@enigmatico re: PGP -- implementing it in organizations well is *difficult*. Things that can help *a lot*:
1. set up a Web Key Directory:
OpenPGP-enabled mail clients will (mostly) use it to pull keys automagically. Simplifies things greatly.
In large enough organization (say, above 20 people) makes verifying PGP keys of everyone not-impossible.
@rysiek It doesn't have to be Signal. People can also use matrix protocol. Rise of Slack, Teams and Discord shows people can work inter-organization with these systems. Militaries, healt and academic institutions in Germany, France and UK are already using matrix, which the only real competetor to the proprietary systems.
I think matrix is far far more secure than PGP ever was today.
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