Pretty interesting if you ask me.
Has anyone made anything like this.
I suppose you could just plug and unplug your router or cable to PC.
But then you'd have to access back of your PC and kill your wifi connection.
And if you have smart wifi gadgets @ home this wouldn't be useful.
Would it be possible to make a wifi internet kill switch?
One that you could possibly control by your phone?
I suppose if the switch was somehow getting power from an outlet you could install a wifi/smart outlet and kill the connection. But they don't require power from an outlet.