pgp two factor authentication

https://getsecuredarknetaccessguide.fotosdefrases.com/how-to-get-secure-darknet-access-a-practical-opsec-guide

PGP two-factor authentication adds an extra layer of security to your private keys by requiring both something you know (like a password) and something you have (like a hardware token or mobile app). This way, even if someone gets your passphrase, they still can't sign or decrypt without the physical second factor.