HHS OCR report ยท 2021
Cancer Care Center data breach
OCR report facts
- Covered entity
- Cancer Care Center
- Entity type
- Healthcare Provider
- State
- Tennessee
- Individuals affected
- 17,809
- Submission date
- Jun 9, 2021
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Electronic Medical Record
- Business associate present
- Yes
- Status
- Archive (closed)
OCR description
The covered entity (CE), Cancer Care Centers, reported that its business associate (BA) experienced a ransomware attack that affected the electronic protected health information (ePHI) of 17,809 individuals. The ePHI involved included names, Social Security numbers, dates of birth, addresses, diagnoses, prescription information, and other treatment information. The CE notified HHS, affected individuals, and the media. The CE also provided complimentary credit monitoring services. In respo...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Cancer Care Center data breach?
The report to HHS OCR lists 17,809 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Jun 9, 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: Electronic Medical Record.
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 Cancer Care Center 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 Cancer Care Center.