Did Cornerstone Staffing Solutions, Inc. have a data breach?

Answer

Yes. Cornerstone Staffing Solutions, Inc. reported a data breach to the California Attorney General on September 11, 2026.

View the official filing

What the filing says

Reported to: California Attorney General
Filing date: September 11, 2026
Breach date: November 6, 2025
People affected: Not stated in the filing

Information involved

Full Name
Social Security Number
Date of Birth
Wage and Compensation Information
Tax Return Information
Direct Deposit Account Details
Mailing Address
Phone Number

In plain terms

Cornerstone Staffing Solutions, a human resources and staffing firm, reported a data breach impacting highly sensitive personal and financial information. The incident, discovered on November 6, 2025, involved data including Full Name, Social Security Number, and Direct Deposit Account Details. Affected individuals should take steps to protect against potential misuse of their exposed data.

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.

Commonly recommended next steps

Freeze your credit
Place a free credit freeze with Equifax, Experian, and TransUnion. A freeze blocks new accounts from being opened in your name and can be lifted anytime.
Guard against tax fraud
File your tax return as early as possible and consider requesting an IRS Identity Protection PIN so no one can file a fraudulent return in your name.
Watch your financial accounts
Review bank and card statements for unfamiliar activity and turn on transaction alerts. Report anything you don't recognize to your bank right away.
Stay alert to targeted scams
Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.
Keep your notification letter
Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.

Look up another company

Other breaches reported in California

DataBreachSearch.com reports what was filed with state regulators. It is not legal advice, is not a law firm, and is not affiliated with any government agency or with Cornerstone Staffing Solutions, Inc..