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 experienced a breach in April 2026 in which an employee account was hacked, exposing customer information. A state investigation found that the company failed to detect the breach for 13 days and became aware of it only after the hacker sent an email. In November, calls were made for an independent audit of the investigation and response, as well as stronger security.
Related reports: 7 · last report →