Case Study: TEPCO Power Grid achieves enhanced cyber resilience and real-time anomaly detection with ForeScout SilentDefense

TEPCO Power Grid (TEPCO PG) Deploys SilentDefense for Detecting Anomalies in Its Power Grid

TEPCO Power Grid (TEPCO PG), Japan’s largest electric power company serving roughly 33% of the country and the Tokyo metropolitan area, faced rising cyber threats and heightened risk ahead of the Tokyo 2020 Olympics. The utility needed a powerful, scalable and non‑invasive monitoring solution that could detect zero‑day and targeted attacks without signatures, process proprietary protocols, and offer strong local support.

TEPCO PG selected Forescout SilentDefense, delivered in cooperation with Macnica Networks, and deployed it across its industrial networks. SilentDefense rapidly processed proprietary protocols, integrated with TEPCO PG’s SIEM, and uncovered suspicious external hosts and anomalous process values—strengthening detection and response to internal and external threats, improving infrastructure availability, and providing continuous ROI.

TEPCO Power Grid