Configuring two-factor authentication
You can choose among multiple options to add a second source of authentication to your account.
You can configure two-factor authentication using a mobile app or via text message. You can also add a security key.
We strongly recommend using a time-based one-time password (TOTP) application to configure 2FA. TOTP applications are more reliable than SMS, especially for locations outside the United States. TOTP apps support the secure backup of your authentication codes in the cloud and can be restored if you lose access to your device.
Configuring two-factor authentication using a TOTP mobile app
A time-based one-time password (TOTP) application automatically generates an authentication code that changes after a certain period of time. We recommend using cloud-based TOTP apps such as:
https://help.github.com/en/github/authenticating-to-github/configuring-two-factor-authentication