Flutterby™! : Compromised SSNs

Dave credits it to us, but I don't see mention of this here: A group at Carnegie Mellon says that guessing Social Security numbers is easy. Here's a MeFi entry, and the paper itself.

Of course the real idiocy is using the Social Security Number as an access mechanism to any sort of data in the first place. Its an identifier that's shared with enough people that there's no way it can remain secret.