HHS OCR report ยท 2021
CNA Financial Corporation data breach
OCR report facts
- Covered entity
- CNA Financial Corporation
- Entity type
- Health Plan
- State
- Illinois
- Individuals affected
- 5,095
- Submission date
- Jul 8, 2021
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), CNA Financial Corporation, reported that it experienced a ransomware attack that affected the protected health information (PHI) of approximately 5,095 individuals. The PHI involved included names, addresses, Social Security numbers, birthdates, diagnoses, lab results, and claims and other treatment information. The CE notified HHS, affected individuals, the media, law enforcement, and provided substitute notice. In response to the breach, the CE strengthened its admi...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the CNA Financial Corporation data breach?
The report to HHS OCR lists 5,095 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Jul 8, 2021.
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 CNA Financial Corporation 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 CNA Financial Corporation.