Today Microsoft have started banning Xbox 360 consoles of people with
Flashed Xbox
Gamer score
modded avatars
infections on COD4
infections On World at war
Infections on MW2
Anything which breaches the Xbox 360′s code of conduct is eligible for a ban. If your console has been flagged for any of the above or any similar activities, you’ll be banned in all possibility during this ban wave.
Also Microsoft can read messages you’ve sent so don’t go around sending messages saying Hosting MW2 Challenge Lobby for 1200 MSP or PayPal or whatever. And don’t ask for anyone’s account email or password in a email as they ban consoles for doing that aswell.