Montrose Behavioral Health Hospital
Disclosed Nov 24, 20232 years ago597 affectedConfirmed
The covered entity (CE), Montrose Behavioral Health Hospital, reported that an employee was the subject of an email phishing scheme affecting the protected health information (PHI) of 597 individuals. The PHI involved included names, addresses, dates of birth, Social Security numbers, diagnoses, health insurance information, and other treatment information. The CE notified HHS, the affected individuals, the media, and provided substitute notice. In response to the breach, the CE provided complimentary credit monitoring services and implemented additional administrative and technical safeguards. Staff were retrained on email security precautions.
What is known
| People affected | 597 (as reported to HHS) |
|---|---|
| Disclosed | Nov 24, 2023 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| HHS OCR breach report (archive, resolved): Montrose Behavioral Health Hospital (Healthcare Provider, IL)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| HHS archivetotal | Nov 24, 2023 | 597 |
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.