MasTecState data breach

Clerk's notes

MasTecState, a company involved in critical infrastructure engineering and project management, formally reported a data security incident to the Massachusetts Attorney General on June 9, 2026. This disclosure indicates a breakdown in the company's digital safeguards, and the incident is currently under investigation to determine its full scope.

While the specific nature of the compromised information has not been publicly detailed, the incident suggests a potential exposure of personal information. Such events can lead to various risks for those affected, including unauthorized access to private records.

Companies entrusted with personal data are legally obligated to maintain robust security measures. The notification from MasTecState suggests that these safeguards may have been insufficient, potentially leaving personal information vulnerable. Receiving a notification means your data was likely involved in this breach.

If you have received a data breach notification letter from MasTecState, it is important to understand the implications. We recommend reviewing financial statements and monitoring for any suspicious activity. You also have the option to explore a free case review to understand your legal rights and potential recourse regarding this incident.

If a notification letter about this breach reached you, see every Massachusetts data breach on file or browse all cases.