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Jefferson County Health Center d/b/a Jefferson County Health Department
ArchivedSubmitted 01/13/2023
- State
- MO
- Covered entity type
- Healthcare Provider
- Individuals affected
- 115,940
- Business associate present
- No
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- First seen by InfoSec Signals
- 9/23/2026
- Last seen in OCR export
- 9/23/2026
OCR description
The covered entity (CE), Jefferson County Health Center dba Jefferson County Health Department, reported that it experienced a ransomware incident that affected the protected health information (PHI) of 115,940 individuals. The PHI involved included names, Social Security numbers, dates of birth, addresses, drivers’ license numbers, diagnoses, lab results, medications, claims and financial information, and other treatment information. The CE notified HHS, affected individuals, the media, and published substitute notice. In response to the breach, the CE offered free credit monitoring and implemented additional administrative and technical safeguards. Staff were also retrained in its requirements to protect and secure PHI.
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.