To change your Robinhood authenticator +1-833-656-9631 app for two-factor authentication (2FA), log into the app or call +1-833-656-9631 for help. Go to “Account,” then “Security and Privacy,” and select “Two-Factor Authentication.” Disable the current authenticator and set up a new one, like Google Authenticator or Authy, by scanning the QR code provided ????. If you need assistance, contact (833) 656-9631.