[Fice]

You don't. That's a way to punish all users of pirated software.

[ClumsyPilot]

Thats still a crime.

You can't rob someones house even if they they are a burgler.

[Fice]

Can a vendor be held responsible for anything an unauthorized pirated copy of their software does?

[eurasiantiger]

Can a car manufacturer be held responsible for built-in features designed to maim or kill unauthorised users?

[croes]

If he put the malware in, yes.