DayZ bad serial given in setup?

I asked someone they said someone might have hacked and stole my key iv'e been playing all night and six launcher just says processing and commander says I dont own arma 2 op?

If you have been hacked just start the game through steam to get it back, but most likely you will be banned soon.
If you bought a key and it is saying that ask for a refund.

Its fine now I reinstalled the game on steam ran it and dayz is working good!