Maximum PC: Perhaps, as one Twitter user commented, "Whopper123" isn't a secure password. Whatever password Burger King was using to lock down its Twitter account, hackers figured it out and promptly got to work with a McDonalds themed makeover. The cyber pranksters changed Burger King's Twitter handle and avatar, and posted a series of fake tweets, one of which claimed the fast food joint had been sold to McDonalds. (Burger King, Culture, McDonalds, Services, Twitter, Web)