I'm not sure at this point whether to laugh or cry.

http://blogs.battlefield.com/2013/09...-the-bf4-beta/

Towards the bottom:

Keeping the Battlefield fair

At DICE, we are always striving to keep the Battlefield fair. We are happy to let you know that we have increased our protection against cheaters to not only use PunkBuster, but we will also work side by side with Gameblocks, who will provide us with their anti-cheat engine FairFight. We believe that the FairFight engine will be a great complement to the anti-cheat measures already in play. During the Beta we will try out both FairFight and PunkBuster to make the experience as good as possible for our players. You will notice information about the two anti-cheat measures on the server browser pages on Battlelog, and you will also potentially see messaging in the chat box in-game when a cheater is caught. We will get back to you later with more detail on how we are improving our anti-cheat measures in Battlefield 4.
Obviously Punkbuster is a joke in itself, but how serious is FairFight? I'm not really a WarZ player, so I don't know what its capabilities are.