- State
- WI
- Covered entity type
- Health Plan
- Individuals affected
- 12,162
- 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 25, 2026
OCR description
The covered entity (CE), Alta Resources Corporation, reported that it experienced a ransomware attack that affected the protected health information (PHI) of approximately 12,162 individuals. The PHI involved names, addresses, dates of birth, drivers’ license and social security numbers, and diagnoses and conditions. The CE notified HHS, the affected individuals, the media, and provided substitute notice. In its mitigation efforts, the CE provided complimentary credit monitoring services and implemented additional technical 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.