Japan Plans Major Cyber Hunt to Detect Hidden Attacks on Critical Infrastructure

Japan is expanding proactive threat-hunting capabilities for critical infrastructure in fiscal 2027, pairing the National Cybersecurity Office's development and sharing of detection methods with possible Defense Ministry personnel support for affected operators; the initiative responds to recent breaches and disruptions — including a GSS compromise potentially exposing ~246,000 records, logistics and service outages at private companies, and concerns about attackers moving laterally before deploying ransomware.