Their iMessage encryption is fascinating. It basically makes it impossible to retroactively decrypt iMessages. With a court order, they can start MITMing conver

Their iMessage encryption is fascinating. It basically makes it impossible to retroactively decrypt iMessages. With a court order, they can start MITMing conversations, but unless they intentionally generate a MITM keypair they are cryptographically locked out of the conversation. http://techcrunch.com/2014/02/27/apple-explains-exactly-how-secure-imessage-really-is/ http://techcrunch.com/2014/02/27/apple-explains-exactly-how-... (Link to Apple's paper is in the article) (Yes, Apple could add this key for everybody at the beginning, but if their intention is security then it is a brilliant system.)