Did MasTec, Inc. have a data breach?

Answer

Yes. MasTec, Inc. reported a data breach to the TX Attorney General on June 9, 2026.

What the filing says

Reported to: TX Attorney General
Filing date: June 9, 2026
Breach date: August 9, 2025
People affected: Not stated in the filing

In plain terms

MasTec, Inc., based in Texas, officially reported a data breach impacting personal information, according to a public filing. The incident, which occurred in August 2025, is currently under investigation.

MasTec, Inc., based in Texas, has officially reported a data breach. The incident occurred on August 9, 2025, and the company filed its report on June 9, 2026.

According to the public filing, the specific nature of the breach and the exact types of personal information involved were not detailed. The report indicates that the information involved was personal in nature.

MasTec, Inc. also noted that the investigation into this security incident is currently ongoing. As a result, further specific details about the breach may not yet be public.

Individuals who may be affected are advised to stay alert for any unusual activity. General precautions include regularly checking financial and other account statements for discrepancies. Consider strengthening passwords on online services and enabling multi-factor authentication for added security.

This summary is based on the official breach filing from MasTec, Inc. If you received a direct notification letter, it should provide more specific information pertaining to your situation, which you can cross-reference with this public record.

Other filings by MasTec, Inc.

Companies often file the same breach in several states. Each filing is listed separately.

Commonly recommended next steps

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.

Look up another company

Other breaches reported in TX

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 MasTec, Inc..