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The paper presents the impact of the reliable ICT systems on efficient and safe functioning of a state. Moreover risks which faced communication and information systems have been presented. Furthermore authors proposed their own solutions that may improve the level of security of transmitted information. Then they indicated ICT systems that can be used for providing continuous and flawless exchange of information, with particular emphasis on the need of protection of information from unauthorized access, modification or destruction. Also some suggestions have been proposed for the modernization of IT systems, which could improve the secure dataflow and ensure continuous exchange of information between the components responsible for the security of the state.