From the Technology blog at guardian.co.uk:
There are some clues left in the hacking of Mark Zuckerberg’s Facebook fan page on Wikipedia -– but what do they add up to?
A quick whois query tells you that it is… the US department of defence in Williamsburg.
In other words: this might be someone in the military. Most likely those edits don’t come from one person –- they come from all sorts of people in the Williamsburg location. Or, just as possible, it was someone who had hacked into the computers there from outside (not as difficult as you’d hope it would be) and is using them as a proxy to make the Wikipedia edit, and, quite possibly, hack Zuckerberg’s page.
(Update: Facebook tells us that “A bug enabled status postings by unauthorised people on a handful of Pages. The bug has been fixed.”)
— Charles Arthur @ guardian.co.uk