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Did Green Mountain Power have a data breach?

Answer

Yes. Green Mountain Power reported a data breach to the Vermont Attorney General on September 4, 2026.

View the official filing

What the filing says

Reported to
Vermont Attorney General
Filing date
September 4, 2026
Breach date
Not stated in the filing
People affected
Not stated in the filing

Information involved

  • Full Name
  • Social Security Number
  • Date of Birth
  • Mailing Address
  • Financial Account Number
  • Routing Number
  • Energy Consumption and Usage History
  • Email Address

In plain terms

Vermont utility Green Mountain Power filed a data breach report on September 4, 2026, indicating a security incident involving customer information. The filing confirms the exposure of sensitive personal and financial details. Individuals affected by this incident should review their accounts and take protective measures.

Green Mountain Power, an essential utility provider in Vermont, submitted an official data breach report on September 4, 2026. This filing confirms that the company experienced a security incident affecting customer data, though the specific breach date and number of affected individuals remain unspecified in public records. This report is a public record of the incident.

The exposed data categories identified in the filing include Full Name, Social Security Number, Date of Birth, Mailing Address, Financial Account Number, Routing Number, Energy Consumption and Usage History, and Email Address. The presence of these data types suggests a broad compromise of personal and financial customer information.

Such information, if misused, can lead to identity theft, financial fraud, and various scams. For instance, compromised Social Security Numbers and Dates of Birth can facilitate the creation of fraudulent accounts, while exposed financial details could enable unauthorized transactions. Even energy consumption history might be used for profiling or targeted social engineering.

If you receive a data breach notification from Green Mountain Power, it is advisable to regularly monitor your financial accounts and credit reports for any unusual activity. Consider placing a fraud alert or credit freeze with the major credit bureaus to help prevent unauthorized access to your credit. Additionally, be vigilant against unsolicited communications, especially those requesting personal information.

As of the filing date, the investigation into the full scope and nature of this security incident is ongoing, with Green Mountain Power reportedly monitoring the situation. Details about this breach are derived from the official report filed with regulators.

Commonly recommended next steps

  • Freeze your credit

    Place a free credit freeze with Equifax, Experian, and TransUnion. A freeze blocks new accounts from being opened in your name and can be lifted anytime.

  • Watch your financial accounts

    Review bank and card statements for unfamiliar activity and turn on transaction alerts. Report anything you don't recognize to your bank right away.

  • Secure your online accounts

    Change the password on any account that reused an exposed password and turn on two-factor authentication wherever it's offered.

  • Stay alert to targeted scams

    Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.

  • Keep your notification letter

    Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.

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DataBreachSearch.com reports what was filed with state regulators. It is not legal advice, is not a law firm, and is not affiliated with any government agency or with Green Mountain Power.