You don't want to steal an iPhone
RE: iPhone anti-theft. How exactly would this work outside of phones?
An iPhone is a cellular phone, connects to wifi and bluetooth, is a computer, and a GPS unit. It knows where it is, if it's been purchased, can detect movement outside of a geo-fenced area, can phone home to alert Apple it's been stolen, then contains code to deactivate/brick the phone. The phone also costs over $1000 and Apple is the designer, responsible for the build, and controls sale of the items.
So, how do you provide this level of protection for a screwdriver, a bag of cereal, or a blouse? Who pays for the extra security?
Items are already tagged with RFID tags that alert the store an item has left the building. Why not put a tag on everything? Well think about the time it takes to remove/deactivate the tag on higher cost items (double scans and/or physically remove a tag). Scale that up to 'every item in the store' and it becomes unworkable pretty quickly.
Let's not forget that the hysteria over retail theft is likely overblown and possibly the fault of the store (fewer cashiers, more self-checkout). (https://www.cnn.com/2023/01/18/business/retail-shoplifting-shrink-walgreens/index.html)
The idea you propose sounds pretty great but I think on closer inspection it'll be difficult and costly to implement. If you have specific ideas, I'm all ears.
I love this. I hope by the time I have to replace my camera body camera's will have this kind of technology. I don't suppose you could do it with lenses but still.
On a different note, the speck of dust that had appeared on my iPhone telephoto lens has miraculously disappeared. I swear it was on the sensor since cleaning it multiple times on the outside did nothing. but I'm glad it's gone - I hope it doesn't reappear elsewhere!