Tennis Warehouse
Disclosed Dec 16, 20214 years ago1,813,224 affectedConfirmed
What is known
| People affected | 1,813,224 (as reported by the organization) |
|---|---|
| Disclosed | Dec 16, 2021 |
| Discovered | Oct 15, 2021 |
| Happened | Oct 1, 2021 |
| Attack | Lost or stolen device |
| Data exposed | Names, Credentials and tokens |
| Sector | Other · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| California Attorney General breach notice: Tennis Warehouseoag.ca.gov · Official notice | Official notice |
| Washington Attorney General breach notice: Tennis Warehouseatg.wa.gov · Official notice | Official notice |
| Notice letter filed with the Delaware DOJ: Tennis Warehouseattorneygeneral.delaware.gov · Official notice | Official notice |
| Oregon DOJ breach notice: Tennis Warehousejustice.oregon.gov · Official notice | Official notice |
| Indiana Attorney General 2021 data breach report: Tennis Warehousein.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| Delaware DOJresidents of DE | Dec 16, 2021 | 1,820 |
| Oregon DOJresidents of OR | Dec 16, 2021 | 1,813,224 |
| Indiana AGresidents of IN | Dec 16, 2021 | 7,220 |
| Washington AGresidents of WA | Dec 17, 2021 | 18,228 |
| California AGresidents of CA | Dec 18, 2021 | |
| California AGresidents of CA | Apr 12, 2022 |
History of this record
- 2026-09-25 · records: 606977 to 1813224 · backfill source
- 2026-09-25 · data_types: [] to ["names","credentials"] · backfill source
- 2026-09-25 · records_basis: empty to organization · backfill source
- 2026-09-25 · records: empty to 606977 · backfill source
- 2026-09-25 · disclosed: 2021-12-17 to 2021-12-16 · backfill source
- 2026-09-25 · attack: unknown to lost-device · backfill source
- 2026-09-25 · disclosed: 2021-12-18 to 2021-12-17 · backfill source
- 2026-09-25 · discovered: empty to 2021-10-15 · backfill source
- 2026-09-25 · disclosed: 2022-04-12 to 2021-12-18 · 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.