Understand fingerprint security
Your fingerprint data is stored securely and never leaves your Pixel or Nexus phone. Your fingerprint data isn't shared with Google or any apps on your device. Apps are notified only whether your fingerprint was verified.
If you're ready to get started using your fingerprint to unlock your phone, learn how to set up your fingerprints.
Cautions about fingerprints
Fingerprints are an easy way to unlock your phone. But a fingerprint may be less secure than a strong PIN, pattern, or password.
A copy of your fingerprint could be used to unlock your phone. You leave fingerprints on many things you touch, including your phone.
Fingerprint data is stored securely
Google has strict guidelines for device makers about how fingerprint data can be stored on a Pixel or Nexus device.