"Barracuda Networks is actively seeking the support of the free and open source software (FOSS) community in its battle against a patent suit brought against it by Trend Micro. The suit revolves around Barracuda's distribution of Clam Antivirus (ClamAV), the well-known FOSS security software, with its firewall and Web filter hardware appliances.
"The patent allegedly violated is patent 5,623,600, which is for anti-virus detection on an SMTP or FTP gateway. Applied for in 1995 and granted in April 1997, the patent shortly afterwards became the means of forcing out-of-court settlements from both Symantec and McAfee, two of the leading proprietary manufacturers of anti-virus software..."
