Biometrics
Biometrics refers to security technologies that use unique physical characteristics to identify a person. In smartphones, biometrics are used to unlock the device or confirm the user’s identity.
Common examples include fingerprint scanning and face recognition.
How it works
Biometric systems scan a physical trait, such as a fingerprint or a face, and convert it into digital data. This data is securely stored on the device.
When authentication is needed, the system compares a new scan with the stored data. If they match, access is granted.
Why it is important
- It improves smartphone security.
- It allows faster unlocking compared to passwords.
- It reduces the need to remember complex codes.
Biometric data is usually stored securely inside the device to protect user privacy.
Simple example
Biometrics works like using a personal physical key — only the correct fingerprint or face can unlock the phone.
Related terms
- What is Face Recognition?
- What is Fingerprint Sensor?
- What is Two-Factor Authentication (2FA)?
Source
Information simplified from the Wikipedia article “Biometrics”.