In the article, the authors address an urgent issue in the field of public administration — improving the effectiveness of the implementation of the National Security Strategy of the Russian Federation and the Foundations of state Policy in the field of Strategic Planning in the Russian Federation as new basic strategic planning documents. The purpose of the article is to identify the features of building a system of legal provision of information security and the formation of a unified information space, as well as its component — the digital space, in the interests of strategic management in the Russian Federation. The tasks were implemented using general scientific methods (analysis, synthesis, dialectical methods) and the formal legal method. As part of the study of innovations (novelties) of new strategic planning documents, special attention is paid to the problem of information security and public administration in the context of digital transformation. Based on the results of the study, the authors proposed a number of systemic measures to improve the strategic planning system and its priorities, as well as a vector to achieve strategic national priorities, including reformatting the system of state programs of the Russian Federation, as well as organizational and legal measures to implement the strategic national priority “Information Security”, which was first included among the priorities in the new edition of the National Security Strategy of Russia.