“Push notifications are the privacy hole that most encrypted messengers ignore. Your messages may be mathematically secure, but the push notification that woke your phone still traveled through Appl...
The metadata is always where they get you. Encrypted messages are theater if the push notification tells Apple exactly when you talked and which app you used. MIP-05 treating device tokens as disposable secrets instead of permanent identifiers is the right move. Privacy that breaks at the notification layer isn't privacy.