Industrial Automatic Control Systems and Controllers Annotation << Back Development of Protected Hybrid Cloud Environment of Organizations IT-infrastructure A.V. Tsaregorodtsev, A.B. Los, A.V. Sorokin Cloud computing is becoming one of the most common IT technologies for deploying applications, thanks to its key features: fl exible solutions, available on request, and a good price / performance ratio. Migrating to the cloud-based architecture allows organizations to reduce the total cost of implementation and support infrastructure, and reduce development time for new business applications. However, the most urgent and important point of migrating data to the cloud is the problem of information security. There are many factors that affect the security of a comprehensive cloud as it multirental architecture brings new and more complex problems and vulnerabilities. This article discusses the key levels of clouds design, some signifi cant advantages and advanced solutions that organization receives during the transition to the cloud. Particular attention is paid to problems of information security and options for solutions in developing of integrated system of information security in the cloud architecture. Different variants of the hybrid architecture of secure cloud that will overcome signifi cant limitations on the level of the database server and at the same time ensure the necessary level of security of the processed data are offered. Applications discussed IT-infrastructures will enable to organization to ensure optimal use of resources and signifi cantly reduce the computation time. Keywords: cloud computing; information security threats; cloud services; hybrid cloud; information security management methods; information security requirements. Contacts: E-mail: atsaregorodtsev@hse.ru, E-mail: alos@hse.ru, E-mail: asorokin@hse.ru Pp. 26-31.