Set screen lock

Depending how you use your device, you may want to set some form of automatic screen lock to prevent unauthorized access. If a lock has been set, the screen locks when your device's display goes to sleep.

To adjust your lock settings:

  1. Go to Settings > Personal > Security > Screen lock.
  2. Touch the type of lock you want and follow the onscreen instructions.

If you've previously set a lock, you must enter the pattern, PIN, or password to unlock the lock settings.

You can choose among these lock options, listed in approximate order of strength:

  • Slide provides no protection, but lets you get to the Home screen or Google Now quickly.
  • Face Unlock lets you unlock your device by looking at it. This is the least secure lock option.
  • Pattern lets you draw a simple pattern with your finger to unlock the device.
  • PIN requires four or more numbers. Longer PINs tend to be more secure.
  • Password requires four or more letters or numbers. This is the most secure option, as long as you create a strong password.
Tip: After you set up Face Unlock, look under Settings > Personal > Security for two additional settings: Improve face matching and Liveness check. Use these to make Face Unlock more reliable and secure.

Password tips: For best security, specify a password that

  • Is at least 8 characters long.
  • Contains a mixture of numbers, letters, and special symbols
  • Doesn't contain any recognizable words or phrases.

Related settings

To change when your device goes to sleep, touch Settings  > Device > Display > Sleep.

To see your passwords when you input them, touch Settings  > Personal > Security > Make passwords visible.