Cornerstone Staffing Solutions Reports Data Breach

Cornerstone Staffing Solutions, Inc., a firm specializing in human resources and workforce management, reported a data security incident to California regulators. The company filed details of a breach on September 11, 2026, stemming from an event that occurred on November 6, 2025. The filing indicates an ongoing investigation with a monitoring status.

The data types exposed in this incident are reported to include individuals' Full Name, Social Security Number, Date of Birth, Wage and Compensation Information, Tax Return Information, Direct Deposit Account Details, Mailing Address, and Phone Number. Cornerstone Staffing Solutions routinely handles such sensitive information due to the nature of its business in recruitment and payroll management.

The compromise of these data categories poses significant risks. With exposed Social Security Numbers and Dates of Birth, individuals face an increased risk of identity theft, potential fraudulent account openings, or unauthorized tax filings. Direct Deposit Account Details and Wage and Compensation Information could also be exploited for financial fraud, potentially leading to unauthorized withdrawals or disruptions.

Individuals who receive a breach notification from Cornerstone Staffing Solutions should remain vigilant. It is recommended to monitor financial accounts and credit reports for suspicious activity. Consider placing a fraud alert or security freeze on credit files and carefully reviewing statements from banks and other financial institutions.

This report is based on information provided in the public filing by Cornerstone Staffing Solutions, Inc. with regulatory authorities. The company's investigation into the incident is currently listed as monitoring.