City of Sheboygan, Wisconsin data breach
Incident readout
- Company
- City of Sheboygan, Wisconsin
- Reported to
- New Hampshire Attorney General
- Filed
- May 23, 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 City of Sheboygan, Wisconsin is a municipal government entity responsible for providing public services and managing administrative records for its residents. As a government body, the City typically collects and stores sensitive personal information including tax records, utility account details, payroll data for municipal employees, and vital records. In 2025, the City of Sheboygan officially reported a data security incident to the New Hampshire Attorney General, indicating that unauthorized access to their systems may have occurred. If you have received a formal data breach notification letter from the City, it means your personal information was likely contained within the affected files. This notice is intended to inform you of the incident and provide guidance on the steps you should take to protect your identity.
See every breach reported in New Hampshire or read what to do after a ransomware attack.
Other breaches reported in New Hampshire
- Janome America, Inc.New Hampshire Attorney General · Filed July 31, 2026Count not stated
- Sullivan Environmental ServicesNew Hampshire Attorney General · Filed July 31, 2026Count not stated
- City of New Britain, Inc.New Hampshire Attorney General · Filed July 30, 2026Count not stated
- New Hampshire Housing Yardi’s RentCafeNew Hampshire Attorney General · Filed July 30, 2026Count not stated
- Pocket FMNew Hampshire Attorney General · Filed July 30, 2026Count not stated
- Werth Wealth Management, LLCNew Hampshire Attorney General · Filed July 29, 2026Count not stated
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.