CYBER WARFARE AND INTERNATIONAL CRIMINAL LAW: A COMPREHENSIVE ANALYSIS UNDER JUS AD BELLUM AND JUS IN BELLO

This article explores the legal implications of cyber warfare through the dual lenses of jus ad bellum and jus in bello, emphasizing state responsibility and the applicability of international criminal law. As cyberspace becomes an increasingly contested domain of modern conflict, traditional legal frameworks struggle to address its unique attributes—particularly anonymity, asymmetry, and the civilian-military entanglement of digital infrastructure. The first section establishes the conceptual foundations of cyber warfare, detailing the evolution of conflict modalities and the relevance of classical international law doctrines. The second section examines the legal constraints on the use of force under jus ad bellum, analyzing state sovereignty,self-defense under Article 51 of the UN Charter, and due diligence obligations. It is argued that cyber operations targeting critical infrastructure may constitute breaches of jus cogens norms, thus attracting heightened scrutiny under customary law. The third section addresses jus in bello, applying the principles of proportionality, distinction, and the protection of non-combatants in cyber contexts. It highlights the vulnerabilities of civilian infrastructures—such as hospitals and power grids—and scrutinizes AI-based decision-making systems that challenge transparency and accountability. Particular attention is paid to the intersection between international humanitarian law and human rights protections, especially regarding digital identity and surveillance practices. The final section explores implementation challenges, including attribution difficulties, enforcement gaps, and the limitations of current treaty regimes. Using case studies such as Stuxnet, NotPetya, and the Ukraine power grid attacks, the paper advocates for the development of a binding international cyber warfare treaty, expansion of the Rome Statute, and inclusion of AIrelated offenses. The article concludes that without normative adaptation, both deterrence and justice mechanisms will remain inadequate in the digital theater of war.