FaceTime Is End-to-End Encrypted
You may know that iMessage is end-to-end encrypted. What that means, essentially, is that only you and the recipient are able to view the contents of your messages. But iMessage isn’t the only secure communication Apple platform. FaceTime is encrypted, too.
All audio and video FaceTime calls are protected, which includes being jumbled up while en route to a user’s iPhone. The message won’t become readable until it reaches its recipient. Apple says that FaceTime uses a two-key encryption system that’s even more advanced than the one used on iMessage.