The article is devoted to the formation of an enterprise's information and communication infrastructure in crisis conditions. The structure of information and communication systems is defined, including the architecture of technical, network, cloud and software solutions, as well as integrated digital environments that ensure the uninterrupted flow of information, prompt interaction and the availability of data for management decisions. The risks and vulnerabilities of digital infrastructure caused by external crisis factors, cyberattacks, technical failures, a shortage of human capital with digital competencies, and the growing dependence of enterprises on information and communication platforms and digital service providers are examined. The functions of information and communication resources in preventing and overcoming crisis phenomena are analysed, which manifest themselves in ensuring coordination between departments, maintaining transparency of processes, rapid dissemination of data, increasing the accuracy of management decisions and strengthening the digital resilience of the enterprise.