Now that the private keys have been moved to the Yubikey, it's time to configure some basic properties, such as changing the default management PIN (what GPG calls the Admin PIN) and also the regular PIN whenever the private key is accessed.
❯ gpg --card-edit gpg/card> admin Admin commands are allowed gpg/card> passwd gpg: OpenPGP card no. … detected 1 - change PIN 2 - unblock PIN 3 - change Admin PIN 4 - set the Reset Code Q - quit Your selection? 3 PIN changed. 1 - change PIN 2 - unblock PIN 3 - change Admin PIN 4 - set the Reset Code Q - quit Your selection? 1 PIN changed. gpg/card> q gpg/card> login foobar gpg/card> sex m gpg/card> name Cardholder\'s surname: Bar Cardholder\'s given name: Foo gpg/card> lang Language preferences: en gpg/card> login Login data (account name): foobar gpg/card> list gpg/card> quit