Which infact I know, in my opinion selling a hacked account for cash wouldn't be worth very much because most people know how to counter a hacker by simply resetting their e-mail password and then their Mojang password. Therefore the person who bought the account from the hacker gets ripped off of money since the original owner has access to everything they attach their e-mail account to. In the setting of a yahoo account you can see the activity of password changes, and items bought, and the location of where the change was made. In conclusion a hacker is honestly not very bright, a buyer gets ripped off, and you get to keep your account.