Some of you have a misconception. I'm not talking af entering cheat code or programs. But exploits
For instance if you notice int the gam MMORPG or RPG a that you can duplicate items by usind a bug in the game (not changin files of the game) now thats an exploit that you can take advantage of and you can't call it cheating because you follow the "bad" rules of the game as written by the programmers.
(remembers IIS from Microsoft) Professor found a bug that allowed the surfer to enter the server just by entering it in a browser. He mailed it to microsoft with code to exploit it included. He mailed 10 time and waited 6 months. No word from microsoft. Then he placed it on the internet en it was one of th most used hack-trick.