Conflict fact in the nature of international relations and brought with it security studies are reshaping with conditions of the period day by day. Borders of the interstates or infinities with technological developments have added a new security concern. Cyber attacks and its problems as a conclusion in international security have revealed a new diplomacy and conflict area in the context of international relations. Especially critical infrastructures and these infrastructures’ diplomatic importance in the context of international relations have expedited the studies and meetings in this area and created awareness. Cyber attacks which became a deterrence mechanism for international actors and cyber terrorism-wars which occupy the international agenda in the cyber security area will have wide media coverage of states in the long term. Sincerity as the most important factor of security and applying realpolitik are the other emphasized points in this study. Within this context regional evaluations will be discussed about security perception in this study and will be evaluated with cyber deterrence and critical infrastructures as a new tool in international relations.