CornerStone Staffing Solutions, Inc.

Cornerstone Staffing Solutions, Inc. based in Pleasanton, California, a business – retail or merchant entity reported a data breach to the Texas Attorney General. The breach was discovered on 2026-08-07 and reported on 2026-09-15. 4,425 Texas residents were affected. 366,122 individuals affected in total. Types of information involved: Name of individual;Address;Social Security Number Information;Driver’s License number;Government-issued ID number (e.g. passport, state ID card);Financial Information (e.g. account number, credit or debit card number);Medical Information;Health Insurance Information;Other;Date of Birth. Consumers were notified via U.S. Mail.

Cornerstone Staffing Services, Inc. reported a data breach to the Vermont Attorney General. The breach was reported to the AGO on 2026-09-12. The reporting organization type is Other Commercial. 7 Vermont residents were affected. Categories of data breached: Social Security Numbers, Financial Account Codes, Credit and Debit Account Info.

Cornerstone Staffing Solutions, Inc., a business sector entity reported a unauthorized access incident to the Washington Attorney General. The organization became aware of the incident on 2025-11-17 and filed notice on 2026-09-11. 681 Washington residents were affected. 298 days elapsed between awareness and notification. 11 days to identify the breach. 4 days to contain the breach.

Cornerstone Staffing Solutions, Inc. detected anomalous activity on November 17, 2025, indicating unauthorized access to its network between November 6 and 21, 2025. The investigation found indications that some data may have been removed, though specific files were not determined. Affected data types include names and potentially other personal information. The company engaged a third-party cybersecurity firm, implemented additional security measures, and is offering credit monitoring services.

Cornerstone Staffing Solutions, Inc. detected anomalous activity on November 17, 2025, indicating unauthorized access to its network between November 6 and 21, 2025. An investigation found indications that some data may have been removed, though specific files were not determined. Affected data types include name and potentially other personal information. The company engaged a third-party cybersecurity firm, contained the threat, and is offering credit monitoring services.