Passcode Management

Each user can register a different passcode. By registering a passcode, you can prevent use of the PS4™ system by other users or third parties. After you register a passcode, you must enter it when logging in to the PS4™ system.
This item is displayed after you have signed in to PSNSM once. You can set, change, or delete a passcode by selecting [Login Settings] > [Passcode Management].

This passcode is separate from the passcode for parental control.