HHS OCR report · 2026
Continental Casualty Company (CNA) data breach
OCR report facts
- Covered entity
- Continental Casualty Company (CNA)
- Entity type
- Health Plan
- State
- Illinois
- Individuals affected
- 6,086
- Submission date
- Mar 23, 2026
- 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), Continental Casualty Company, reported that it was notified by its business associate (BA) that a subcontractor of the BA’s subcontractor experienced a breach of its network that affected the protected health information (PHI) of 6,086 individuals. The PHI involved included clinical, demographic, and financial information. The CE notified HHS, the affected individuals, and the media. In response to the breach, the CE and BA implemented additional administrative, tec...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Continental Casualty Company (CNA) data breach?
The report to HHS OCR lists 6,086 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Mar 23, 2026.
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 Continental Casualty Company (CNA) 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 Continental Casualty Company (CNA).