PRESS RELEASE

CHICAGO, March 4, 2009 " Aladdin Knowledge Systems (NASDAQ: ALDN) today announced that Aladdin eSafe is the industry's first-ever Web security solution that offers advanced Web 2.0 application controls for popular social networking sites such as LinkedIn and Facebook.

With the latest update to Aladdin eSafe, businesses now have the capability to not just block or allow access to social networking sites, but can actually control specific functions within the sites. The latest release of Aladdin eSafe AppliFilter now allows eSafe customers to restrict specific functionality on popular social networks, such as Facebook's "Invite a Friend" or "Add a Friend," or LinkedIn's "Huddle Workspace" application. The result is a level of control that enables the use of sites by employees without the risk of data leakage or misuse that comes from specific features.

Recent studies found that 85% of malware is currently being distributed through Web 2.0 applications. With the advent of Web 2.0 sites and their growing use in the corporate environment, businesses are finding it difficult to cope with the openness these sites bring — both from content being passed back and forth, as well as from other security risks in the form of unscrutinized data that can turn malicious when rendered at the corporate browser. The requirement to allow social networking sites as a way to empower and enhance certain business processes can now be balanced with the risks commonly associated with unrestricted access.

"Blocking social networking sites altogether is not an option for businesses today, creating the need for other means that enable access while enhancing productivity and preventing unnecessary data leakage," said Graham Titterington, Principal Analyst at Ovum. "Web 2.0 security is a growing concern as businesses struggle to control content in social networking sites and control corporate Web 2.0 sites, aggregation services, as well as the development of ad-hoc applications."

"Employers understand that social networking sites can be a useful business tool, but many of the functions within them can decrease productivity and increase security risks to data and identities. Until now, the choices for controlling these sites have been limited to either absolute blocking or allowing of the site," said Ofer Elzam, CTO of content security at Aladdin Knowledge Systems. "The latest eSafe AppliFilter update now gives organizations the power to manage and control their employees' access to specific aspects of Web 2.0 applications so they can minimize unnecessary risk and improve productivity while still capitalizing on the business and collaborative value these sites can bring."

About Aladdin Aladdin Knowledge Systems (NASDAQ: ALDN) is an information security leader with offices in 15 countries, a worldwide network of channel partners, and numerous awards for innovation. Aladdin eToken is the world's #1 USB-based authentication solution, offering identity and access management tools that protect sensitive data. Aladdin SafeWord two-factor authentication technology protects companies' important information assets and applications. Aladdin HASP SRM boosts growth for software developers and publishers through strong anti-piracy protection, IP protection, and secure licensing and product activation. Aladdin eSafe delivers real-time intelligent Web gateway security that helps protect data and networks, improves productivity, and enables compliance. Visit www.Aladdin.com.

For More Information: Matthew Zintel Zintel Public Relations Office: 310-574-8888 [email protected]