Did MasTecState have a data breach?

In plain terms

MasTecState, an infrastructure engineering firm operating in Massachusetts, reported a data security incident on June 9, 2026. The company is currently investigating the scope of the incident. Affected individuals should take steps to protect their personal information.

MasTecState, a company involved in critical infrastructure engineering and telecommunications in Massachusetts, reported a data security incident to state authorities on June 9, 2026. The official filing indicates that an investigation into the event is currently underway.

The nature of this incident and the specific types of personal information that may have been exposed were not detailed in the public record. This means that while a breach involving your data has been confirmed, the precise categories of information are not publicly known at this time.

Because the investigation is ongoing, MasTecState has not yet released full details regarding how the breach occurred or how many individuals were potentially affected. These facts will likely become clearer as the company's investigation progresses and further reports are filed.

If you receive a direct notification from MasTecState, it is important to review it carefully for any specific instructions or details they might provide. In the meantime, it's wise to remain vigilant for any unusual activity. Review your financial statements and credit reports regularly to detect any unauthorized transactions or accounts opened in your name.

Consider placing a fraud alert or security freeze on your credit files with the major credit bureaus. Be cautious of unexpected emails, calls, or text messages asking for your personal information, as these could be phishing attempts. These general steps can help safeguard your data against potential misuse.

This information is based on public filings made with the Massachusetts Attorney General's office. Updates may become available as MasTecState concludes its investigation.