Hey everyone, i found this today on the net, and i must say it sounds really neat.

Free software gives hackers taste of own medicine By Team Register, The Register Apr 1 2003 7:51AM IT security specialist Backfire Security today announced the availability of a software download as a discrete desk-top client application which wreaks revenge on those hackers and culprits attacking your network or infecting users with worms and/or viruses.
Get the full story HERE!