3 ms·If you are talking to person A and they get a new phone, how do you know that happened?by ec109685 9y agoIf you are talking to person A and they get a new phone, how do you know that happened?abalone 9y agoYou don't, and it would arguably violate their privacy if you did. But they do.ec109685 9y agoWhat stops Apple telling your iMessage that person A got a new phone but not telling person A it is telling your iMessage that?abalone 9y agoSee earlier comment re: Apple as the adversary.