"Common abbreviation for Goober with Firewall". A {luser} who has
equipped his desktop computer with a hypersensitive "software
firewall" or host intrusion detection program, and who gives its
alerts absolute credence. ISP tech support and abuse desks dread
hearing from such persons, who insist that every packet of abnormal
traffic the software detects is "a hacker" (sic) and, occasionally,
threatening lawsuits or prosecution. GWFs have been known to assert
that they are being attacked from 127.0.0.1, and that their ISP is
criminally negligent for failing to block these attacks. "GWF" is
used similarly to {ID10T error} and {PEBKAC} to flag trouble tickets
opened by such users.
[glossary]