Comment by toomuchtodo

I stand corrected and misremembered comment https://news.ycombinator.com/item?id=49592375

It has not been demonstrated actively in use, only that it is possible and trivial to implement. Statement with regards to it being demonstrated retracted.

I stand by the concept that any consumer IoT device could join these networks, and the end user would never know. The only legal solution to this problem statement is to physically disable the radio on the device if assurance is desired.