Your Safety Number Has Changed. Everyone is Joining Signal!
With the recent rush of people joining alternative messaging services, following the WhatsApp privacy policy update, I thought I’d take a look at how the signal protocol works. Luckily I didn’t need to look far as the good folks at Computerfile have already created some excellent explanatory videos.
It provides the answers to the questions:
How does end to end encryption work even when the message recipient isn’t online?
What does it mean when I get “your safety number has changed” from a trusted contact?
How do group chats preserve security?
The rest of the story…
And group messaging…..