HHS OCR report · 2017
Estill County Chiropractic, PLLC data breach
OCR report facts
- Covered entity
- Estill County Chiropractic, PLLC
- Entity type
- Healthcare Provider
- State
- Kentucky
- Individuals affected
- 5,335
- Submission date
- Mar 16, 2017
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), Estill County Chiropractic, discovered that an unauthorized user installed malicious software (ransomware) on its computer system that encrypted 5,335 patients’ files. An investigation revealed that the hacker was able to gain access to the CE’s server using the administrative credentials of its electronic medical records vendor. The types of PHI involved in the incident included patients’ names, addresses, phone numbers, email addresses, dates of birth, social secu...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Estill County Chiropractic, PLLC data breach?
The report to HHS OCR lists 5,335 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Mar 16, 2017.
What type of breach was it?
The OCR portal lists the type of breach as Hacking/IT Incident, with the breached information located in: Network Server.
Is the investigation still open?
No. The report is in the OCR portal archive, which holds reports where OCR has closed its review.
Is a breach notice letter from Estill County Chiropractic, PLLC legitimate?
This site cannot verify letters. Check the sender against the organisation's official website and the HHS OCR breach portal, and avoid calling numbers or clicking links only listed in an unexpected message. See our guide on what to do after a data breach notice.
Source: HHS OCR Breach Portal, OCR export October 2026. Network USA is not affiliated with HHS or Estill County Chiropractic, PLLC.