The paper offers proposals for the development of theoretical and practical foundations for ensuring the circulation of information in the information space of the state under the influence of a potential enemy and in the event of open aggression in order to ensure the information security of the state. The results of the analysis of external and internal factors influencing the information that circulates during the functioning of critically important objects of the state in the modern conditions of confrontation in the information sphere are given. The main requirements for the information protection systems of critical state objects are defined, the sources of threats to information are given, and the main channels of information leakage are defined. The results of the work are proposed to be used in the development of the concept and program for the creation of a system of information protection of critical state objects.