Regeneron Pharmaceuticals
Disclosed May 22, 20242 years ago1,199,605 affectedConfirmed
What is known
| People affected | 1,199,605 (as reported by the organization) |
|---|---|
| Disclosed | May 22, 2024 |
| Discovered | Apr 10, 2024 |
| Happened | Feb 21, 2024 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| California Attorney General breach notice: Regeneron Pharmaceuticalsoag.ca.gov · Official notice | Official notice |
| Washington Attorney General breach notice: Regeneron Pharmaceuticalsatg.wa.gov · Official notice | Official notice |
| Notice letter filed with the Delaware DOJ: Regeneron Pharmaceuticalsattorneygeneral.delaware.gov · Official notice | Official notice |
| Vermont Attorney General: 2024-05-22 Regeneron Pharmaceuticals Data Breach Notice to Consumersago.vermont.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| California AGresidents of CA | May 22, 2024 | |
| Washington AGresidents of WA | May 22, 2024 | 13,958 |
| Delaware DOJresidents of DE | May 22, 2024 | 6,367 |
| Vermont AGresidents of VT | May 22, 2024 |
History of this record
- 2026-09-25 · source: empty to https://ago.vermont.gov/document/2024-05-22-regeneron-pharmaceuticals-data-breach-notice-consumers · backfill source
- 2026-09-25 · data_types: [] to ["names","health"] · backfill source
- 2026-09-25 · records_basis: empty to organization · backfill source
- 2026-09-25 · records: empty to 1199605 · backfill source
- 2026-09-25 · attack: unknown to hacking · backfill source
- 2026-09-25 · discovered: empty to 2024-04-10 · 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.