The research relevance is determined by the ever-increasing threat of cyberattacks and the need to protect defence systems from these threats through the introduction of integrated computer technologies. The study aims to develop strategies for ensuring digital security in the defence sector, addressing the impact of information technology. The study analyses the impact of integrated computer technologies on information security in the military sphere, develops cybersecurity strategies and analyses examples of their application in the defence sector. The study determined that integrated computer technologies are substantial in improving cybersecurity in the defence sector. The analysis showed that they can effectively detect, analyse and respond to cyber threats, ensuring reliable protection of critical information resources. In addition, the digital security strategies developed addressed the specifics of the defence sector, helping to improve protection against cyberattacks and ensuring immediate action in the event of a threat. The resulting strategies for improving the digital security of the defence sector consider the specifics of the industry, contributing to increased resilience against cyber threats and ensuring prompt action in the event of potential attacks. The most significant examples of the introduction of these technologies, namely data mining, big data, distributed blockchain technology, analytical methods of cyber-analysis and cyber-physical systems, have demonstrated their effectiveness in real-world conditions, contributing to the security and resilience of defence systems. The results show the importance of information technology in improving cybersecurity in the defence sector. This confirms the need for systematic implementation of such technologies to ensure effective protection against modern cyber threats
