Mount St. Mary's Hospital
Disclosed Jul 30, 20215 years ago6,538 affectedConfirmed
The covered entity (CE), Mount St. Mary’s Hospital, reported that its business associate experienced a ransomware attack that affected the electronic protected health information (ePHI) of approximately 6,538 individuals. The ePHI involved included names, dates of birth, and treatment information. The CE notified HHS, affected individuals, and the media.
What is known
| People affected | 6,538 (as reported to HHS) |
|---|---|
| Disclosed | Jul 30, 2021 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| HHS OCR breach report (archive, resolved): Mount St. Mary's Hospital (Healthcare Provider, NY)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| HHS archivetotal | Jul 30, 2021 | 6,538 |
History of this record
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (HHS archive), confirmed by HHS OCR. Record counts are as reported. Not legal advice.