HHS OCR report · 2018
Billings Clinic data breach
OCR report facts
- Covered entity
- Billings Clinic
- Entity type
- Healthcare Provider
- State
- Montana
- Individuals affected
- 949
- Submission date
- Apr 27, 2018
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Business associate present
- No
- Status
- Archive (closed)
OCR description
Billings Clinic, the covered entity (CE), reported that a hacker gained entrance to its computer network via a phishing incident. During February 22-28, 2018, the hacker accessed email containing protected health information (PHI) on Billings’ network, affecting 949 individuals. The CE provided breach notification to HHS, the media, and affected individuals. While the breach was under investigation, CE reported a similar breach to OCR, and OCR has consolidated all issues from this breach into...
Text as published on the HHS OCR breach portal.
Other reports by Billings Clinic
| Covered entity | State | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|---|
| Billings Clinic | MT | Healthcare Provider | 9,417 | Jul 13, 2018 | Hacking/IT Incident | Archive (closed) |
Frequently asked questions
How many people were affected by the Billings Clinic data breach?
The report to HHS OCR lists 949 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Apr 27, 2018.
What type of breach was it?
The OCR portal lists the type of breach as Hacking/IT Incident, with the breached information located in: Email.
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 Billings Clinic 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 Billings Clinic.