Cardinal Services Reports Data Security Incident to Maine Attorney General

Cardinal Services, Inc., Cardinal Employer Organization, and Preferred Employer Solutions, collectively known as 'Cardinal,' officially filed a data security incident report with the Maine Attorney General's office on May 20, 2026. As a Professional Employer Organization (PEO), Cardinal typically manages sensitive data for its clients, including employee records and benefits information.

The public filing indicates that unauthorized parties may have accessed their systems, potentially compromising personal information. While the specific categories of data involved are not detailed in the available public record, the report confirms a breach impacting their network.

If you received a direct notification letter from Cardinal, it signifies that your personal information was likely stored within their network at the time of this incident. The purpose of this notice is to inform you of the event and guide you on necessary protective measures.

Individuals who have received a notification are advised to remain vigilant. Regularly review all financial statements and credit reports for any suspicious or unauthorized activity. It is also recommended to consider placing a fraud alert or security freeze on your credit files to prevent potential misuse of your information.

Additionally, update passwords for online accounts, especially those that might share credentials or are associated with services managed by Cardinal. This proactive approach helps to mitigate risks associated with the reported data security incident.