I mean I'm no hacker but the whole premise seemed like bullshit.
The Feds could have used some sort of homeland security crap to force every US ISP to shut everything down, that way no one goes to the website. Then they could have figured out who went there and arrest them for accomplice to murder.
And is it really possible to make a website untraceable? Doesn't your computer have to know where the website is to see said website?
Also hacking into her car and shutting everything off was bullshit. I know that onstar lowjack etc can shut the ignition off and lock / unlock the doors and track, but come on now.
I just plain did not like this movie, I think Live Free or Die Hard was a more scary portrayal of hacking than this boring movie.