Biometric devices encompass a wide range of technologies that need to read a particular part of your body before you can access something like a device, account, building, or room. Most of the time, this means using a fingerprint—though there are other forms of biometrics, such as optical scanners and temperature readers.
Biometrics have an inherently strong advantage over traditional security methods, such as passwords. A fingerprint, for example, is far more secure and convenient than entering a username and password, and it’s almost impossible to duplicate the needed authentication method. When your fingerprint is the key, only your fingerprint will work. Compare this to a password, which can be cracked or guessed and even shared among cybercriminals or other unauthorized users without your knowledge....
