You are assuming that the business doesn't use a third party monitoring firm.

Ultimately, whenever you visit any place, business or home, the data is under the control of the owner and anyone they abdicate those rights to.

I tend to agree, though I tried to do some searches for a law citation here, but struggled to find anything concrete. I imagine this will be a big area of research and exploration for law in the coming years.

Some interesting scenarios to consider: If I visit a friend's house, and I start getting targeted ads for a service I didn't subscribe to without prior consent or my knowledge, can I sue her/him? What about a scenario where some service collects my data, said service is hacked, and someone commits identity theft on me, who is liable for damages? Do I need my buddy to sign a waiver when he visits to play some Xbox for a bit?

> When you visit you friend's house, the data is not under their control, it is under Google's control.

But it was your friend's decision to delegate that control. So, Google having that control is still a consequence of your friend's control.

Do you normally use your friends' wifi? I do that when it's family, but generally not with my friends (don't do LAN parties anymore).

With LTE, I don't need wifi.

Wasn't there a story recently about android phones still being tracked and tracking wifi hotspots even with wifi turned off? I believe location services still works pretty well even with GPS and wifi off.

I would imagine if you walk into a home with google's AI doodads all over the place, you're gonna be picked up.

Yes, there was recently a question of how Android knew someone's location with such high resolution, even when wifi and GPS were both turned off. The answer was a passive probing of wifi identifiers and using those against the Google SID to location database even when wifi was turned off.

There was even a note about this feature in the privacy policy, IIRC.

Makes you wonder how reliable airplane mode is.

Airplane mode doesn't turn off the radios, IIRC; it just stops transmissions.

Rumor is that even when your phone has been turned off, it can be turned back on remotely.

Perhaps people should be required to post a notice on their front door if their house has a Google surveillance device in it (or I suppose, verbally inform every visitor). It's common (and often required) for businesses to post notice that people on the premises are under video surveillance.

I have a couple of cameras, and at least one visitor has been uncomfortable with their presence, despite the fact they're not sending the data to a third party.