The main problem with the Combat Arms hack protection is the fact it's too easy to crack. Nexon doesn't try to make hard to break. Sure if you caught your account gets banned, who cares when your a hacker?
The least they could is make their main game files folder "locked" or "hidden". It keeps the clueless kids out of the equation.
If you want to get technical, they would issue Serial keys for each account. That one Serial key works for all Nexon game, but only on that account. Also, the first time you start one Nexon game, there's a quick hardware scan, and gives you a GUID. You don't need to keep it, but it's recorded in the player's account. If you get banned, your banned according to GUID, it doesn't matter if you make a new account. What you have to do it change your Motherboard, GPU,CPU or Sound Card. RAM is not detected.
Of course it's not a flawless hack protection, at least people don't get a second chance once they banned.
