If Microsoft is miffed that it's YouTube channel was hacked over the weekend, it should try putting the incident in perspective and be glad its videos weren't replaced with hardcore pornography like what happened to Sesame Street's YouTube account last week. A less ornery hacker instead chose to remove Microsoft's videos and replace them with mostly G-rated clips around 3 or 4 seconds in length imploring users to add video responses, create background images for the channel, and other benign requests.
There was some mature content in the form of videogame violence mixed in. According to security firm Sophos, a short video entitled "Bingo" shows a scene in L.A. Noire where a character shoots another one in the head.
The person responsible for hacking the account posted a message that read:
"I DID NOTHING WRONG I SIMPLY SIGNED INTO MY ACCOUNT THAT I MADE IN 2006 :/"
One theory as to how he broke into Microsoft's YouTube channel is that he created it back before YouTube was popular and that it might have still been linked to his email address. He could then use that email address to recover the account.