@Sioctan@realcaseyrollins OTR has mostly been done away with. signal's double ratchet is used on matrix (called olm there) and xmpp (called omemo there)
@realcaseyrollins Off-the-record messaging. https://otr.cypherpunks.ca/ It is encrypted chat over unencrypted chat protocols. It was a plugin for Pidgin, but I suspect there are newer and more similar plugin in use these days I am not aware off. :-)