HHS OCR report · 2023
Atlas Healthcare Group data breach
OCR report facts
- Covered entity
- Atlas Healthcare Group
- Entity type
- Healthcare Provider
- State
- Connecticut
- Individuals affected
- 10,831
- Submission date
- Oct 13, 2023
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- No
- Status
- Archive (closed)
OCR description
Atlas Healthcare Group reported that it experienced a cyber-attack that affected the protected health information (PHI) of 10,831 individuals. Upon further review, it was determined that the entity is not a part of OCR’s regulated community; the case was therefore closed.
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Atlas Healthcare Group data breach?
The report to HHS OCR lists 10,831 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Oct 13, 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 Atlas Healthcare Group 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 Atlas Healthcare Group.