 Do you know what authentication is? Authentication is the process of verifying a user's identity. In other words, it means verifying that they are who they say they are. For example, when you go to the airport to catch a flight, you need to have a boarding pass and your password. The process of verifying that the information in these two documents matches is an authentication process. The most well-known type of authentication is called password authentication. That's where you usually provide a username and password to, let's say, a website. But there are other ways of authenticating. When you use a password, you would be using something that you know. But you could also authenticate by using something that you have, like a code from an authenticator app or an SMS that you go from your phone. You could also authenticate by showing something that you are, something that is inherent to you, like your fingerprint or even your face. Now you know what authentication is. This was Identity in a Minute.