He isn't giving me any hard data or proof that password managers are superior other than "they are because I say so." I'd like to see statistics. It seems int

He isn't giving me any hard data or proof that password managers are superior other than "they are because I say so." I'd like to see statistics. It seems intuitive but often things that seem intuitive are not so. I can see many ways a central repository of ALL my passwords could be more disastrous than someone hacking my login at one site.