Understanding your Massachusetts Municipal Wholesale Electric Company data breach notification letter
If a Massachusetts Municipal Wholesale Electric Company letter arrived in your mailbox, here is what it means, why you received it, and the free steps you can take right now.
Why you received this letter
Massachusetts Municipal Wholesale Electric Company is a public power joint action agency that provides wholesale electric power and energy-related services to municipal utilities. As a utility-sector entity, the organization typically maintains sensitive personal information for its employees, contractors, and potentially retail customers, including government-issued identification, financial records, and payroll data. This security incident was officially reported to the New Hampshire Attorney General in 2025 following the discovery of unauthorized access to their digital environment. If you have received a formal data breach notification letter, it indicates that your personal information was stored within the impacted systems. We encourage you to review the provided documentation carefully to understand the scope of the exposure and the identity protection services being offered by the company.
What to do after the letter
Confirm the notice is genuine
A legitimate Massachusetts Municipal Wholesale Electric Company notice references the specific incident reported to the New Hampshire Attorney General and describes which categories of your information were involved. Compare the letter against the public filing before acting on any links or phone numbers it contains.
Keep the letter — it is your proof of connection
The notification letter is the document that ties your personal information to this incident. Keep the original and photograph it. If you later request a case review, this letter is the strongest evidence that you were among the affected individuals.
Protect your accounts and credit
Depending on what was exposed, consider a free credit freeze with all three bureaus, new passwords for reused credentials, and monitoring of financial statements. These steps are free and do not require you to wait for anyone's permission.
Check the record against the public filing
You can verify the Massachusetts Municipal Wholesale Electric Company incident against the filing reported to the New Hampshire Attorney General. This registry summarizes what was filed; it does not provide legal advice.
This page summarizes a data breach reported to the New Hampshire Attorney General for informational purposes. DataBreachInformation.com is a neutral reference registry and does not provide legal advice.