Many identity providers add a second layer of security that you will encounter whenever you try to sign in from a new device.  They will not just ask for your password, but they will ask you to provide other information about your account, or even send a code to your phone.  That extra layer of security helps protect you against phishing attacks.  Some of the consumer identity providers who support these options include Google, Microsoft, Paypal, Symantec, Facebook, and Yahoo.  There are also many industry efforts and vendor offerings in this space.

<- Now show an account chooser list like the other vendor pages.  Here are some entries:

Add your solution <- Takes you to a page about why your company should be an OIDF member