The states (countries) are playing game of power and interest in the international system (IS) to survive and develop. In this game, the states compete to take the best position in the ranking of power. This allows to pursue their national interests more effectively. States with the greatest power (top states) decide on the polar structure and geostrategic nature of IS at every level (global, regional, local). Investigating the structure (static research) and nature (dynamic research) of global balance of power (GBP) after the Cold War three types of power: economic power, military power and geopolitical power were taken into consideration. The results of theoretical and empirical research are relevant to the decision-making process of the political system of states directly or indirectly involved in the international security.
The world faces new challenges and threats to international security environment, among which a key role play different types of cyberthreats. This follows, primarily the global links in a cyberspace in terms of critical infrastructure of the state’s and intergovernment’s objects in the international security environment and the fact that the cyberaggressor’s tools are becoming cheaper, and their skills are more and more advanced. There is an urgent need for the analysis of present and future cyberthreats in the security environment, to understand their impact on everone, States, Nations and organizations and develop effective methods of response in this highly complex reality. The article presents the concept of defining of main types of cyberhreats (i.e. information warfare, cyberterrorism, cybercrime and cyberespionage) on the base of the new theoretical approach of modern security environment model.