- State
- MI
- Covered entity type
- Healthcare Provider
- Individuals affected
- 57,891
- Business associate present
- No
- Type of breach
- Hacking/IT Incident
- Location of breached information
- First seen by InfoSec Signals
- 9/23/2026
- Last seen in OCR export
- 9/23/2026
OCR description
The covered entity (CE), University of Michigan/Michigan Medicine, reported that it experienced a hacking/IT incident that affected the protected health information (PHI) of 57,891 individuals. The PHI involved included names and diagnoses/conditions. The CE notified HHS, affected individuals, and the media. In response to the breach, the CE changed passwords and strengthened password requirements, implemented new technical safeguards, revised its policies and procedures, sanctioned workforce members, and trained or retrained workforce members.
Change history
- 9/23/2026Added to OCR's archive list
Source: U.S. Department of Health and Human Services, Office for Civil Rights, Breach Portal. Records are reproduced as published; entity names and figures are OCR's.