“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…”