Hi,
I don't think that anyone is going to try to hack any WI-FI or Sci-Fi, or Bi-Fi ... any time soon, because it would be way too visible and they could get nailed easily enough, and a company name in it would create a backlash that could hurt a lot. Anyone, trying to get advertising on that, would probably get nailed sooner or later by an admin/person that is not an idiot when it comes to these things.
Threats and intentional hacks, are not always caught, but many of them that do ... you don't want the FBI at your house, do you? it's not a good game to play, besides the fact that someone is using their own connection and their own provider has no idea what is going on?
Not likely! Our ISP turned off an account, good money too, because the guy was spaming and trying to hack people's accounts with his account, and he got busted, and was fined by the judge ... kinda bad! That guy, will never again, get another job doing code or anything having to do with computers, because of his credibility.
Someone better think twice!