Mountain View Hospital
Disclosed Jul 3, 20233 years ago441,903 affectedConfirmed
Mountain View Hospital, the covered entity (CE), reported that it experienced a ransomware attack that compromised the protected health information (PHI) of 441,903 individuals. The PHI involved included names, addresses, dates of birth, drivers’ license and Social Security numbers, health insurance Information, lab results, medications, diagnoses, and additional treatment information. The CE notified HHS, affected individuals, the media, and posted substitute notice on its website. In its mitigation efforts, the CE retrained its workforce members and implemented additional administrative and technical safeguards.
What is known
| People affected | 441,903 (as reported to HHS) |
|---|---|
| Disclosed | Jul 3, 2023 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| HHS OCR breach report (archive, resolved): Mountain View Hospital (Healthcare Provider, ID)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| HHS archivetotal | Jul 3, 2023 | 441,903 |
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.