International Business Machines
Disclosed Sep 22, 20233 years ago630,755 affectedConfirmed
What is known
| People affected | 630,755 (as reported to HHS) |
|---|---|
| Disclosed | Sep 22, 2023 |
| Attack | Insider |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| California Attorney General breach notice: International Business Machinesoag.ca.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): International Business Machines (Business Associate, NY)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| California AGresidents of CA | Sep 22, 2023 | |
| HHS archivetotal | Sep 29, 2023 | 630,755 |
History of this record
- 2026-09-25 · sector: other to health · backfill source
- 2026-09-25 · attack: unknown to insider · 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 630755 · backfill source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.