This chapter provides an overview of the current situation with critical infrastructure (CI) resilience in the Republic of Serbia, with an emphasis on the possibilities for utilizing the social behaviour in improving CI resilience through the cyber component. It argues that the response to an incident and its impact, as the critical phase in estimating, defining and improving resilience, could play a critical role in enhancing and providing guidance for the CI security in Serbia. To provide a necessary platform, CI resilience should be a main pillar of the new contemporary Law about Critical Infrastructure. On the other hand, the cyber segment is the fastest growing component of CI, making it extremely important for resilience-based CI safeguarding. The pace of technological improvements in the cyber area is not adequately followed by most of its users and their behaviour, making the human factor a constantly growing risk that often renders even the most advanced technological protection measures obsolete. Therefore the strengthening of the social component, followed by appropriate legislation, could provide the required edge in improving the overall resilience of critical infrastructures as the ultimate target.