>it's true for iMessage as well Are you sure about that? I was under the impression that, according to the security white paper released by Apple, that the key

>it's true for iMessage as well Are you sure about that? I was under the impression that, according to the security white paper released by Apple, that the key is generated on-device in the Secure Enclave and that Apple never has access to it. The Enclave itself also doesn't have network access so there's no way for that to be transmitted anywhere by any other means except for physical access, which is also limited in the hardware.