AI Security
Cyberattacks on the Power Grid: Japan's New Rule for Solar and Battery Equipment, and How to Prepare
On 16 October 2026, Nikkei reported that the targets of cyberattacks on Japan's power grid exceed 100 million points. The government plans to require JC-STAR Level 1 certified products for solar and battery grid connections from April 2027. This article separates the disclosed facts from what could not be confirmed, and sets out what owners, operators and procurement staff can prepare now, based on public documents.
2026-10-21Ryuta Hamamoto