Facebook Messenger begins testing end-to-end encryption using Signal Protocol
From what is written, I understand this to mean that users can select this feature for specific conversations. That not all messages are subject to this encryption.<p>I am not usually one for paranoia, but is anyone else becoming more suspicious about Facebooks motivations and involvement with gov? This feature is a massive boost for intelligence services dealing with unsophisticated actors. This reduces the haystack significantly, by users self flagging messages that may be incriminating. Multi-millions of FB messages must be sent every day, brute-forcing encryption on all of these is probably not possible. A small % marked as &#x27;secret conversation&#x27;? Much easier.<p>Why doesn&#x27;t FB just apply encryption on all messages? Surely they have the resources avail. Is it because this feature makes somebody else&#x27;s job a lot easier?
If my suspicions are correct, what sort of threats would this pick up. Are serious threats likely to use FB messages with &#x27;secret conversation&#x27; flagged to co-ordinate actions?