The given research touches upon the problem of counteracting information influence, which has become urgent since the full-scale invasion of Ukraine by the russian federation. The object of the research is the most conventional methods and means of influence, as well as the plausible consequences for the citizens, society, national security and the country’s image on the international arena. The main aim is to analyze the ways to counteract information influence, as well as to define the essence of information hygiene as one of the efforts against disinformation, manipulative narratives and other forms of information influence. While studying the issue, the research methods of modern gnoseology have been applied. The theory of cognition of conceptual provisions developed by the key experts in the information domain was used as the methodological basis for the research. The following approaches to the research: dialectical, logical, comparative, functional, systemic and others have been applied. Having analysed the scientific resources, we have found out that the problem of information influence is not just-arisen for Ukraine; the state has been resisting information threats during a so called hybrid war with Russia. The main aim of russian information campaigns of that time was to spread fake information about the events in Ukraine, create negative attitude to the government and its policy, as well as to encourage discontent, aggressive or even hostile attitude to each other among Ukrainian citizens. Taking into account the threat, some significant attempts to form the state policy in information security at the legislative level were made. Moreover, a range of social projects aiming to raise the population awareness about potential threats, help them to resist these challenges, and not to get involved into “dirty data”, were introduced. However, with the outbreak of a full-scale war, aims, methods and means of information influence have changed, which correspondently require an appropriate response from both people and the state. Disinformation, destruction of the sources of information on the temporary occupied territories, use of alternative propagandist channels – all these means aim to have a psychological influence on the population, to “sow seeds” of dissatisfaction and despair, as well as to undermine the image of Ukraine and the Armed Forces in the world. In this respect, the authors have analysed and offered some means of counteracting information influence in the context of russian-Ukrainian war, as well as concluded the following: counteracting negative influence is a serious problem which requires a comprehensive approach; following the principles and rules of information hygiene by citizens, as well as governmental and media establishments is the key to resilience and national security. Keywords: information-manipulative technologies, national security, information security, disinformation, information hygiene.