Contemporary global security moment are characterized by great interaction of national and supra-national security structure, the interdependence of national, regional and multilateral forms of higher security integration. However, the role of the state as a single security entity in international relations remains a crucial and indispensable role in the broadest observation security organization. Also, in the contemporary global security paradigm, actualization of asymmetric forms of endangering state security should not be overlooked. The arising question is: How much individual country, especially those in transition process, could comprehensively respond to the current form of asymmetric national security threats to critical infrastructure? Moreover, South East Europe (SEE), or even closer, Western Balkan region, is the part of European continent that we can, by historically overlook, analyzing as the cradle and arena of complex, escalating conflicts. All of them are concluded by the mediation of third part, usually through the negotiation and bargaining of the “big players” on the world’s stage. In this region, the nation’s looking for their own national paradigms, which are often in correlation with the interests of global powers. The beginning of the twenty-first century reflects a significant aspiration of all countries in this part of Europe for development of partnership and allied relations toward of contemporary security risks and threats. Acknowledging the declarations and growing bilateral and multilateral cooperation in the field of security and defense, yet, the questions arises as: Whether states of Southeast Europe identify same security risks and threats? Do they have a unanimous opinion of the potential ways of the vulnerability of critical national infrastructure? Do they share the perception that the security of Southeast Europe are equally nationally as well as common regional issue? The complexity and multifaceted of named questions leads to necessity of a comprehensive approach to the analysis of forms of potential endangering elements of national critical infrastructure which are crucial for security. In addition, particular attention should be paid to unconventional, asymmetric forms of national security jeopardizing and their potential endangering effects on elements of national critical infrastructure. In this paper authors offer the possible overlook of the cross analysis of asymmetrical endangering of national critical infrastructure of Western Balkan countries, as part of SEE. In paper authors use comparative analysis of contemporary approach to the concept of asymmetric security threats, through the prism of particular states perception of endangering forms regarding their national critical infrastructure.