Either you are understanding or misunderstanding something about this story, or I am.
Scenario: Bad guy wants to track you or me. They buy AirTags and sneak one on us. The story seems to say that our iDevice would notice we're being tracked and alert us that an AirTag that is not ours seems to be moving along with us.
That seems good. It addresses the stalker issue that the new programming in this story seems to be about.
Scenario 2: a bunch of people with AirTags are all riding along with you or me on a train, a bus, a street car, subway, walking along as a group, in a tour group, in a long line at the airport, in long lines at theme parks, on the cruise ship with us, etc. How does this new programming know that those people are not stalkers trying to track you or me? It seems like it couldn't really tell the difference. Do you or me get upwards of a bunch of alerts that we might be being stalked by these other people's AirTags that just happen to be moving along with us (because they are)? AND does pretty much everyone else in that crowd also get a bunch of stalker notifications because they too seem to be followed in fairly close proximity with these other people's AirTags?
And while we could assume that that's why we're getting potential stalker notifications... AGAIN... imagine the creeping doubt for some wondering if it really is that... AGAIN... or if someone has snuck an AirTag on them somewhere. So then we need to spend some time fully checking ourselves head to toe just to be sure. How many times do we do that thorough self-check before this is driving us bonkers?
See the problem I think I see with this story? Or am I missing something?
The stalking thing is not tied to an AirTag being right on our persons. For example, there's already been some stories where one was attached to someone's car. That conceivably puts several feet between the stalked person and the AirTag. Presumably, this story says that that scenario should trigger a notification to warn the stalked. Now, put the same person in the smallish crowd where lots of other people have their own AirTags perhaps on keychains or in wallets/purses and such within the assumed, potential stalking distance. Do potentially stalked warnings fly to everyone? Conceptually YES.
I find myself in a variety of situations where strangers are in comparable proximity to me for periods of time. Am I feeling hassled by notifications warning me of potential stalking because these other people have AirTags on them (not associated with my iDevice)? Are they feeling hassled too because whoever around us with AirTags on them could also be interpreted as potentially "following" them, and thus they are getting "you may be being stalked" notifications?
A popular use of AirTags is to put them on a dogs collar. Imagine the poor dog walkers walking multiple dogs with other people's AirTags in some collars, which- apparently to this system- seem to be "following" them along. The poor dog walker entrepreneur might be getting notification after notification warning them that they may be being stalked.
And that's just ONE scenario. There's so many like that. Is the luggage cart driver at the airport getting potential stalker notifications because AirTags in luggage on the carts behind them seem to be following them? That should be proximity equivalent to stalkers putting AirTags on cars.
Someone sends a package to someone else and, for whatever reason, they tuck an AirTag inside. Is the poor mailman/UPS/FEDEX delivery person getting "you might be being stalked" notifications EVERY DAY because some boxes in their truck have AirTags in them and seem to be following the driver?
Are the truckers with tons of packages in their truck getting "you may be being stalked" notification for the same reason?
And on and on.
Note that all of this is not me putting down Apple, AirTags or even the concept of trying to resolve the stalking scenario. This apparent remedy to that problem though SEEMS like it brings a LOT of potential hassles... what SEEMS like it will be a LOT of "boy who cried wolf" notifications where one is not really stalked, but the system suspects it because someone in the group moving along with them remains close enough that it MIGHT be a stalking scenario. I foresee too many false notifications that results in just ignoring them and/or seeking apps that will block that type of notification due to the hassle of "wolf!" "wolf!" "wolf!" "wolf!" "wolf!"