There are three ways to authorized access to a protected account: things you know (like a password); things you have (authenticator app or USB Key); and something you are (biometrics). Requiring two of these "things" to gain access to a valuable account or file is called Two-Factor Authenication (or 2FA).
https://sea.pcmag.com/news/28804/why-arent-you-using-two-factor-authentication
