McAfee obtains firewall patent

Slashdot reports that anti-virus developer Mcafee has been granted U.S. Patent 6,839,852 for monitoring network traffic with a firewall. The patent is for:

A system, method and computer program product are provided for tracing a traffic event utilizing a firewall. Initially, a firewall is executed on a local computer. Next, traffic events between the local computer and a remote computer over a network are monitored utilizing the firewall. Further, the traffic events are displayed utilizing the firewall. In use, at least one of the traffic events is traced utilizing the firewall. Moreover, a map of the trace is displayed for effectively conveying information about the traffic event.

The patent was filed on February 8, 2002. 2002?! How can McAfee claim no prior art exists when there is a very concise FAQ on firewalls written in 2001?

And they wonder why we oppose software patents?

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