Seyfarth Shaw
Disclosed Sep 18, 20267 days ago56,755 affectedConfirmed
Seyfarth Shaw documents with client SSNs emailed to unauthorized recipient
Law firm Seyfarth Shaw said on August 18, 2026 it identified unauthorized acquisition of a small number of documents with names and SSNs that were sent by email to an unauthorized recipient. It found no access to its network.
What is known
| People affected | 56,755 (as reported by the organization) |
|---|---|
| Disclosed | Sep 18, 2026 |
| Discovered | Aug 18, 2026 |
| Happened | Aug 18, 2026 |
| Attack | Not stated |
| Data exposed | Names, Social Security numbers |
| Sector | Legal and services · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| California Attorney General breach notice: Seyfarth Shawoag.ca.gov · Official notice | Official notice |
| California AG breach report: Seyfarth Shawoag.ca.gov · Regulator | Regulator |
| Seyfarth Shaw notice of security incidentoag.ca.gov · Regulator | Regulator |
| Texas Attorney General data security breach report BR-0005356: Seyfarth Shawoag.my.site.com · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| California AGresidents of CA | Sep 18 | |
| Researchtotal | Sep 18 | |
| Texas AGresidents of TX | Sep 21 | 305 |
History of this record
- 2026-09-25 · records_basis: empty to organization · backfill source
- 2026-09-25 · records: empty to 56755 · backfill source
- 2026-09-25 · sector: other to legal · seed source
- 2026-09-25 · data_types: [] to ["names","ssn"] · seed source
- 2026-09-25 · discovered: empty to 2026-08-18 · seed source
- 2026-09-25 · summary: empty to Law firm Seyfarth Shaw said on August 18, 2026 it identified unauthorized acquisition of a small number of documents with names and SSNs that were sent by email to an unauthorized recipient. It found no access to its network. · seed source
- 2026-09-25 · title: empty to Seyfarth Shaw documents with client SSNs emailed to unauthorized recipient · seed 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.