10.FingerPrint Locks

The fingerprint is one of the most common entries for authorization. The use of biometric data for authorization confirms the physical existence of individuals by using an element that is relatively inseparable from them.

In addition, biometric data provides security to the person by using data specific to almost every individual. Leaving aside the legal usage limits of biometric data, these features highlight the use of fingerprints over other second-factor tools. 

Here's how you can set up your fingerprint scanner on Linux using PAM (Pluggable Authentication Modules).