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Did M&T Bank have a data breach?

Answer

Yes. M&T Bank reported a data breach to the Massachusetts Attorney General on April 17, 2026.

What the filing says

Reported to
Massachusetts Attorney General
Filing date
April 17, 2026
Breach date
Not stated in the filing
People affected
Not stated in the filing

In plain terms

M&T Bank reported a data security incident to the Massachusetts Attorney General's office on April 17, 2026. An investigation is underway into how personal information may have been exposed. Individuals potentially affected should remain vigilant about their personal accounts and data.

M&T Bank submitted a data breach notification to the Massachusetts Attorney General's office on April 17, 2026. This filing indicates that the bank experienced a security incident which may have led to the unauthorized access or exposure of personal information. The specific details regarding the breach date and the number of individuals affected were not specified in the public record at the time of filing.

The incident is currently under investigation to determine its full scope and impact. While the exact nature of the information involved has not been publicly disclosed, financial institutions like M&T Bank routinely handle a wide range of sensitive customer data. Such incidents underscore the ongoing challenges organizations face in protecting digital assets.

Individuals who may be affected by this incident should carefully review any communications they receive from M&T Bank. It is important to understand what happened and how it might impact your personal information. Be cautious of unsolicited emails or messages asking for personal details, as these could be phishing attempts.

To help protect yourself, consider placing a fraud alert or security freeze on your credit reports with the three major credit bureaus. Regularly monitor your financial accounts and credit statements for any suspicious activity. Report any unauthorized transactions or unfamiliar inquiries immediately to your bank and relevant authorities.

Other filings by M&T Bank

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 Massachusetts

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 M&T Bank.