Having a small gadget to attach to your keys and other valuables is not something new – Apple did not invent the idea – I have a couple of Tile devices attached to my keys and in my wallet so I can find those when I inevitably misplace them.
Now car thieves are using Apple AirTags to track high end cars before stealing them.
Apple AirTags being used by thieves to track high-end cars to steal | Ars Technica