>A couple of months later, one of the members of the team who had interviewed this guy flew out to where he was working, and discovered that the guy sitting in the cube doing the work was not the guy they had interviewed. It was someone else.

This seems absolutely incredible to me (just in the slang sense, I don't mean that I'm incredulous). I mean it's way more than enough for the company to sue for fraud the (highly qualified) person who showed up to the interview, or to sue the person doing it. TBH if I were that company I would likely sue for damages. I mean it's just so blatant and goes so far.

I've never heard of this. So I would be curious if you would reply with a somewhat more detailed write-up (maybe 1 or 2 paragraphs) of anything else you know about that case! But, maybe you've mentioned everything already. (You said a friend of yours told you about this case, so I realize we are reading this third-hand.) I would just be really interested if you could mention anything else you remember.