As far as I understand it is up to the owner to make their network secure (not that I'm complaining). I suppose some nutter could use the connection to find out how to build a bomb (or something more sinister, let's not name it) and the i.p would be at the network owners house. I only connect at odd times of the day (like this morning 6:30am) because I don't want to be seen on the network by them - it could be embarrasing.