Stuff to be aware of, and a good piece of advice. Just cause someone asks for it, doesn't mean they need it.
http://www.msn.com/en-us/news/itinsider/if-youve-recently-done-one-of-these-things-youre-at-a-higher-risk-for-having-your-identity-stolen
"A lot of people think that just because they've been asked for information, they have to provide it," she says. "Before automatically giving it away, ask why. A lot of times, they won't have an answer. And maybe you'll be encouraging them to change their security standards."