I spoke incorrectly above. They always have jurisdiction if there was damage in the US. The point is that they can't get access to the person if they don't have

I spoke incorrectly above. They always have jurisdiction if there was damage in the US. The point is that they can't get access to the person if they don't have an extradition treaty with the country they're in, but that's not jurisdiction, my mistake. See http://www.kktg.net/Notes/hacking-jurisdiction/ http://www.kktg.net/Notes/hacking-jurisdiction/ which explains this.