Since its release in November of 2009 Modern Warfare 2 has been plagued with glitchers and hackers. On top of all these glitchers and hackers we now have scammers. If you have played MW2 in the past few months you have most likely received a message or two advertising the 10th prestige glitch. Most of the time the scammer will ask for Microsoft points or Xbox Live gold cards in exchange he says he will glitch you to 10th prestige.
You give said points or gold card codes to the scammer, and then you never hear from them again. What a surprise! In your attempt to cheat to the top you got ripped off. Not only that but when you post in the Xbox forums to alert them of said scam you are suspended for trying to cheat (and everyone laughs at your stupidity from behind their computer screen).
Moral of the story is, cheaters never prosper. If you receive a 10th prestige glitch message just file a complaint against the gamer and move on. It’s not worth losing money and getting suspended over.