VirnetX Files New Motion Against Microsoft

Windows 7 and Windows Server 2008 R2 Named

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Mar 18, 2010, 01:28 ET

SCOTTS VALLEY, Calif., March 18 /PRNewswire-FirstCall/ -- VirnetX Holding Corporation (NYSE Amex: VHC), a secure real-time communications and collaboration technology company, today announced that, on March 17, 2010, it filed a complaint in the Tyler Division of the Eastern District of Texas alleging infringement of U.S. Patent Nos. 6,502,135 and 7,188,180 by Microsoft's Windows 7 and Windows Server 2008 R2 software products.

"This is a tactical and procedural post-trial action to ensure and protect our property rights as we proceed to final resolution with Microsoft," said Kendall Larsen, VirnetX President and CEO.

On March 16, 2010, a jury awarded VirnetX a $105,750,000 verdict against Microsoft Corporation for infringing the same two VirnetX patents. The Jury also found that Microsoft's patent infringement was willful. VirnetX will request injunctive relief.

About VirnetX

VirnetX Holding Corporation, a secure real-time communications and collaboration technology company, is engaged in commercializing its patent portfolio, derived from a Central Intelligence Agency security project, by developing a licensing program, as well as developing software products designed to create a secure environment for real-time communications such as instant messaging and Voice over Internet Protocol. The Company's patent portfolio includes over 48 U.S. and international patents and pending applications which provide the foundation for the Company's unique GABRIEL Connection Technology. For more information, please visit www.virnetx.com

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