HHS OCR report ยท 2019
OS, Inc. data breach
OS, Inc., a business associate in Wisconsin, reported a breach affecting 7,880 individuals to HHS OCR on May 2, 2019.
OCR report facts
- Covered entity
- OS, Inc.
- Entity type
- Business Associate
- State
- Wisconsin
- Individuals affected
- 7,880
- Submission date
- May 2, 2019
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Business associate present
- Yes
- Status
- Archive (closed)
OCR description
OS, Inc., a business associate (BA), reported that one of its employees was the victim of an email phishing scheme that affected the electronic protected health information (ePHI) of 46,578 individuals. The ePHI involved included names, birthdates, addresses, Social Security numbers, claims information, diagnoses/conditions, lab results, and medications prescribed. The BA notified HHS, affected individuals, the media, and provided substitute notice. In its mitigation efforts, the BA implem...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the OS, Inc. data breach?
The report to HHS OCR lists 7,880 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on May 2, 2019.
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 OS, Inc. 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 OS, Inc..