[otakucode]

Heh, it actually changed while I was in college. As a CS student, one of the required courses was a 'Computers and Society' course which was basically sort of like a 'where ethics meets technology' course, talking about the social impact of code and computing. The kind of thing many people today seem to have need to attend. But anyhow, during it we mentioned 'hey, why are our student IDs, used everywhere, our SSNs? Isn't that unsafe?' and we actually ended up getting it changed.

Didn't stop some professors from continuing to use them. I had one prof who would use the last 4 digits (oh, only the last 4, those aren't the most important ones or anything) as a way to post psuedoanonymous grades after tests.