From what I can gather Signal, XMPP (Encrypted) and Matrix are the main software for secure communications.

Curious if there are any I've missed.

  • moreeni@lemm.ee
    ·
    11 months ago

    Neither Matrix nor XMPP are software, those are protocols. Alsp, there is no point in specifying that XMPP is encrypted without doing the same for Matrix, since you can exchange plain text messages there too.

    As for the actual question, here you go: https://www.privacyguides.org/en/real-time-communication/#criteria