Japan's 国家サイバー統括室(NCO) issues data-leak guidance with AI checks

The document arrives after a string of unauthorized-access incidents in which customer personal data leaked. The NCO frames those cases around shortfalls in basic protections — software vulnerabilities and configuration mistakes — rather than exotic attacks, which is why much of the guidance reads as a checklist of fundamentals: knowing what software and versions you run, shutting down unnecessary exposed functions, and testing before release.

The eight measures are split into three areas: operations and management, design and development, and the supply chain. Under operations, the NCO singles out servers and network equipment for priority action, and it flags exposed admin screens, development and test environments, and misconfigured cloud storage sharing as common openings. AI appears here as a tool for finding attack paths and triaging alerts, with a stated requirement that people confirm the reasoning and make the final judgment.

The supply-chain section addresses a scenario where a company's own defenses are sound but a contractor's lapse causes the damage. It recommends multi-factor authentication, source-IP limits, connections only during work, and security requirements written into contracts — while noting that cost sharing and implementation methods need to be discussed. On OSS and external libraries, it stresses a rapid response setup for zero-day or critical vulnerabilities, including SBOM submission as a contract term. The NCO closes by saying the measures target current attack methods and should also anticipate more sophisticated misuse of AI.