When setting up your Keycard, you must set a six-digit Keycard PIN (personal identification number). It functions like a password to protect access to your Keycard.
Optionally, you can set a duress PIN to unlock a decoy wallet if someone forces you to unlock your Keycard. Check out About your Keycard PIN and duress PIN to learn more.
Changing your Keycard PIN or duress PIN follows the same procedure.