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Marshfield Clinic Health System Data Breach (2025) | Event | Medical Knowledge Base

Knowledge Base/Event/Marshfield Clinic Health System Data Breach (2025)

Marshfield Clinic Health System Data Breach (2025)

Marshfield Clinic Health System data breach in WI affecting 35,952 individuals. Reported 2025-11-07.

Also Known As

Marshfield Clinic Health System

📄Event

Last updated: Feb 14, 2026

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