It's surely too much of a chore to go after the criminals, so why not just punish normal people. Also the spyware most users acquire on their PCs from companies for either marketing purposes, advertising etc, that, for some reason, is OK, the fact that it's a form of hacking is just ignored - there's some corporate money involved here, so why legislate? Also considerable amount of junk mail, but you can call it spam is produced by marketing divisions of various perfectly legitimate companies.
Their highway safety argument doesn't make sense either: if someone breaks into your vehicle to sabotage it and make it unsafe, it is not your fault to start with, and the perpertrator is a criminal.
Typical statist drivel: let's legislate, make lots of laws, hire lots of police to enforce them, create special bureaucratic bodies to assist and control the enforcement, etc. Commie bastards.
I've seen instances of infected computers spreading their disease, and the owner was alerted but they failed to do anything about it. They just didn't care. Should they share some of the liability?