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Latest / California / September 2026

Cornerstone Staffing Solutions, Inc.

Cornerstone Staffing Solutions, Inc. notified California AG on Sep 11, 2026 of a data breach, which occurred on Nov 21, 2025.

All 6 filings by Cornerstone Staffing Solutions, Inc., state by state · Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization
Cornerstone Staffing Solutions, Inc.
Source
California AG · source record
Date reported
Sep 11, 2026
Date(s) of breach
Thursday, November 6, 2025Friday, November 21, 2025
Residents affected
Not published by this source
Data exposed
Not stated in the source listing
Notice letter
Sample notice (PDF)
Days to notice
294 days from the end of the breach window (Nov 21, 2025, no discovery date in the letter) to the California record (Sep 11, 2026). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
First seen by BreachTally
2026-10-30 15:26 UTC

Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.

First seen by BreachTally at 15:26 UTC on Oct 30, 2026. New filings reach paid subscribers within 30 minutes of the agency posting, with the count, the data exposed and the letter. Start a 14-day free trial. We email you two days before the first charge and you cancel in one click.
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Other filings by Cornerstone Staffing Solutions, Inc.

OrganizationSourceStateReportedResidents affectedData exposed
Cornerstone Staffing Solutions, Inc. Texas AG TX Sep 15, 2026 4,425 Social Security numberDriver's license / state IDPassport numberFinancial / bank account+5
Cornerstone Staffing Solutions, Inc. Massachusetts OCABR MA Sep 12, 2026 243 Social Security numberMedical / health informationFinancial / bank accountDriver's license / state ID
Cornerstone Staffing Solutions, Inc. Oregon DOJ OR Sep 11, 2026 366,122 Not stated
Cornerstone Staffing Solutions, Inc Iowa AG IA Sep 11, 2026 Not published Name
Cornerstone Staffing Solutions, Inc. Washington AG WA Sep 11, 2026 681 Social Security numberDriver's license / state IDPassport numberFinancial / bank account+6

Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.