Eversource security incident history
Hacking, data breaches and other security incidents involving Eversource, with related coverage.
Incidents: 1 · Most recent
Eversource employee account hack exposes customer information
Impact: Customer information exposed
Eversource suffered a breach in April 2026 when an employee account was hacked, exposing customer information. A state investigation found that the company failed to detect the breach for 13 days and only became aware of it after the hacker sent an email. In November, calls were made for an independent audit of the investigation and response, alongside stronger security.
Related reports: 7 · last report →