Cardinal Services, Inc. Confirms Data Breach Filed in Maine

Cardinal Services, Inc., Cardinal Employer Organization, and Preferred Employer Solutions, collectively referred to as "Cardinal," filed a data security incident report with the Maine Attorney General on May 20, 2026. The company stated it is currently investigating unauthorized access to its systems.

As a professional employer organization (PEO), Cardinal typically handles extensive personal information for its clients' employees. This can include data related to payroll, taxes, and benefits administration, which is critical for their operations.

If you received a data breach notification letter from Cardinal, it signifies that your personal information was likely stored within their network at the time of the incident and may have been accessed by unauthorized parties. The precise details of the unauthorized access are part of the ongoing investigation.

Individuals affected by this incident should stay alert for any unusual activity. It is advisable to regularly review statements from your financial accounts and monitor your credit reports for any suspicious transactions or inquiries. Consider placing a fraud alert or credit freeze with the major credit reporting agencies as a proactive measure.

This information is derived from the official data breach filing made by Cardinal Services, Inc., Cardinal Employer Organization, and Preferred Employer Solutions with the Maine Attorney General's office.