日本為了因應網路威脅，於2013年公佈第一版《網路安全戰略》，將網路安全拉高到國家層次，朝向構建「世界領先、強大而充滿活力的網路空間」並實現「網路安全立國」的目標努力。同年5月，美日第一次舉行網路安全對話，聯合成立「美日網路防衛政策工作小組」，進一步推動美日在網路安全領域上的合作。2015年根據《網路安全基本法》規定，將「資訊安全政策會議」及「內閣官房資訊安全中心」升格為「網路安全戰略本部」與「內閣網路安全中心」，組織調整的目的在於增強網路安全主責機關的監督權限，提高政策制定與執行單位間的效率。本文將探討日本因應網路威脅所進行的戰略調整，首先探討日本面臨的網路威脅與案例分析，接著探討中央省廳對於網路安全組織積極調整與日本的網路安全國際合作。In responding to cyber threats, Japan published the first Cybersecurity Strategy in 2013 and worked towards the goal of a ＂Cybersecurity Nation＂ with a ＂world-leading, resilient and vigorous cyberspace＂. In May of 2013, the United States and Japan held their first cybersecurity dialogue and established the U.S.-Japan Cyber Defense Policy Working Group for prompting cybersecurity cooperation. According to Basic Act on Cybersecurity, Information Security Policy Conference and National Information Security Center were upgraded to Cybersecurity Strategic HQs and National Center of Incident Readiness and Strategy for Cybersecurity in 2015. The Japanese organizational adjustments were to strengthen the supervision authority of chief cybersecurity institutions and to raise policy formulation and efficiency between execution units. This study explores Japan's strategic adjustments in response to cyber threats. At first, it discusses the Japanese cyber threats and case studies. Furthermore, the Central Government focusing on organizational adjustments and Japan's international cooperation in cybersecurity are included in this paper
