Thai ISP Selects Aladdin Web Security Solution to Offer Customers Safe Web Browsing

CHICAGO, March 21, 2007 - Aladdin Knowledge Systems Ltd. (NASDAQ: ALDN) the leader in Software DRM, strong authentication and content security solutions, today announced that Internet Solution & Service Provider Co., Ltd. (iSSP), a leading Thailand ISP, selected Aladdin's eSafe SecureSurfing™ solution to provide its business customers with the country's first "clean pipe" Internet access.

iSSP started the service last week, bringing its customers a centralized, value-added security service that inspects and filters Web traffic before it reaches the surfer. Freeing ISP subscribers of the hassle of maintaining desktop-based software to thwart threats such as spyware and phishing attacks, the Aladdin eSafe SecureSurfing Web security platform is the first-ever technology designed for ISP-managed security services.

Centralized, Real-Time Web Surfing Protection

iSSP customers will gain unparalleled peace of mind while surfing, benefiting from real-time Web surfing security with four-layer spyware blocking; real-time Web surfing Trojan and worm blocking with full inspection of all Web page content; real-time Web surfing exploit, vulnerability, and AJAX client-attacks blocking; and Web email security and antivirus effective for almost any Web-based email service. This comprehensive protection proves appealing to small- and medium-sized businesses subscribing to iSSP's service, as it requires no overhead and stands as a fast, management-free protection solution for Web traffic. Delphi Technology Co., a local Thai IT specialist, assisted in the deal.

"Throughout our testing, the eSafe SecureSurfing solution from Aladdin consistently provided protection we see as a great, differentiating factor that will bring our iSSP customers full surfing security without any ongoing maintenance on their part," said Mr. Bundit Wongwatanasin, President of iSSP. "Not only are we pleased to quickly offer this solution to our business customers, but we see this technology as a significant revenue builder that enhances the value of our trusted service."

"Aladdin continues to see large ISPs, such as iSSP in Thailand, take advantage of the small investment and great return surrounding eSafe SecureSurfing," said Tsion Gonen, vice president of the Aladdin eSafe Business Unit. "Our ‘Clean Internet pipe' technology, delivering high security and complete transparency, is based on Aladdin's innovative, proactive technology that repeatedly proves successful at bringing overwhelming value to ISPs and their customers, requiring little work to integrate and deploy this value-added service."

With eSafe SecureSurfing, ISPs can:

• Generate immediate revenues and differentiation with minimal investment
• Offer high-demand, value-added Web security services
• Increase customer satisfaction, retention and recruitment
• Sharply reduce spyware-related helpdesk costs
• Provide customers with a clean line with no need to configure, install or update
• Make security transparent to customers

About iSSP

Established in 1996, iSSP is a leader among ISPs in Thailand. Its data communication services are categorized into Internet Connectivity, Data Center, and Integrated Solutions. iSSP's Internet Connectivity allows people and organizations to get access to the Internet nationwide. iSSP's Data Center provides state-of-the-art facilities to accommodate its clients' valuable data. iSSP's integrated solutions, focusing on security and communication, enable organizations to constantly raise their efficiency in communication. iSSP believes in cultivating trustworthy, mutually beneficial alliances with partners. For more information, please visit the iSSP Web site at www.iSSP.co.th.

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.

©2007 Aladdin Knowledge Systems, Ltd. All rights reserved. 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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