Hotmail account hijacking has been a big thing in the past, even my Dad was affected when a Chinese hacker got into his account and changed his passwords. Thankfully - having changed languages in options - we were able to go back through each option (obviously in Chinese) and recover the account - some people however, are not so lucky.
Microsoft has updated it's security on Hotmail, and flushed out a tonne of hijackers. Today Microsoft are releasing new features to safeguard everyone's account from hijackers. The updates will help protect your password and in the unfortunate event that your account gets hijackers, it will provide a more secure recovery path so you'll always be able to get your account back and kick the hijacker out.