What is end-to-end encryption and how does it work? - BBC News

WhatsApp, iMessage, Android Messages and Signal all use the super-secure system called end-to-end encryption. The technology means only the sender, at one end, and the receiver, at the other, can read messages, see media or hear phone calls. Even the app makers cannot access the content. But how does it work? Please subscribe here: http://bit.ly/1rbfUog #Encryption #BBCNews