To change your restrictions passcode on an iPhone, you'll need to go into your Settings. Where you go from there depends on your iOS version.

Your face makes for a very good security check, but your passcode remains a weak spot. Here's how to change it to keep your iPhone data safe by changing your lock screen passcode.

You might set up Screen Time to put a bar in front of yourself from spending too much time on apps. What if you forget its passcode?

Forgot your iPhone Screen Time passcode? Learn how to reset it quickly with this step-by-step guide, including organizational tips.

If you aren't sure you entered your Apple ID and password when setting up Screen Time on your own device, reset it this moment.

Or, you can turn off using a passcode entirely if you wish by tapping Change Screen Time Passcode > Turn Off Screen Time Passcode. Then, enter your passcode to have it turned off.

With Screen Time you can also create a dedicated passcode to secure settings, so only you can extend time or make changes.

Any time you try to change the settings, or get more time on apps past the limit, you’ll have to enter the passcode. To set one, scroll down from Screen Time, select “Use Screen Time Passcode ...

With a passcode set, return to the Screen Time settings page and select App Limits > Add Limit > select the category All Apps & Categories and set the time limit to one minute.

Learn how to use Screen Time in iOS 12. This new feature lets you control how much you use your phone and when you use it, and it's an epic parental control suite for the iPad and iPhone.