Data Breach Notifications

Entity Information

  • Type of Organization: Healthcare
  • Entity Name: McKenzie Memorial Hospital
  • Street Address: 120 Delaware Street
  • City: Sandusky
  • State, or Country if outside the US: MI
  • Zip Code: 48471

Submitted By

  • Name: Amanda A. Ruggieri
  • Title: Counsel
  • Firm name (if different than entity): Cipriani & Werner, PC
  • Telephone Number: (610) 213-0105
  • Email Address: ARuggieri@c-wlaw.com
  • Relationship to entity whose information was compromised: Counsel

Breach Information

  • Total number of persons affected (including residents): 54,016
  • Total number of Maine residents affected: 6
  • If the number of Maine residents exceeds 1,000, have the consumer reporting agencies been notified:
  • Date(s) Breach Occured:
  • Date Breach Discovered: June 19, 2025
  • Description of the Breach:
    • External system breach (hacking)
  • Information Acquired - Name or other personal identifier in combination with:

Notification and Protection Services

  • Type of Notification: Written
  • Date(s) of consumer notification: July 24, 2025
  • Copy of notice to affected Maine residents: MMH-Adult_Letter_(12_months).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: 12 months of Credit Monitoring and Identity Theft Protection Services provided by TransUnion for those who wish to enroll.