensures that al emails arriving at the internal mail server will never circumvent security standards.
• Phishing - It is extremely difficult for a novice user to distinguish between legitimate or phishing Web sites. This is especially true when using a limited smartphone Web browser. eSafe contains unique technologies to thwart email phishing attacks and prevent mobile phone users from clicking on email links that will take them to phishing Web sites.

Unique Aladdin eSafe MCSG Differentiators

• Anti-virus engine that identifies and blocks all Symbian, J2ME, PalmOS, and Windows Mobile/CE malicious code
• Identifies and blocks malicious code in all MMS formats (MM1/MM3/MM4/MM7)
• Full WAP traffic inspection for mobile and PC malicious code
• Multi-layered anti-spam and phishing prevention for email messages
• High throughput to support millions of subscribers
• Built-in load balancing and fail-over
• OutbreakSentry system for MMS and mobile Internet traffic
• 24x7 security service with timely updates for new mobile users

"Through the Aladdin eSafe MCSG, we now bring the mobile community the same powerful eSafe technologies relied upon by large corporate networks," said Shimon Gruper, vice president of technology for the Aladdin eSafe Business Unit. "A service-based solution is the most practical and efficient, as well as cost effective. By providing stellar security for their customers, cellular providers will stand out as organizations that employ the latest technologies that match the ever-evolving threats entering the mobile network. Aladdin is pleased to offer such a uniquely proactive approach to mobile email and Internet security."

About Aladdin eSafe 5

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 antivirus 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.

For more information on Aladdin eSafe, visit http://www.Aladdin.com/eSafe.

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.

©2002-2005 Aladdin Knowledge Systems, Ltd. All rights reserved. eSafe, OutbreakSentry and 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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