Identity theft - there is NO ESCAPE! hackers will comb through your mail, your garbage, your Gmail, your Facebook account, and do dastardly things with it.
Nothing is safe...
Except when they aren't. One study says they aren't geniuses, just wallet thieves / finders. So when they come across your purse that you left at Ri Ra, yup, that's where they got all your info (according to this, anyway).
So you can chill out.