While I was an undergrad there, there was an incident with social security numbers being revealed on parking mailers that were sent out (http://marylandrha.blogspot.com/2008/07/social-security-numb...)
At the time I was wondering why the heck do people sending out parking mailers have access to my SSN?
After seeing this article I'm again wondering why the heck does the university retain SSN for alumni?
edit: the reason I mention this is because I think having reasonable data policies in place can help mitigate the severity of such events