Authentication factors can be classified into three groups: something you know: a password or personal identification number (PIN); something you have: a token, such as bank card; something you are: biometrics, such as fingerprints and voice recognition.

Here is a list of the most common password authentication methods, with a brief explanation of how each one can work for your customers.

  1. Standard password authentication. …
  2. Two-factor authentication (2FA) …
  3. Token authentication. …
  4. Biometric authentication. …
  5. Computer recognition authentication. …
  6. CAPTCHAs

 

These factors include:

  • Something you know, such as a password, passphrase or personal identification number (PIN)
  • Something you have, such as a token or smartcard.
  • Something you are, such as a biometric like a fingerprint.

Password authentication is a process that involves a user inputting a unique ID and key that are then checked against stored credentials. You’ve likely been asked to create and/or enter a password to gain access to a personal account, whether that’s a social media platform or an online banking tool.