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Molly - a better signal
(molly.im)
Privacy has become a very important issue in modern society, with companies and governments constantly abusing their power, more and more people are waking up to the importance of digital privacy.
In this community everyone is welcome to post links and discuss topics related to privacy.
much thanks to @gary_host_laptop for the logo design :)
It depends, E2EE is mostly a client thing and most of them implement OMEMO as a standard: https://omemo.top/
OMEMO is XMPP's take on the double ratchet algorithm (very similar to Signal's), MLS is in the works as the hot new cross-protocols standard (but is inferior to OMEMO:2 when it comes to metadata encryption), PGP is often an option for the cases where perfect forward secrecy isn't desired, and OTR is still used in niche cases when you want E2EE across protocols.
In fact, E2EE was a thing in XMPP world since about 10 years… before Signal existed.