M&T Bank Reports Data Breach Incident to Massachusetts AG

M&T Bank filed a data breach notification with Massachusetts regulators on April 17, 2026. This publicly recorded incident indicates an exposure of personal information. The exact details of how the breach occurred remain under active investigation.

According to the official filing, the specific categories of personal information involved in this incident were not detailed. Individuals who received a notification from M&T Bank should review it carefully for any further specific details provided by the bank.

The precise date when this security event began or was discovered is also unspecified in the public record. M&T Bank has stated that its investigation into the incident is ongoing to determine the full scope and impact of the data exposure.

For potentially affected individuals, general security practices are recommended. This includes remaining vigilant for any unusual activity across online accounts and promptly reviewing financial statements and credit reports for discrepancies.

It is also advisable to consider placing a fraud alert with credit bureaus, which can make it harder for identity thieves to open new accounts in your name. For the most accurate and up-to-date information regarding this incident, individuals should refer to any direct communications they receive from M&T Bank.