Don't use email to send secret messages.
Re:PGP needs to be retired in honor
by thaumasiotes on Friday February 24, 2017 @01:51AM
(#13721620)
Any chance you could elaborate on this? What about email is inimical to secret messages? Why are they less secret over email than through some other medium?
Signal the protocol or Signal the service? There does not appear to be a mature FOSS toolchain for the former that can replace gnupg and Thunderbird/Enigmail, and the latter is only available on Android and IOS smartphones.