It's not just those employed. A family member of mine has a security clearance, and let me know that I'd be one of the 20 million with my SSN exposed, since I was one of the people the government checked on when doing his clearance.

And DOB of your family member, unless the forms have changed. Also (not related to your family), when you're trying to identify yourself on the phone to a credit card or bank (etc.) because you are starting with them or "lost your password", they usually quiz you - almost all of the questions can be answered if you know the previous addresses.

This is what needs to change. Personal trivia can no longer serve as proof of identity. We need to make the personal data useless for identity thieves.