But like many things in life, this authenticator too must pass. In this specific case, this authenticator must pass between the jaws of my dog. It didn't work so well after Sylvanas got done unleashing some Dark Puppy-level fury on it.
If you too find yourself needing to replace your trusty old authenticator, here's how you get it done. In this case, we're replacing the old sexy keyfob with a new, nearly-as-sexy iPhone authenticator app.