Japan's New Active Cyber Defense Law: What It Means for Cyber Resilience and AEV
Japan is the latest country to shift from a reactive to a proactive cybersecurity stance, with its landmark Active Cyber Defense Law. The new regulations passed in May 2025 and are set to take full effect by 2027. For cybersecurity leaders, particularly those in critical infrastructure and the enterprise sector, this legislation marks a turning point—and carries major implications about how we test, validate, and evolve our cyber defenses.