PS4 System Restrictions
If children will be using your PS4™ system, parents or guardians can restrict use as necessary. To restrict use of PS4™ system features, select (Settings) > [Parental Controls/Family Management] > [PS4 System Restrictions].
You must enter the system restriction passcode to set or change feature restrictions. The default passcode is "0000". To prevent others from setting or changing feature restrictions, change the passcode.
This setting is applied to all users on your PS4™ system.
New User Creation and Guest Login
Allow only existing users to log in to your PS4™ system. Use this setting to prevent your children from creating and using unrestricted user accounts without permission.
Make use of a web filtering service that verifies the type and safety of sites when the Internet Browser is being used, and automatically prevents dangerous or harmful sites from being displayed.
Fees may apply for the use of services.
Default Parental Controls
Change the default parental control settings for new users and guests who haven't signed in to PlayStation™Network.
You can change parental control settings for users later. For details, see "Family Management".
Temporarily Disable PS4 System Restrictions
If you’re not able to connect to PlayStation™Network to change parental control restrictions, you can temporarily remove certain restrictions by entering your system restriction passcode. The restrictions are restored when you clear the checkbox, turn off your system, or put your system in rest mode.
Change System Restriction Passcode
You'll need to enter the new passcode twice.
If you forget your passcode, you must initialise the PS4™ system. Be careful with your passcode. Don't forget it, and make sure others don’t obtain it.