> The chat feature has existed for a short while, too, which deserves more fame as being an e2e encrypted multi-device IM system that isn't tied to your phone number.
On the other hand, it doesn't feature forward secrecy.
On the other hand, it doesn't feature forward secrecy.
(by signal public key I mean that your safety number with any given person is always a concatenation of a string that identifies you and a string that identifies them and you'll find that same string across your safety numbers with all your contacts)