- State
- WI
- Covered entity type
- Healthcare Provider
- Individuals affected
- 10,853
- Business associate present
- No
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- First seen by InfoSec Signals
- Sep 23, 2026
- Last seen in OCR export
- Oct 26, 2026
OCR description
The covered entity (CE), County of Rock, WI, reported that it experienced a ransomware attack affecting the protected health information (PHI) of 10,853 individuals. The PHI involved included names, addresses, dates of birth, drivers’ license and social security numbers, diagnoses, conditions, lab results, medications, and claims and financial information. The CE notified HHS, the affected individuals, and the media. In response to the breach, the CE provided complimentary credit monitoring services and implemented additional administrative, technical, and security safeguards.
Change history
- Sep 23, 2026Added to OCR's archive list
Source: HHS OCR Breach Portal, U.S. Department of Health and Human Services, Office for Civil Rights about this source
Records are reproduced as published; entity names and figures are OCR's.