This is a genius idea. In my opinion, facebook, twitter, google and others should work together to prevent their users to share a same password in their platfo

This is a genius idea. In my opinion, facebook, twitter, google and others should work together to prevent their users to share a same password in their platform. It would be a win win. Of course I have really no idea how to implement such a thing securely, since government platforms would obviously try to peek at how it would be done.