PGP 2FA darknet
https://wiki-zine.win/index.php/How_Fawkes_Market_Escrow_Protects_Welsh_Buyers_on_the_Darknet
For darknet users, PGP encryption is already a given, but adding a second factor makes accounts way safer. Instead of just a password and a key, you need a time-based code from an app or hardware token. It stops someone from logging in even if they have your passphrase.