MediaWiki:Twofactorauth-text

This allows you to enable or disable two-factor authentication. If you are enabling two-factor authentication, scan the QR code below (or enter the secret manually) into your device. Then enter a token in the field to verify. If disabling two-factor authentication, enter a token in the field to verify and disable.

You will need an app like Google Authenticator to generate tokens for you. Although it's designed to work with Google's two-factor authentication, it will work with 's too. Install the version of Google Authenticator relevant to your device, and scan the QR code below to automatically import the necessary settings.