Brien Center for Mental Health and Substance Abuse Services
Disclosed Jul 18, 20251 year ago5,427 affectedConfirmed
The Brien Center for Mental Health and Substance Abuse Services, the covered entity (CE) reported that an unauthorized third-party gained access to its network and accessed or acquired the protected health information (PHI) of 5,427 individuals. The PHI involved included demographic and clinical diagnostic information. The CE notified HHS and the affected individuals. OCR provided technical assistance regarding the HIPAA Rules. In its mitigation efforts, the CE implemented additional administrative, technical, and security safeguards to better protect its sensitive data.
What is known
| People affected | 5,427 (as reported to HHS) |
|---|---|
| Disclosed | Jul 18, 2025 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| Vermont Attorney General: 2025-07-18 The Brien Center for Mental Health and Substance Abuse Services Data Breach Notice to Consumersago.vermont.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): Brien Center for Mental Health and Substance Abuse Services (Healthcare Provider, MA)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| Vermont AGresidents of VT | Jul 18, 2025 | |
| HHS archivetotal | Jul 18, 2025 | 5,427 |
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 · records_basis: empty to hhs · backfill source
- 2026-09-25 · records: empty to 5427 · backfill source
- 2026-09-25 · summary: empty to The Brien Center for Mental Health and Substance Abuse Services, the covered entity (CE) reported that an unauthorized third-party gained access to its network and accessed or acquired the protected health information (PHI) of 5,427 individ · backfill source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (Vermont AG), confirmed by Vermont AG. Record counts are as reported. Not legal advice.
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