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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.

Warning:

  • If you're a member, billing manager, or outside collaborator to a private repository of an organization that requires two-factor authentication, you must leave the organization before you can disable 2FA on GitHub.com.
  • If you disable 2FA, you will automatically lose access to the organization and any private forks you have of the organization's private repositories. To regain access to the organization and your forks, re-enable two-factor authentication and contact an organization owner.

If you're a member of an enterprise with managed users, you cannot configure 2FA for your managed user account account unless you're signed in as the setup user. For users other than the setup user, an administrator must configure 2FA on your identity provider (IdP).

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:

Tip: To configure authentication via TOTP on multiple devices, during setup, scan the QR code using each device at the same time. If 2FA is already enabled and you want to add another device, you must re-configure 2FA from your security settings.

  1. Download a TOTP app.

  2. En la esquina superior derecha de cualquier página, haga clic en la foto del perfil y, luego, en Settings (Configuración).

    Icono Settings (Parámetros) en la barra de usuario

  3. In the "Access" section of the sidebar, click Password and authentication.

  4. En "Autenticación en dos fases", haga clic en Habilitar la autenticación en dos fases. Opción Habilitar la autenticación en dos fases

  5. Under "Setup authenticator app", do one of the following:

    • Scan the QR code with your mobile device's app. After scanning, the app displays a six-digit code that you can enter on GitHub Enterprise Cloud.
    • If you can't scan the QR code, click enter this text code to see a code that you can manually enter in your TOTP app instead. Click enter this code
  6. The TOTP mobile application saves your account on GitHub.com and generates a new authentication code every few seconds. On GitHub Enterprise Cloud, type the code into the field under "Enter the six-digit code from the application". TOTP enter code field

  7. En "Guardar los códigos de recuperación", haga clic en Descargar para descargar los códigos de recuperación al dispositivo. Guárdalos en una ubicación segura, ya que tus códigos de recuperación pueden ayudarte a volver a tu cuenta en caso de que pierdas el acceso. Lista de códigos de recuperación para descargar

  8. Después de guardar los códigos de recuperación de dos fases, haga clic en He guardado mis códigos de recuperación a fin de habilitar la autenticación en dos fases en la cuenta.

  9. Optionally, you can configure additional 2FA methods to reduce your risk of account lockout. For more details on how to configure each additional method, see "Configuring two-factor authentication using GitHub Mobile" and "Configuring two-factor authentication using a security key". Additional two-factor methods section

  10. Después de que hayas guardado tus códigos de recuperación y hayas habilitado la autenticación bifactorial, te recomendamos salir y volver a entrar en tu cuenta. En caso de encontrar problemas tales como olvidar tu contraseña o un error de escritura en tu dirección de correo electrónico, puedes utilizar los códigos de recuperación para acceder a tu cuenta y corregir el problema.

Configuring two-factor authentication using text messages

If you're unable to authenticate using a TOTP mobile app, you can authenticate using SMS messages. You can also provide a second number for a fallback device. If you lose access to both your primary device and your recovery codes, a backup SMS number can get you back in to your account.

Before using this method, be sure that you can receive text messages. Carrier rates may apply.

Warning: We strongly recommend using a TOTP application for two-factor authentication instead of SMS. GitHub Enterprise Cloud doesn't support sending SMS messages to phones in every country. Before configuring authentication via text message, review the list of countries where GitHub Enterprise Cloud supports authentication via SMS. For more information, see "Countries where SMS authentication is supported".

  1. En la esquina superior derecha de cualquier página, haga clic en la foto del perfil y, luego, en Settings (Configuración).

    Icono Settings (Parámetros) en la barra de usuario

  2. In the "Access" section of the sidebar, click Password and authentication.

  3. En "Autenticación en dos fases", haga clic en Habilitar la autenticación en dos fases. Opción Habilitar la autenticación en dos fases

  4. Below "Setup authenticator app", select SMS authentication

    2FA SMS alternative option

  5. Under "Setup SMS authentication", select your country code and type your mobile phone number, including the area code. When your information is correct, click Send authentication code.

    2FA SMS screen

  6. You'll receive a text message with a security code. On GitHub Enterprise Cloud, type the code into the field under "Enter the six-digit code sent to your phone" and click Continue.

    2FA SMS continue field

  7. En "Guardar los códigos de recuperación", haga clic en Descargar para descargar los códigos de recuperación al dispositivo. Guárdalos en una ubicación segura, ya que tus códigos de recuperación pueden ayudarte a volver a tu cuenta en caso de que pierdas el acceso. Lista de códigos de recuperación para descargar

  8. Después de guardar los códigos de recuperación de dos fases, haga clic en He guardado mis códigos de recuperación a fin de habilitar la autenticación en dos fases en la cuenta.

  9. Optionally, you can configure additional 2FA methods to reduce your risk of account lockout. For more details on how to configure each additional method, see "Configuring two-factor authentication using GitHub Mobile" and "Configuring two-factor authentication using a security key". Additional two-factor methods section

  10. Después de que hayas guardado tus códigos de recuperación y hayas habilitado la autenticación bifactorial, te recomendamos salir y volver a entrar en tu cuenta. En caso de encontrar problemas tales como olvidar tu contraseña o un error de escritura en tu dirección de correo electrónico, puedes utilizar los códigos de recuperación para acceder a tu cuenta y corregir el problema.

Configuring two-factor authentication using a security key

Después de que configures la 2FA, utilizando una app de contraseña de una sola ocasión limitada en tiempo (TOTP) o mediante mensaje de texto, puedes agregar una llave de seguridad, como una huella dactilar o Windows Hello. La tecnología que habilita la autenticación con una llave de seguridad se llama WebAuthn. WebAuthn es el sucesor de la autenticación bifactorial y funciona en todos los buscadores modernos. Para obtener más información, vea "WebAuthn" y "Puedo usar".

On most devices and browsers, you can use a physical security key over USB or NFC. Some browsers can use the fingerprint reader, facial recognition, or password/PIN on your device as a security key.

Authentication with a security key is secondary to authentication with a TOTP application or a text message. If you lose your security key, you'll still be able to use your phone's code to sign in.

  1. You must have already configured 2FA via a TOTP mobile app or via SMS.

  2. Ensure that you have a WebAuthn compatible security key inserted into your computer.

  3. En la esquina superior derecha de cualquier página, haga clic en la foto del perfil y, luego, en Settings (Configuración).

    Icono Settings (Parámetros) en la barra de usuario

  4. In the "Access" section of the sidebar, click Password and authentication.

  5. Next to "Security keys", click Add. Add security keys option

  6. Under "Security keys", click Register new security key. Registering a new security key

  7. Type a nickname for the security key, then click Add. Providing a nickname for a security key

  8. Activate your security key, following your security key's documentation. Prompt for a security key

  9. Confirm that you've downloaded and can access your recovery codes. If you haven't already, or if you'd like to generate another set of codes, download your codes and save them in a safe place. For more information, see "Downloading your 2FA recovery codes."

  10. Después de que hayas guardado tus códigos de recuperación y hayas habilitado la autenticación bifactorial, te recomendamos salir y volver a entrar en tu cuenta. En caso de encontrar problemas tales como olvidar tu contraseña o un error de escritura en tu dirección de correo electrónico, puedes utilizar los códigos de recuperación para acceder a tu cuenta y corregir el problema.

Configuring two-factor authentication using GitHub Mobile

You can use GitHub Mobile for 2FA when signing into your GitHub account in a web browser. 2FA with GitHub Mobile does not rely on TOTP, and instead uses public-key cryptography to secure your account.

Once you have configured a TOTP application, or SMS, you can also use GitHub Mobile to authenticate. If, in the future, you no longer have access to GitHub Mobile, you will still be able to use security keys or TOTP applications to sign in.

  1. You must have already configured 2FA via a TOTP mobile app or via SMS.
  2. Install GitHub Mobile.
  3. Sign in to your GitHub Enterprise Cloud account from GitHub Mobile.

After signing in, you can now use your device for 2FA.

Further reading