Basically OAuth, which allows you to prove to one site (e.g. a merchant) that yo...

		wmf on Nov 17, 2016 \| parent \| context \| favorite \| on: Site requests bank logins for online purchases Basically OAuth, which allows you to prove to one site (e.g. a merchant) that you have an account at another site (e.g. a bank in this case). http://designingsocialinterfaces.com/patterns/The_Password_A...