Cloudmark Announces Anti-Spam Software Alliance with Korea’s Anti-Virus Leader, AhnLab Inc.

San Francisco, Calif. – July 20, 2004 – Cloudmark(tm) Inc., the immune system for email, today announced that it formed a strategic alliance with Korea’s AhnLab(tm) Inc., the nation’s largest computer security firm with 65 percent of the anti-virus software market share and 9th largest anti-virus software company in the world, to integrate its gateway anti-spam solution, Cloudmark Authority(tm) with AhnLab GateScan(tm) for email, Asia’s leading gateway security product.

By integrating Authority anti-spam software with GateScan, AhnLab will enhance its ability to accelerate the provision of leading integrative gateway security solutions to Japan, China, and the United States. The alliance will also help accelerate sales of Cloudmark’s entire suite of products in Asia Pacific through AhnLab’s key strategic corporate partners.

“Our alliance with Cloudmark will help us create a comprehensive security product line,” said Kim Chul-soo, vice president of AhnLab. “Cloudmark’s ability to stay ahead of its competitors and continually enhance the intelligence of Authority in real time will give AhnLab the confidence to eventually integrate Authority into our entire security portfolio.”

After several months of testing, AhnLab determined that Cloudmark’s Authority solution emerged as the clear technology leader in combating the growing global spam problem. Through adaptive Genetic Classification(tm) and spamGene(tm) technology, Authority is able to accurately identify and remove more than 98 percent of spam while reducing false positive occurrences to almost zero; these results even in dealing with foreign language spam.

Moreover, AhnLab chose Cloudmark as a partner because the company has proven that it will be the leader in anti-spam software for years to come.

“Partnering with such a significant player within Asia Pacific’s information security market will provide Cloudmark with a strong presence in the established Japanese and Korean markets in addition to the emerging Chinese market,” said Karl Jacob, CEO of Cloudmark. “This partnership with AhnLab truly positions Cloudmark as a leader in the international anti-spam solutions space.”

About Authority:

Cloudmark Authority(tm), the first-ever automated spamDNA(tm) technology, scales to handle massive message throughput while maintaining near perfect filtering accuracy with zero false criticals. Unlike other corporate anti-spam products, Authority(tm) delivers the lowest TCO because it is fully automated, only needs updating every 30 days, and requires no new hardware to deploy. In addition, Cloudmark’s Authority(tm) is a closed system that runs completely inside the corporate firewall with minimal impact on the message transfer agent (MTA), ensuring absolute email security. To assure overall network security, Authority(tm) requires no open communications port and has no need to receive dozens of daily filtering rules updates.

About AhnLab:

Founded in 1995, AhnLab is Asia’s leading provider of Antivirus and Contents security software and services. AhnLab’s V3 brand antivirus software protects businesses and organizations against viruses and other malicious attacks.

By pioneering a comprehensive approach to Integrated Information Technology Security, AhnLab represents Asia’s dominant force in anti-virus solutions, controlling over 65 percent of the Korean market share and increasingly gaining a strong presence in Japan and China.

Headquartered in Seoul, AhnLab has additional operations in Tokyo, Beijing and Shanghai. For more information, AhnLab can be reached at 822-2186-6000 or on the Internet at http://info.ahnlab.com/english/ .

About Cloudmark:

Cloudmark(tm) is the company that delivers the immune system for email. The company offers tailored anti-spam solutions for the desktop, small and medium businesses (SMBs) and the large enterprise providing immediate spam relief to thousands of businesses and more than a million desktops in 72 countries.

Cloudmark invented the highly effective spamDNA technology, the recent innovation of Email Genetic Mapping(tm) coupled with Cloudmark’s revolutionary nDimensional technology and the first peer-to-peer, real-time, SpamFighting community in 1998.

Cloudmark was founded by CTO Jordan Ritter, also co-founder of Napster, and Vipul Ved Prakash, chief scientist and author of Vipul’s Razor.