This does not mean that it's secure. See for example http://www.zdnet.com/apples-imessage-encryption-claims-refuted-again-7000022105/ http://www.zdnet.com/apple

This does not mean that it's secure. See for example http://www.zdnet.com/apples-imessage-encryption-claims-refuted-again-7000022105/ http://www.zdnet.com/apples-imessage-encryption-claims-refut... and http://blog.cryptographyengineering.com/2013/06/can-apple-read-your-imessages.html http://blog.cryptographyengineering.com/2013/06/can-apple-re...