Increasing the Resilience of Critical Infrastructures with Defense Zone System

Protecting critical infrastructure is extremely important, ensuring the continuity and stability of societal and economic functions. These infrastructures face increasing internal and external threats that can disrupt operations or cause significant damage. As a result, strengthening the resilience and security of infrastructures has become a strategic priority, not only at the national level but also at the level of the European Union. The European Union emphasized the necessity of enhancing the resilience of critical infrastructures in its 2022/2557/EU directive. [1] The directive provides a framework for member states to effectively manage potential risks and ensure that infrastructures can quickly recover and maintain their functions in case of disturbances or threats. According to our study, establishing defense zones is one way to increase protection effectiveness. On a scale from 0 to 4, these zones create layered security measures that ensure a depth protection (protection-in-depth) approach. The formation and management of zones is a strategic process considering the severity of potential impacts and worst-case scenarios.