That’s pretty much what Apple does with both the PassKey and push notifications.
The PassKey is a bit better, because there’s no need to go through a broker server, like you do with push notifications, but the key is still connected with an individual user and device, so an association can still be established, with some difficulty.
If you don’t have the key or the ID stored on a server, then even that is not an issue.
The PassKey is a bit better, because there’s no need to go through a broker server, like you do with push notifications, but the key is still connected with an individual user and device, so an association can still be established, with some difficulty.
If you don’t have the key or the ID stored on a server, then even that is not an issue.