Re: own domain and use a unique LHS
There are problems to just using a password. Some that come to mind...
- How to reset forgotten password.
- You phone a company because something can't be done online. How do you identify which account you use without also telling the cell centre staff your password?
- When signing up for an account if, by pure chance, you pick a password that someone else is using the site needs to say you can't use it, but you now know it's a valid account and you have access to it.