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# I don’t have an authenticator app on my phone. What should I do?

Two-factor authentication (2FA) in Granite can only be enabled using a compatible authenticator app. An authenticator app (such as Microsoft Authenticator or Google Authenticator) generates the changing six-digit code (2FA/MFA) required for logging in.

###### What to do
* Install an authenticator app on your phone (for example, Microsoft Authenticator, Authy, or Google Authenticator) from your app store.
* Go to the Granite login page and sign in with your username and password.
    * If 2FA is enabled, a QR code will be displayed on the screen.
* Open the authenticator app, add a new account (+), and scan the QR code.
    * The app will start generating changing one-time codes.
* Enter the six-digit code shown in the app to confirm your login.

###### Tips
| Make sure your phone’s time is set to automatic—incorrect time may prevent the code from being accepted.
The code changes approximately every 30 seconds—always use the most recent code.

Security:
||| Do not share the QR code or one-time codes with anyone.
Support will never ask for them.


|| For other issues or questions related to installing or using the authenticator app, your organization’s IT support can assist if needed.