First of all, to the original poster, yes, like every1 is saying, if you open an account in your name, your SS#, they will find out.
Two, it is amazing how little ppl have gone to jail for. I know this secretary, her and her bf, traded on som proprietary banking information that she was doing photocopying for. They made 35k, she went to jail for 3 yrs, and him 18 months.
Three, even tho you don't work in a department that has proprietary information, you inevitably come across them anyways. I was head of technology strategy at an ibank, in IT! One, i had bankers constantly asking us about our "opinion" on this take over or that. And I have this unfortunate coincidence, that my name is *exactly* the same as head of oil and gas investment banking, except middle initial, half world away. So 3-4 times a month, I would get to work, and find that I am copied on some highly confidential, financials, offering memos, valuation sheets, etc. And some of them are marked Urgent, need Comment by Morning. I have this fun little phone tag routine with him and his secretary after a while, his secretary wld be like "oh gosh, they sent it to you, again??"