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Rock County Human Services Department

ArchivedSubmitted 08/12/2022
State
WI
Covered entity type
Healthcare Provider
Individuals affected
25,610
Business associate present
No
Type of breach
Hacking/IT Incident
Location of breached information
Email
First seen by InfoSec Signals
9/23/2026
Last seen in OCR export
9/23/2026

OCR description

Rock County Human Services Department, the covered entity (CE), reported that multiple employees were victims of an email phishing scheme that compromised the protected health information (PHI) of 25,610 individuals. The PHI involved included names, addresses, dates of birth, drivers’ license and Social Security numbers, claims and financial information, diagnoses, lab results, medications, and other treatment information. Rock County Human Services Department notified HHS, the affected individuals, the media, and provided substitute notice. In its mitigation efforts, the CE implemented additional administrative and technical safeguards. Staff were retrained on email security.

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.