Healthcare data breaches expose some of the most sensitive personal information that exists: medical records, Social Security numbers, insurance details, diagnosis and treatment history, and sometimes genetic or mental health information. These exposures can lead to medical identity theft, insurance fraud committed in a patient’s name, and the unwanted disclosure of private health conditions that can affect employment, relationships, or insurability. Hospitals, clinics, health insurers, and healthcare technology vendors are among the most frequently targeted organizations for ransomware and data theft, in part because medical records are especially valuable on illicit markets and healthcare providers often operate complex, interconnected IT systems. A single breach at a hospital system, health plan, or medical billing vendor can affect hundreds of thousands of patients at once. This page tracks confirmed data breaches at hospitals, clinics, insurers, and other healthcare organizations, including what data was exposed, which companies notified the HHS Office for Civil Rights and other regulators, and what affected patients can do next to protect their medical and financial identity.
Arcadia of Benton LLC notified the Indiana Attorney General of a data breach that occurred in January 2026, affecting 254 individuals nationwide, including at least one Indiana resident.
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The Wisconsin Department of Health Services notified federal regulators that unauthorized access to paper records exposed the protected health information of 8,157 individuals.
Wisconsin Department of Health Services Data Breach Exposes Patient Health Records Read More »
Erlanger Health, a Tennessee healthcare provider, notified federal regulators that unauthorized access to its electronic medical records exposed personal and health information belonging to 4,237 individuals.
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Lucent Health Solutions has agreed to pay up to $1.95 million to settle a class action lawsuit over a 2023 phishing attack that exposed the Social Security numbers and health information of roughly 37,000 people.
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TriWest Healthcare Alliance notified California regulators of a data breach that may have exposed sensitive personal and health information belonging to affected individuals.
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Alta Orthopaedics Medical Group, Inc. notified California regulators of a data breach that may have exposed patients’ medical and personal information. Here’s what patients need to know.
Alta Orthopaedics Medical Group Data Breach Exposes Patient Medical Records Read More »
BrightSpring Health Services notified Delaware regulators and affected individuals after unauthorized access exposed personal and medical information, prompting concerns over identity theft and medical fraud.
Marlboro-Chesterfield Pathology has settled a class action lawsuit after a 2025 ransomware attack exposed the Social Security numbers and health information of nearly 236,000 people.
Navvis & Company, LLC notified the Delaware Attorney General of a data breach that may have exposed sensitive personal and health information belonging to affected individuals.
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Ascension Health filed a supplemental data breach notification with the Delaware Attorney General, confirming that patient medical, financial, and personal information was compromised in a cyberattack.
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