 Two-factor authentication protects your accounts with both your password and your mobile phone. Make sure that nobody can log into your account even if they have access to your password or your email. To set it up, you'll need a mobile phone and an app like Google Authenticator. Navigate to account settings and select Configure Add-ons. Use your Authenticator app to either scan the barcode or input the secret code that we provide. Then, input the six-digit access code that the app provides. You have successfully set up two-factor identification. Now, when you log in, you will have to provide a six-digit number provided by your phone. Pay attention because that number will change every minute or less.