HHS OCR report ยท 2023
Missouri Department of Social Services data breach
OCR report facts
- Covered entity
- Missouri Department of Social Services
- Entity type
- Health Plan
- State
- Missouri
- Individuals affected
- 739,884
- Submission date
- Aug 7, 2023
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- Yes
- Status
- Archive (closed)
OCR description
The covered entity (CE), Missouri Department of Social Services, reported that a software application used by its business associate (BA) exposed the protected health information (PHI) of 739,884 individuals. The PHI involved included names, dates of birth, claims information, and health insurance information. The CE notified HHS, the affected individuals, the media, and provided substitute notice. In response to the breach, the CE and BA implemented additional administrative, technical, and ...
Text as published on the HHS OCR breach portal.
Other reports by Missouri Department of Social Services
| Covered entity | State | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|---|
| Missouri Department of Social Services | MO | Business Associate | 1,357 | Aug 2, 2013 | Unauthorized Access/Disclosure | Archive (closed) |
Frequently asked questions
How many people were affected by the Missouri Department of Social Services data breach?
The report to HHS OCR lists 739,884 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Aug 7, 2023.
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 Missouri Department of Social Services 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 Missouri Department of Social Services.