Pierce County Library System
Disclosed Jun 20, 20251 year ago340,101 affectedConfirmed
What is known
| People affected | 340,101 (as reported by the organization) |
|---|---|
| Disclosed | Jun 20, 2025 |
| Discovered | Apr 14, 2025 |
| Happened | Apr 15, 2025 |
| Attack | Hacking |
| Data exposed | Not stated |
| Sector | Government · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| Washington Attorney General breach notice: Pierce County Library Systematg.wa.gov · Official notice | Official notice |
| Vermont Attorney General: 2025-12-09 Pierce County Library System Data Breach Notice to Consumersago.vermont.gov · Official notice | Official notice |
| Indiana Attorney General 2025 data breach report: Pierce County Library Systemin.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| Washington AGresidents of WA | Jun 20, 2025 | 336,826 |
| Vermont AGresidents of VT | Dec 9, 2025 | |
| Indiana AGresidents of IN | Dec 9, 2025 | 10 |
History of this record
- 2026-09-25 · records_basis: empty to organization · backfill source
- 2026-09-25 · records: empty to 340101 · backfill source
- 2026-09-25 · source: empty to https://ago.vermont.gov/document/2025-12-09-pierce-county-library-system-data-breach-notice-consumers · 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.