Data Breach Notifications

Entity Information

  • Type of Organization: Financial Services
  • Entity Name: M&T Bank
  • Street Address: One M&T Plaza
  • City: Buffalo
  • State, or Country if outside the US: NY
  • Zip Code: 14203

Submitted By

  • Name: Lynn Boryk
  • Title: Benefits & Wellness Manager
  • Firm name (if different than entity):
  • Telephone Number: 7168485029
  • Email Address:
  • Relationship to entity whose information was compromised: Employee

Breach Information

  • Total number of persons affected (including residents): 43
  • Total number of Maine residents affected: 43
  • If the number of Maine residents exceeds 1,000, have the consumer reporting agencies been notified:
  • Date(s) Breach Occured: 05/27/2023
  • Date Breach Discovered: 06/01/2023
  • Description of the Breach:
    • External system breach (hacking)
  • Information Acquired - Name or other personal identifier in combination with: Social Security Number

Notification and Protection Services

  • Type of Notification: Written
  • Date(s) of consumer notification: 01/26/2024
  • Copy of notice to affected Maine residents: Delta Dental of California and affiliates_Adult.pdf
  • Date of any previous (within 12 months) breach notifications:
  • Were identity theft protection services offered: Yes
  • If yes, please provide the duration, the provider of the service and a brief description of the service: 24 months of identity and credit monitoring through Kroll