The Impact of Digital Disinformation on the Course of the Russian-Ukrainian War

This article examines the impact of digital disinformation on the course of the Russian-Ukrainian war, positioning it as a central tool in Russia’s hybrid warfare strategy. Since 2014, and especially following the full-scale invasion in 2022, disinformation campaigns have intensified, targeting both Ukrainian and international audiences. The analysis explores how fake news, manipulated content, AI-generated deepfakes, and coordinated propaganda efforts have been used to undermine public morale, erode trust in institutions, distort narratives about the war, and weaken international support for Ukraine. The article also discusses the role of cyber incidents that have supported disinformation efforts, such as the December 2023 cyberattack on the major telecom provider Kyivstar, which disrupted critical communications and public services, creating confusion and panic. Other attacks on state registries, the Ministry of Justice, and Ukrainian Railways are considered within the broader context of information operations. Attention is given to Ukraine’s evolving responses, including institutional, civic, and international initiatives aimed at countering false narratives and enhancing digital resilience. Ukraine’s experience in combating Russian disinformation is supported by cooperation with Western governments, fact-checking organizations like VoxCheck, and technology platforms such as YouTube, which play a vital role in moderating harmful content. The study also highlights shifts in international cyber cooperation, especially after the 2025 change in U.S. leadership, which led to a pause in offensive cyber collaboration. In contrast, the European Union expanded its support through cybersecurity initiatives, new satellite intelligence systems, and closer ties with Ukrainian cyber institutions via ENISA. Ultimately, the article argues that digital disinformation has become one of the most defining weapons of the war, requiring not only technical defenses but also societal resilience, strategic communication, and international unity.