Here is a follow-up video regarding the authenticator app showing you how to set it up for your Google login. This is another option for 2-step verification, perfect for those who don't have cell coverage to receive the code text message. That's right. It works offline! For most systems, it is completely optional, but we are learning some system vendors are making it mandatory. It takes a bit of getting used to so try it out and ask for help if needed.