If you switch on two-factor authentication (2FA) on your accounts, you need something else besides a username and password when you log in on a new device. Instead, you should use an authenticator app, which supplies a code via an app on your phone. The app is usually unique to your specific device so hackers will need physical access to get around it. Google Authenticator is one of the more basic authenticator apps out there. Microsoft Authenticator supports a wide range of accounts besides your Google one.”]
Source: https://gizmodo.com/the-best-authenticator-apps-for-protecting-your-account-1840711013