Strauss Borrelli PLLC, a leading data breach law firm, is investigating Madison Healthcare Services (“MHS”) regarding its recent cybersecurity incident. The MHS cybersecurity incident may have involved sensitive personal information and protected health information belonging to an undetermined number of individuals.
ABOUT MADISON HEALTHCARE SERVICES:
MHS is a healthcare company based in Minnesota. Today, MHS provides a range of healthcare services to patients, including family medicine, primary care, behavioral health services, senior services, and specialty providers for dermatology, surgery, and more.2 Headquartered in Madison, Minnesota, MHS employs over 200 individuals.3
WHAT HAPPENED?
Recently, MHS announced that it had experienced a cybersecurity event in which an unauthorized third party gained access to certain files within its network. As a result, MHS launched an investigation to determine the nature of the incident. Through its ongoing investigation, MHS has confirmed that certain information in its systems was accessed or acquired by an unauthorized third party between July and August of 2025. As a result, MHS began a review of the data to determine what information had been impacted as well as identify the specific individuals affected. On December 1, 2025, MHS posted notice of the cybersecurity incident on its website. A link to the website cybersecurity incident notice is below.
If you believe you have been affected by the Madison Healthcare Services cybersecurity incident:
We would like to speak with you about your rights and potential legal remedies in response to this data breach. Please fill out the form, below, or contact us at 872.263.1100 or sam@straussborrelli.com.









