Cancer Care Center
Disclosed Jun 8, 20215 years ago20,491 affectedConfirmed
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 response to the breach, the CE strengthened its security safeguards to better protect its ePHI.
What is known
| People affected | 20,491 (as reported by the organization) |
|---|---|
| Disclosed | Jun 8, 2021 |
| Happened | Apr 2, 2021 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| Indiana Attorney General 2021 data breach report: Cancer Care Centerin.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): Cancer Care Center (Healthcare Provider, TN)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| Indiana AGresidents of IN | Jun 8, 2021 | 19 |
| HHS archivetotal | Jun 9, 2021 | 17,809 |
History of this record
- 2026-09-25 · attack: unknown to hacking · backfill source
- 2026-09-25 · data_types: [] to ["names","health"] · backfill source
- 2026-09-25 · summary: empty to 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 · backfill source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (Indiana AG), confirmed by Indiana AG. Record counts are as reported. Not legal advice.