Apple is taking steps to make the use of its AirTags for illicit purposes harder. Although displaying a warning when the device is first set up, about the use of the devices for unauthorised tracking may be illegal in some countries, will probably be completely useless as a deterrent if it has already been purchased to do just that!
Changes in the way the software alerts people to AirTags being active near them is the way forward.
Apple moves to stop AirTag tracking misuse – BBC News