Abstract: The article is predominantly of a theoretical and review nature and the aim is to bring out notions related to hybrid warfare, the role of the media and the Internet in a complicated and at the same time dynamically developing inter¬national environment through a critical reading of scientific publications, strate¬gies and normative documents. The scientific field implies an interdisciplinary approach. The methods of analysis and synthesis and desk research are used. No empirical research results are presented, but examples are given as illustrations of events and processes related to hybrid warfare. An attempt is made to answer the research questions: What are the characteristics of hybrid warfare in the 21st century? How does the media function in the face of confrontation, cyber threats and cyber security dangers? The article outlines the characteristics of hybrid warfare and describes the specifics of media used for information dissemination and manipulation. The role of institutions is outlined and some of their functions to neutralize the effects of disinformation in hybrid warfare are indicated. Keywords: hybrid warfare, internet, media, social networks, communication.