The scam was for money, but i never would go to one of those sites, so i honestly don't know what would happen once you gave them info. A fool and his money, game acct, are soon parted.
But the other, hacking - i just don't get that either. It had to be purely malicious. I still have never heard of an acct being hacked outside of game, usually an enemy, or disgruntled ex-friend who had your info.