When I first read about this (some weeks ago) it seemed to me that it was more likely a database failure since the address fields in the accounts were all being

When I first read about this (some weeks ago) it seemed to me that it was more likely a database failure since the address fields in the accounts were all being set to the same thing. That is, valid purchases were being made, but the wrong account was being charged/edited. Of course, I have no proof of this. It simply struck me as strange that a hacker would reset the town to the same thing in the accounts. What purpose, unless it was the hacker's signature.