M&T BANK CORPORATION

M&T Bank reported that an external system breach (hacking) on May 27, 2023, resulted in the compromise of personal information for 43 Maine residents. The breach was discovered on June 1, 2023. The compromised data includes names and Social Security Numbers. Affected individuals were notified on January 26, 2024, and have been offered 24 months of identity and credit monitoring services through Kroll. The consumer notice attached to the filing is from 'Delta Dental of California and affiliates,' which may indicate the breach originated with a third-party vendor.

M&T Bank reported a data breach to the Montana Attorney General. The breach was reported on 2020-07-10. The breach occurred from 12/17/2019 to 4/30/2020. 2 Montana residents were affected.

M&T Bank reported to HHS on 2020-06-29 a Unauthorized Access/Disclosure affecting 5,878 individuals. Breached information located on Email. An employee was victim of a social engineering attack compromising PHI including names, addresses, financial/health insurance info, diagnoses, medications, SSNs, and driver's license numbers. The business associate implemented additional safeguards and retrained staff.