Cornerstone Staffing Solutions Inc Discloses 2025 Data Breach

Cornerstone Staffing Solutions Inc, a prominent human resources and workforce management provider, reported a data security incident to Indiana regulators on September 11, 2026. This breach, which occurred on November 6, 2025, involved the unauthorized access to a range of sensitive personal and financial data. Individuals whose information was compromised should take proactive steps to safeguard against potential misuse.

State: Indiana
Breach date: November 6, 2025
Reported: September 11, 2026

What may have been exposed

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

Cornerstone Staffing Solutions Inc, an entity specializing in human resources and workforce management, formally reported a data security incident to the Indiana Attorney General on September 11, 2026. This report indicated that an unauthorized compromise of its network environment had occurred, with the breach event itself dating back to November 6, 2025.

Given its operational role, Cornerstone Staffing Solutions Inc functions as a repository for extensive personal and financial data. The company collects records to facilitate candidate placement, process payroll, and manage various human resources functions, making it a target for cyberattacks. Such incidents can often stem from network vulnerabilities or compromised credentials.

The information reported as exposed includes Full Name, Social Security Number, Date of Birth, Wage and Compensation Information, Tax Return Information, Direct Deposit Account Details, Home Address, Phone Number, and Employment History Records. The compromise of these categories of data presents substantial risks to affected individuals, including potential identity theft and financial fraud.

Individuals who receive a notification regarding this incident should monitor their personal and financial accounts closely for any suspicious activity. It is advisable to review credit reports regularly, examine bank and credit card statements for unauthorized transactions, and be cautious of unsolicited communications that request personal information.

This filing with Indiana regulators serves as an official acknowledgment of the breach by Cornerstone Staffing Solutions Inc. The situation remains under monitoring, underscoring the ongoing need for vigilance among those whose data may have been affected.

What to do if you were affected

Based on the categories of information reported in this filing, these steps can help limit the risk of identity theft and fraud.

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.

Source: Indiana Attorney General filing

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