MasTec Reports Data Security Incident to New Hampshire Regulators

MasTec has submitted a data breach notification to the New Hampshire Attorney General's office, dated June 4, 2026. This filing confirms that the company experienced a data security incident that may have involved personal information.

The public record does not specify the precise nature of the breach or the particular types of personal information that may have been exposed. MasTec has stated in its filing that an investigation into the incident is currently ongoing to determine the full scope of what occurred.

Individuals whose data was affected are typically notified directly by MasTec with specific details relevant to their situation. It is important to carefully review any official communications you receive from the company and follow any instructions provided.

As a general precaution, it is advisable to remain vigilant regarding your personal accounts. Regularly check your financial statements and credit reports for any suspicious or unauthorized activity. Many financial institutions and credit bureaus offer free monitoring services that can alert you to potential issues.

Additionally, exercise caution with unsolicited communications. Be wary of any emails, text messages, or phone calls that claim to be from MasTec or other organizations and ask for personal details. These could be phishing attempts designed to exploit data breaches.