The Ethical Character of Russia's Offensive Cyber Operations in Ukraine: Testing the Principle of Double Effect

Abstract

Cyber weapons have the potential to achieve strategic military aims in a manner that reduces physical harm, but they can also be used to enhance and expand the lethality of conventional weapons and tactics. When designed to collect private data, cyber weapons can facilitate assassination, kidnapping, torture, and other severe violations of human rights and international law. Russia’s invasion of Ukraine is not the first time that cyber weapons have been deployed for military purposes; however, it is likely the first example of cyber warfare tactics being deployed in a sustained and strategically significant manner in the context of conventional war. To assess the ethical character of Russia’s offensive cyber operations against Ukraine, it is helpful to leverage the principle of double effect, which enables a more precise evaluation of the relationship between the intentions that motivate an act and the effects of the act once it has been taken. Drawing on this principle, this article argues that Russia’s offensive cyber operations in Ukraine represent an unjust use of force and proposes ways of enhancing the ethical character of cyber warfare in future conflicts.