What is Google Authenticator

Google Authenticator is a appication installed on the user's phone or tablet for multi-factor authentication.

 

It generates time-based one-time passwords that can be used to log into websites or other applications.

 

It works by using two-factor authentication (2FA), where the user provides a password (or something they know) and a verification code (something they have) to log in. This makes it more difficult for unauthorized users to access the user's account, as they can't log in just with a password.