Really quick question - Help please!

Hello guys, well i wanted to ask if there are any hacks that work for cracked versions, since i've heard that most hacks only work for games that have been bought from steam and other ways, but I'm mostly wondering why hacks don't work for cracked versions. Can anyone help please?
Thanks!
-Blitz

all hacks for Operation 2 Black ops 2 are in this section Call of Duty Black Ops 2 Private Server Hacks - MPGH - MultiPlayer Game Hacking & Cheats - Hacks, Cheats, Downloads, Trainers, Games and most of them work just get the right version