don't forget the silent partners
firstly, the Security Services making sure there are huge gaping back doors through which they can improve their spying on you 24/7.
then there are the malware people. If you think that the STUXNET malware attack was bad, then just think what fun they will have with all sorts of kit around your home all nicely wired up to the internet?
Going 'off grid' seems make more and more sense every day.