Multi-factor authentication (MFA) or two-factor authentication (2FA) adds an extra layer of security to your accounts. With MFA, after entering your password, you will be prompted to provide another form of verification, such as a one-time password (OTP) generated by an app or a notification sent to your phone. This helps ensure that it is really you trying to access your account. The OTP codes have a 30-second timer and do not require an internet connection or drain your battery. You can use the Microsoft Authenticator app to store multiple accounts, including non-Microsoft ones like Facebook and Google.
If you want to go passwordless, you can use your phone to log into your Microsoft account. After entering your username, you will receive a notification on your phone to approve the login. You can then use your fingerprint, face ID, or PIN as a second form of verification. Once you have successfully completed the two-factor authentication process, you will have access to all your Microsoft products and services.
The Microsoft Authenticator app also has an autofill feature for passwords. By signing in with your personal Microsoft account, you can sync your passwords from Microsoft Edge and make the app your default autofill provider. Your passwords are protected with MFA, so you will need to verify your identity with your fingerprint, face ID, or PIN to access and autofill passwords on your phone. You can also import passwords from other password managers.
In some cases, your work or school may require you to use the Microsoft Authenticator app to access certain files, emails, or apps. You can register your device and add your work or school account to the app. The app also supports certificate-based authentication, which allows you to seamlessly and securely access additional Microsoft apps and services without having to log in again.
The Microsoft Authenticator app may request optional access permissions, such as accessibility service, location, camera, and access to your storage. These permissions are only used with your consent and are not required for the app to function. For more information, you can visit the FAQ page on the app's website.