It's interesting to see how well they've managed to lock this down. You're able to view a list of usernames with access to the machine (or domain?) that your account is on. http://imgur.com/t1IP02T
I don't know how he got there but I can get a similar list by getting a Browse dialog out of Downloads and going to the security settings for a folder and looking at the dialog for selecting users to add to a folder's ACL.
