> multi-client encryption is hard It's taken a few years, and there may be a few bugs left that I don't know about (out of sight, out of mind), but Matrix uses

> multi-client encryption is hard It's taken a few years, and there may be a few bugs left that I don't know about (out of sight, out of mind), but Matrix uses the same double-ratchet encryption, and has solved multi-client encryption with cross-signing. Some clients may be imperfect, but this is the price we pay for being able to develop other clients - something Signal steadfastly refuses.