McKenzie Memorial Hospital
Data Breach Class Action Lawsuit

Posted: July 25, 2025 -- Attention, victims of the McKenzie Memorial Hospital data breach.

Abington Cole + Ellery is investigating the data breach recently announced by McKenzie Memorial Hospital.

McKenzie Memorial Hospital Data Breach Summary:

Approximately 54,000 individuals were affected by the McKenzie Memorial Hospital data breach, and breached data may include, but is not necessarily limited to: name, address, phone number, email address, Social Security number, driver's license/state ID number, date of birth, medical diagnosis, date of service, patient account number, medical record number, health insurance claim number, health insurance policy number, employee bank account number and/or treatment cost information.

McKenzie Memorial Hospital identified unusual activity within its digital network in mid‑April 2025. A forensic investigation concluded that an unauthorized individual accessed files on the network during the period from April 14 to April 15, 2025. This activity prompted further examination to determine what types of information may have been compromised. On June 19, 2025, the internal review was completed and McKenzie began notifying affected individuals, including through required reports to state authorities.

As a response, McKenzie Memorial Hospital provided notice letters to impacted individuals, including details about what types of data may have been affected, and offered credit monitoring and identity protection services for one year where appropriate. The organization informed law enforcement and initiated steps to strengthen cybersecurity, reviewing and adjusting security protocols, network monitoring, and policies to reduce future risk.

As a result of the data breach, McKenzie Memorial Hospital is offering 12 months of free credit monitoring and/or identity theft protection services to some affected individuals.

Additional information about the McKenzie Memorial Hospital data breach may be found here: McKenzie Memorial Hospital Data Breach Notification. The McKenzie Memorial Hospital Website may also have additional information about or provide periodic updates regarding the data breach.

About McKenzie Memorial Hospital:

McKenzie Memorial Hospital is a community healthcare provider located in Sandusky, Michigan. Established to serve residents throughout Sanilac County and the surrounding rural areas, the hospital delivers a range of medical services including primary care, emergency medicine, surgical procedures, diagnostic imaging, and rehabilitation therapies. It operates as a nonprofit organization under the oversight of a local governing board that sets policies and manages operations.

The hospital maintains multiple outpatient clinics, providing family medicine, pediatrics, and internal medicine services. It features an emergency department equipped to address urgent medical situations around the clock. Specialized care, such as orthopedics and cardiology, is available through partnerships with external medical providers who regularly visit and offer consultations within the facility. Additionally, McKenzie Memorial Hospital administers community wellness programs and public health education initiatives aimed at preventive care and disease management.

Committed to addressing rural healthcare needs, McKenzie Memorial Hospital participates in collaborative arrangements with larger medical institutions in the region, enabling patient referrals for advanced specialty care. The hospital continually seeks to enhance its facilities and technology, integrating electronic medical records and telemedicine options to improve healthcare access. Through its involvement with regional healthcare networks and associations, McKenzie Memorial Hospital advocates for policies beneficial to rural medical facilities and the communities they serve.

For more information about steps you can take to possibly reduce the chances harm arising from a data breach, please review the following article: What are some steps you can take if you've been the victim of a data breach?

If you believe you are a victim of the McKenzie Memorial Hospital data breach, and if you would like to volunteer to serve as a class representative in a class action lawsuit regarding this data breach, please submit your information via the form on this webpage. This website is not associated with nor authorized by McKenzie Memorial Hospital or any affiliated companies. If you have received any other data breach notifications, you may to review Abington Cole + Ellery's current list of data breach investigations.