부산대학교 도서관

This research analyzed Japan's cyber security strategy(サイバーセキュリティ戦略) revised in 2021 based on bilateralism and multilateralism. Because many studies focused only on the interpretation of the Basic Act on cyber security(サイバーセキュリ ティ基本法) and its implication, there was a lack of analysis on cyber security strategy, which occupies an important position in Northeast Asian security. I examined Japan's cyber security by applying an analytical framework related to bilateral and multilateral factors to compensate for this research gap. The result shows that Japan takes both perspectives in its cyber security strategy and raises those levels further. These characteristics depend on Japan's plan of reestablishing the Asian security structure. Japan intends to continue cooperation and development in cyberspace based on the unchanging importance of the U.S.-Japan alliance with the principle of bilateralism. At the same time, Japan expects further to strengthen international cooperation with the basis of multilateralism. In addition, cyber security is likely to be reinforced to keep China in check in connection with Japan's core “Free and Open Indo-Pacific Strategy.” This paper, which combines the international politics approach from bilateral and multilateral elements, is meaningful since it inspects Japan's cyber security by considering interstate dynamics beyond the domestic level.