PRESS RELEASE

San Jose, California, 3rd June 2009 - The arrival of what appears to be the first scareware distribution attack on the Twitter microblogging service at the weekend, signals the fact that firms need to think very hard before allowing staff access to these advanced types of social networking applications, says Finjan, the business Internet security specialist.

According to Finjan, this weekend's scareware attack - in which Twitter users were invited to click on a 'best video' link but also ended up being quietly infected with a rogue security application - signals a worrying new trend in social Internet site attacks.

This weekend's Twitter scam was a complex one with users invited to click on what appears to be a YouTube video, but the embedded program call also opens an IP connection to a second site, resulting in the download of a malware-infected PDF file that later installs a rough anti-virus.

Finjan has reported on the rough anti-virus risk on its recent Cybercrime Intelligence report: www.finjan.com/mpom

For more on the Twitter best video scam: http://www.viruslist.com/en/weblog?calendar=2009-06

For more on Finjan: http://www.finjan.com

About MCRC Finjan MCRC specializes in the detection, analysis and research of web threats, including Crimeware, Web 2.0 attacks, Trojans and other forms of malware. Our goal is to be steps ahead of hackers and cybercriminals, who are attempting to exploit flaws in computer platforms and applications for their profit. In order to protect our customers from the next Crimeware wave and emerging malware and attack vectors, Finjan MCRC is a driving force behind the development of Finjan's next generation of security technologies used in our unified Secure Web Gateway solutions. For more information please also visit our info center and blog.

About Finjan Secure Gateway provides organizations with a unified web security solution combining productivity, liability and bandwidth control via URL categorization, content caching and applications control technologies.

Crimeware, malware and data leakage are proactively prevented via patented active real-time content inspection technologies and optional anti-virus modules.

Powerful central management enables intuitive task-based policy management, excellent drill-down reporting capabilities and easy directory integration for all network implementation options. By integrating several security engines in a single dedicated appliance, Finjan's comprehensive and integrated web security solution enables quick deployment, simplified management and reduction of costs. Business benefits include real-time web security (no patches or updates needed), lower total cost of ownership (TCO), cost savings in administration efforts, lower maintenance costs, and reduction in loss of productivity. Finjan's security solutions have received industry awards and recognition from leading analyst houses and publications, including Gartner, IDC, Butler Group, SC Magazine, eWEEK, CRN, ITPro, PCPro, ITWeek, Network Computing, and Information Security. With Finjan's award-winning and widely used solutions, businesses can focus on implementing web strategies to realize their full organizational and commercial potential. For more information about Finjan, please visit: www.finjan.com.