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Investigation OpenMassachusetts AG filing · May 28, 2026

Mercury Systems, Inc. Reports Data Security Incident in Massachusetts

Mercury Systems, Inc., a defense contractor, reported a data security incident to the Massachusetts Attorney General on May 28, 2026. The company is currently investigating the scope of the event. This incident may have exposed personal information, posing potential risks for those affected.

State
Massachusetts
Reported
May 28, 2026

Mercury Systems, Inc., a company involved in aerospace and defense technology, filed a data breach notification with the Massachusetts Attorney General's office on May 28, 2026. This filing confirms a data security incident affecting the company's systems.

The specific nature of the breach, including how it occurred and the exact date it began, has not been publicly detailed. Mercury Systems has stated that an investigation into the incident is ongoing to determine the full extent of the compromise.

While the specific categories of information involved were not specified in the official filing, the incident potentially impacts personal information maintained by Mercury Systems. Individuals who receive direct notification from the company should carefully review that communication for any further details provided.

If you receive a notification from Mercury Systems about this incident, it is important to remain vigilant. Regularly monitor your financial accounts and credit reports for any signs of suspicious activity. You can obtain free credit reports annually from the three major credit bureaus.

Consider placing a fraud alert or security freeze on your credit files to prevent unauthorized access. Be cautious of unsolicited communications, especially those asking for personal details, as these could be phishing attempts related to the incident.

What to do if you were affected

These general steps can help limit the risk of identity theft and fraud after any data breach.

  • 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.

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