The more interconnected and complex our systems of critical infrastructure become, the more they are vulnerable to states and non-states actions. Cyber capabilities, both offensive and defensive, have become of critical importance to all players in the international system. As a target, these capabilities could be used against social, economic and military stability without employing brute force. Even though the world has not witnessed a direct cyber-war, multiple computer network attacks have taken place affecting locations all around the globe. These events give rise to an important question: how catastrophic could a larger cyberattack be in the age of technological prevalence. Using public domain information, this research will therefore consider Societal Collapse as the most transcendental outcome of a major cyber-attack; considering the higher dependence by financial and energetic sector on the complex cyber-systems. An attack could generate a massive effect of disruption, uncertainty, panic, instability among individuals and organizations inducing global instability