I have a WordPress site. I have login available via Facebook, Twitter, WordPress, Yahoo, and Google.
When a user logs into my site via Social Login they get a screen from their account service - Facebook, Twitter, Google, etc
that asks to grant my site permission to access contacts, etc. I don't need any of that info, I don't want access to anything. --->I think I just figured this part about access to user info out.
Also, each time a registered user logs in they must go through the same process - grant my site permission to access their information etc. again.