> Airbnb prohibits indoor security cameras and recording devices, including audio, in most listings globally.
It should not be difficult to find a security camera. (Microphone is a different matter.) If you find one, you can report to AirBnB, and I am sure the renter will be immediately delisted. And, it is probably just plan illegal in many jurisdictions.
Security cameras (like Google Nest) are not the concern people have: hidden cameras are. It is possible to rig an entire property without any chance of guests finding the cameras. The scale at which it happens is a question (and varies based on country) but the illegality isn't the issue. The dissemination of videos and photos secretly recorded of guests and their children is the issue. There are people in prison for doing this but the damage is done, videos and photos of their guests are online forever.
and my point is that there is no reason to think this is enough of a problem that any well-adjusted person should factor it into the "should I use Airbnb?" calculation. If someone thinks that is an issue then I would assume they never use public bathrooms.
This is not a useful response. The intent of my comment was to say: If you are renting an AirBnB and you find "hidden" cameras, then you can first complain to AirBnB. If the local jurisdiction prohits cameras, then you can call the police to report it.