I was playing in a server that was just me and three friends when out of nowhere a hacker teleported right in front of me with his fist raised he then chased me, I then killed him for hacking, and thirty some odd seconds later he was back speed hacking around telling me to apologize I then proceeded to tell him in game I had his profile and also recorded him hacking. He then logged out of the server and continued to play on other servers no doubt hacking. I have his main account with DayZ as well as 4 others of his at the time(before he changed them due to the reports and my video and initial forum post) were all named similar and the ones that had been banned already actually said "Global banned RIP" in the name. (Sorry about the profanity in both the video and in his "clever" profile links, he changed them after he realized I actually reported and posted the video)