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Check or change security settings

You can help protect your Android phone or tablet by updating your security settings.

Note: Android isn't the same on all devices. These instructions are for devices running Android 7.0 and up. Check which version of Android you have.

Learn more about device security settings

You can manage most of your device's security settings in your device's Settings app Settings. Under "Personal," tap Security.

Security settings vary by device and version of Android.

Device security

  • Screen lock
    Learn how to set a screen lock.
  • Pixel Imprint (or Nexus Imprint)
    Use your fingerprint to unlock your device and authorize purchases. Learn how to set up fingerprints.
  • Smart Lock
    Set your device to automatically unlock in certain circumstances. Learn how to use Smart Lock.

Encryption, SIM cards, and passwords

Administrators and credentials


  • Trust agents
    Turn Smart Lock on or off.
  • Screen pinning
    You can pin a screen to keep it in view until you unpin it. Learn how to pin screens.
  • Apps with usage access
    Manage what apps have access to app-usage data on your device.

Lock screen message & emergency information

You can add a message and a link to emergency information to your lock screen. Learn how to put information on your lock screen.

Android Device Manager

If you lose your Android device, Android Device Manager can help you remotely find, lock, and erase it. Learn how to get started with Android Device Manager.

Device protection

You can set your device to prevent other people from using it if it gets reset to factory settings without your permission. Learn how to make sure your device is protected.


Amy is an Android expert and author of this help page. Leave her feedback below about the page.

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