The Airbnb one is definitely illegal in the US.

Please tell me more about these. A quick search yields individual cameras, but I don’t see exactly what you’re mentioning.

Buy a Pixel second hand. Then you’re just reimbursing someone who already made that mistake. ;)

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So how do newer cars send this info back? Do they have their own transmitters? Or are they uploading data via my wifi while parked in my garage? If so, can I just block the vehicle’s MAC on my network?