arma 3 battleye global ban #c0bf9c

[nathanmojica59]

im playing arma3 with my frieds and then i went up to eat then i came back and the game says battleye global ban #c0bf9c then i asked my friend what the hell is this and they say im banned permanently then i say wtf? are you serious to be honest i did not use any hack at all then a week past i did not play arma3 becuase every time that i jion a server it says battleye global ban #c0bf9c then one time i open my steam acount it says some one oppend my acount so i cange my password then i try to play arma3 and it worked then i start playing agian im been playing for 5 days and then when i went up agian to eat it says battleye global ban #c0bf9c then i got so pissed like what the hell is wrong can any one help me .?????
and the steam ban that i have on my acount was my friend he try to hack tf2 i think and yeah he got caught so im pissed as hell on him ... and to be honest im not using any hack at all like no hack. so what is this ?