“Encryption used in Apple’s iMessage chat service has stymied attempts by federal drug enforcement agents to eavesdrop on suspects’ conversations, an internal government document reveals. An internal Drug Enforcement Administration document seen by CNET discusses a February 2013 criminal investigation and warns that because of the use of encryption, ‘it is impossible to intercept iMessages between two Apple devices’ even with a court order approved by a federal judge.”
http://news.cnet.com/8301-13578_3-57577887-38/apples-imessage-encryption-trips-up-feds-surveillance/
