Proliance Surgeons
Disclosed Nov 20, 20232 years ago437,392 affectedConfirmed
The covered entity (CE), Proliance Surgeons, reported that it experienced a ransomware incident that affected the protected health information (PHI) of 437,392 individuals. The PHI involved included names, dates of birth, addresses, drivers’ license and Social Security numbers, financial information, and diagnoses. The CE notified HHS, the affected individuals, the media, and posted substitute notice on its website. In response to the breach, the CE provided complimentary credit monitoring services and implemented additional administrative and technical safeguards to better protect PHI.
What is known
| People affected | 437,392 (as reported to HHS) |
|---|---|
| Disclosed | Nov 20, 2023 |
| Discovered | Feb 11, 2023 |
| Happened | Feb 11, 2023 |
| Attack | Ransomware |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| Washington Attorney General breach notice: Proliance Surgeonsatg.wa.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): Proliance Surgeons (Healthcare Provider, WA)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| Washington AGresidents of WA | Nov 20, 2023 | 329,291 |
| HHS archivetotal | Nov 20, 2023 | 437,392 |
History of this record
- 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 437392 · backfill source
- 2026-09-25 · summary: empty to The covered entity (CE), Proliance Surgeons, reported that it experienced a ransomware incident that affected the protected health information (PHI) of 437,392 individuals. The PHI involved included names, dates of birth, addresses, drivers · backfill source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (Washington AG), confirmed by Washington AG. Record counts are as reported. Not legal advice.