Graphene uses 3 kinds of unlock methods - if you choose to use them.
The main password/pin unlock you’d see whenever you first unlock your phone.
A biometric fingerprint to use after first unlock.
And Graphene has a secondary pin so that it requires a code AFTER using your fingerprint.
This duress password and pin (you have both options) can be used at first unlock or whenever it prompts for the password and after biometrics where it asks for the secondary pin.
Graphene uses 3 kinds of unlock methods - if you choose to use them.
The main password/pin unlock you’d see whenever you first unlock your phone.
A biometric fingerprint to use after first unlock.
And Graphene has a secondary pin so that it requires a code AFTER using your fingerprint.
This duress password and pin (you have both options) can be used at first unlock or whenever it prompts for the password and after biometrics where it asks for the secondary pin.
Both will wipe your phone.