HHS OCR report · 2018
ATI Holdings, LLC data breach
OCR report facts
- Covered entity
- ATI Holdings, LLC
- Entity type
- Business Associate
- State
- Illinois
- Individuals affected
- 2,645
- Submission date
- Apr 13, 2018
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Business associate present
- Yes
- Status
- Archive (closed)
OCR description
The covered entity (CE), ATI Holdings, reported that multiple employees were the victims of an email phishing attack affecting the protected health information (PHI) of 2,645 individuals. The PHI involved included names, dates of birth, Social Security numbers, addresses, drivers’ license numbers, diagnoses/conditions, medications prescribed, and other financial and treatment information. The CE notified HHS, affected individuals, the media, and provided substitute notice on its website. In r...
Text as published on the HHS OCR breach portal.
Other reports by ATI Holdings, LLC
| Covered entity | State | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|---|
| ATI Holdings, LLC | IL | Healthcare Provider | 45,800 | Mar 12, 2018 | Hacking/IT Incident | Archive (closed) |
Frequently asked questions
How many people were affected by the ATI Holdings, LLC data breach?
The report to HHS OCR lists 2,645 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Apr 13, 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 ATI Holdings, LLC 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 ATI Holdings, LLC.