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 . Under "Personal," tap Security.
Security settings vary by device and version of Android.
- Screen lock
Learn how to set a screen lock.
- Nexus Imprint
Use your fingerprint to unlock your device and authorize purchases. Learn how to set up Nexus Imprint.
- Smart Lock
Set your device to automatically unlock in certain circumstances. Learn how to use Smart Lock.
Encryption, SIM cards, and passwords
- Encrypt phone or Encrypt tablet
Learn how to encrypt data on your device.
- Set up SIM card lock
Set up a PIN to lock your device's SIM card.
- Make passwords visible
This can help you enter passwords that are more complex and secure.
Administrators and credentials
- Device administrators
See or remove people who can administer your device.
- Unknown sources
Allow installation of apps from sources other than the Play Store.
- Credential storage
Manage, install, or clear certificates on your devices. Learn how to work with certificates.
- 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.
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.