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VILLAGE OF MUNDELEIN data breach

Incident readout

Company
VILLAGE OF MUNDELEIN
Reported to
Illinois Attorney General
Filed
October 17, 2025
People affected
Not stated in the filing
Incident type in filing
Not stated
Our review
Investigation Open

Was this a ransomware attack?

The filing does not say ransomware was involved. We do not label an incident ransomware unless the company’s report says so. Whatever the cause, the steps to protect yourself and the legal question are the same.

What we know

The Village of Mundelein is a municipal government entity serving the residents of Mundelein, Illinois, and is responsible for managing essential public services and local administrative records. As a government body, the Village typically collects and maintains sensitive personal information from residents, employees, and contractors, including identity verification documents, payroll data, and utility account information. In 2025, the Village of Mundelein officially reported a data security incident to the Illinois Attorney General. If you have received a formal data breach notification letter from the Village, it indicates that your personal information was potentially compromised during this event. This notification serves to inform you of the nature of the incident and the specific steps the Village is taking to address the situation and protect your identity.

See every breach reported in Illinois or read what to do after a ransomware attack.

Other breaches reported in Illinois

Attorney advertising. This page reflects a public regulator filing; it does not mean a lawsuit has been filed or that the company did anything unlawful. Submitting a review request does not create an attorney-client relationship.