Présentation
Approximately 2,400 email-related people and approximately 71,700 group-contact people are separate, potentially overlapping scopes and are not added. Possible fields include names, organizations, roles, email and phone. No electricity/gas customer-data leak or power-supply impact was confirmed.
Chronologie
- Survenue
- Découverte
- Divulgation
Investigation followed an external report.
Possible exposure publicly disclosed.
Réponse de l’organisation
The company disabled misused credentials, blocked access and reviewed information with specialists and authorities.
Que faire ?
Beware of impersonation using business contact details and verify unusual requests through known contacts.
Sources
- Possibility of information leakage due to unauthorized accessChubu Electric Power Co., Inc. · 2026-11-09