Breachesby GlyphCornerstone Staffing Solutions
Disclosed Sep 11, 2026366,122 affectedConfirmed
What is known
| People affected | 366,122 (as reported by the organization) |
|---|---|
| Disclosed | Sep 11, 2026 |
| Discovered | Nov 17, 2025 |
| Happened | Nov 6, 2025 |
| Attack | Hacking |
| Data exposed | Social Security numbersGovernment IDsHealthInsurancePayment cardsFinancialDates of birthAddressesNames |
| Sector | Legal and services · US |
| Status | Confirmed |
Sources
California Attorney General breach notice: Cornerstone Staffing SolutionsWashington Attorney General breach notice: Cornerstone Staffing SolutionsTexas Attorney General data security breach report BR-0005330: Cornerstone Staffing SolutionsOregon DOJ breach notice: Cornerstone Staffing SolutionsIndiana Attorney General 2026 data breach report: Cornerstone Staffing Solutions
Notices filed
History of this record
empty to https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/files/DB-October-Year-to-Date-Report-2026.pdfby dailySource
empty to https://justice.oregon.gov/consumer/DataBreach/by dailySource
[] to ["ssn","government-id","health","insurance","payment-card","financial","dob","addresses","names"]by backfillSource
empty to organizationby backfillSource
empty to 366122by backfillSource
unknown to hackingby backfillSource
empty to 2025-11-17by backfillSource
First recordedby backfillSource
First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.