Re: Hacking back against forged attacks
Not Alice - see "Joe job". Misdirected reactions since 1996.
These things happen all the time in the physical world, especially when one of the actors is going through an acute paranoia phase, and has copious amounts of ammo lying around. Very frequently, they do not even require a malicious, misdirecting agent, and come from either a purely accedental glitch somewhere, or because of a misinterpretation of an innocent mistake. See (among many others) the Tonkin incident and KAL 007 incident.
I am really looking forward to some cowboy "defending" himself by trashing my systems after misinterpreting his logs showing my e-mail arriving 5 minutes before his 15-years old SCSI disk array finally gave up the ghost due to an advanced old age - which will inevitably happen if laws like this one come into force.