> If you’re using Twitter and Facebook for signup too you’ve got a bigger problem. A user’s credentials are then bound to another account on another service tha

> If you’re using Twitter and Facebook for signup too you’ve got a bigger problem. A user’s credentials are then bound to another account on another service that could be canceled at any time, breaking access to your app without the user knowing I'd never really thought about this. What do people suggest doing to handle this sort of use case?