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New Cloudmark Fingerprinting Algorithm Rapidly Detects and Blocks Email-Borne Viruses

Rounds Out Industry-Leading Anti-Spam and Phishing Solutions with "Zero-Hour" Anti-Virus Protection

SAN FRANCISCO, March 13, 2006 — Messaging security leader Cloudmark Inc. has introduced a new anti-virus fingerprinting algorithm delivering exponentially faster detection and blocking of new email viruses. Known worldwide for its industry-leading accuracy and efficiency in fighting spam and phishing attacks, Cloudmark solutions now equip service providers and their subscribers with the industry's fastest identification and blocking of viruses.

Rapidly deterring email-borne viruses helps messaging providers sustain subscriber satisfaction and contain costs. As with spam and phishing protection, Cloudmark's virus detection methodology and zero-hour fingerprinting algorithm deliver industry-leading speed that outperforms, and in some cases supplements, other leading solutions. The new zero-hour executable fingerprinting algorithm disassembles executable code to generate fingerprints that identify new worms and virus stains in real time. The algorithm automates and thus speeds the response process by which suspect emails are evaluated and reported by highly credible reviewers worldwide in all languages. Cloudmark's worldwide network of "honeypots" and proven reporters squelch virus attacks exponentially faster than alternative approaches that require time-consuming analysis and new rules creation upfront.

"As the recent outbreak of the Kama Sutra virus proved, our technology enables Cloudmark reporters to click 'block' and halt a threat globally well before competing methods can get a grasp and take action," says Vipul Ved Prakash, founder and chief scientist of Cloudmark. "Cloudmark solutions apply an intelligent, efficient combination of automation and human intervention. The new fingerprinting algorithm automates the manual 'reverse engineering' process common to leading anti-virus solutions, at a much more powerful juncture, and further prevents the proliferation of future variants of the virus."

In February, the Cloudmark network detected and began shutting down the much publicized Kama Sutra virus in less than 20 minutes after its first appearance in the Cloudmark network, and a full five hours sooner than the next closest competitor. The data collection, analysis, and update cycle is fully automated to ensure the fastest possible response time to attacks and has been shown in independent reviews to be the fastest, most accurate network in the world.

Cloudmark Messaging Security Solutions

The most effective and intelligent combination of technology and human discretion, the Cloudmark secure messaging methodology combines reporters ranked by the global Trust Evaluation System (TeS) with highly proficient recognition, or fingerprinting, algorithms. Cloudmark secure messaging solutions are renowned for market-leading accuracy in stopping spam and phishing scams, and for the lowest Total Cost of Ownership (TCO). Cloudmark solutions are differentiated by delivering the highest accuracy with the fewest false positives, and for the best performance across all languages. In service provider networks, Cloudmark improves the economics of storage, processing resources and customer care.

Cloudmark, the Cloudmark logo, Cloudmark Desktop, Cloudmark Server Edition, Cloudmark Immunity, Cloudmark Authority, and SpamNet are trademarks or registered trademarks of Cloudmark Inc., for use in the United States and other countries. All other product and company names herein may be trademarks of their respective owners.

About Cloudmark

Cloudmark is a trusted leader in intelligent threat protection against known and future attacks, safeguarding 12 percent of the world’s inboxes from wide-scale and targeted email threats. With more than a decade of experience protecting the world’s largest messaging environments, only Cloudmark combines global threat intelligence from a billion subscribers with local behavioral context tracking to deliver instant and predictive defense against data theft and security breaches that result in financial loss and damage to brand and reputation. Cloudmark protects more than 120 tier-one service providers, including Verizon, Swisscom, Comcast, Cox and NTT, as well as tens of thousands of enterprises.

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