Is there any truly secure personal identifier?
If there were any criminal elements unaware of the potential for brute-force guessing of United States Social Security numbers , we can be sure they know about it now, as the news is everywhere. Thankfully, it’s still not particularly easy to do and has a low success rate : An SSN consists of nine digits, the first five of which are assigned by established criteria based in part on the zip code in which someone was born. Now Alessandro Acquisti and Ralph Gross of Carnegie Mellon Universit