Toward resilience management in critical information infrastructure

In the information age, critical infrastructure have become largely computerized and interconnected throughout the world, and their scope has grown more and more. Indeed, a failure in one critical infrastructure could lead to serious consequences on national security, economic well-being, public health, safety, or any combination thereof, producing then cascading effects because of their synergies. Consequently, the reliability, performance, continuous operation, safety, and protection of these so-called critical infrastructures is essential toward society and its economy. Nevertheless, the protection of critical infrastructure is a classical method that opens the question on the situation of these infrastructures in case of failure. In response to this, several studies necessitate a further strengthening in terms of resilience of these infrastructures. The items explored in this paper discuss different aspects related to resilience that gives the foundation of resilience strategy. We present in one hand the state of the art regarding resilience view in Critical Infrastructures and gives a systematic approach that can be applied on it, introducing then the applicability of resilience policy on these infrastructures.