RetnOHacK is an Albanian defacer, pentester, security researcher, and Anti-Serbian from Kosovo. Defacements can be seen at http://zone-h.com/archive/notifier=Procoderz , http://zone-hc.com/defacer/attacker/retnohack/1, and http://zone-hc.com/defacer/attacker/procoderz/1