How do I use an authentication app for two-factor authentication?

When you turn on two-factor authentication, you're asked to choose either text message (SMS) codes or a third-party authentication app as your primary security method. A third-party authentication app (such as Duo Mobile or Google Authenticator) can be used to generate login codes that help us confirm it's you when you log in from a new device for the first time.

To use a third-party authentication app for login codes:

  1. Go to your profile and tap .
  2. TapSettings.
  3. Scroll down and tap Two-Factor Authentication.
  4. If you haven't already turned two-factor authentication on, tap Get Started.
  5. Tap next to Authentication App, then follow the on-screen instructions.
  6. Enter the confirmation code from the third party authentication app to complete the process.
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