MODEL OF ENSURING THE STABILITY OF CRITICAL INFORMATION SYSTEMS UNDER THE INFLUENCE OF INTERNAL AND EXTERNAL DESTABILIZING FACTORS

Abstract

The modern critical infrastructure (CI) of the state consists of information, energy, transport and other strategically important facilities that ensure the continuous functioning of society and the economy. A special role in its protection is played by critical information systems (CIS), which provide processing, storage and transmission of data necessary for the management of key sectors/subsectors of the infrastructure. In the context of increasing cyber threats, military challenges and destabilizing factors (DF), the determining factor in the security and stability of the functioning of the state's CI is ensuring the stability of the CIS. The article analyzes existing approaches to ensuring stability according to key criteria: reliability, resistance to physical threats, cybersecurity, prompt recovery, flexibility and adaptability, coordination of risk management, financial and resource security, susceptibility to DF. The strengths and weaknesses of national approaches have been identified, and the need to take into account the criterion of susceptibility to DF has been established, since its impact remains insufficiently studied, especially in the context of modern threats. A model for ensuring the stability of CIS has been developed, which allows critical systems to function in a normal mode, adapt to constantly changing conditions, withstand and quickly recover from the impact of internal and external DF. Subsequent research will be aimed at improving the completeness of the set of security functions, which will allow to increase the level of cybersecurity and stability (resilience) of CIS in conditions of martial law and post-war recovery.