Health Care Sector Cyberattacks Broke Records in 2024

  • Apr 11, 2025

    In 2024, the health care sector reported 14 data breaches that involved more than 1 million patient records, representing almost 70% of the U.S. population, according to an AIS Health analysis of data from the HHS Office for Civil Rights (OCR).

    In total, there were 734 health care data breaches that were large enough to report to OCR in 2024, a slight decrease compared to 747 breaches in 2023. However, 2024 was the worst-ever year in terms of the number of patients affected, as a data breach targeting UnitedHealth Group subsidiary Change Healthcare affected an estimated 190 million individuals.

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    © 2024 MMIT
  • Jinghong Chen

    Jinghong has been producing infographics and data stories on employer-sponsored insurance, public health insurance programs and prescription drug coverage for AIS Health’s Health Plan Weekly and Radar on Drug Benefits since 2018. She also manages AIS Health’s annual executive compensation database for top insurers and Blue Cross and Blue Shield affiliates. Before joining AIS Health, she interned at WBEZ, Al Jazeera English and The New York Times Chinese. She graduated from Missouri School of Journalism with a focus on data journalism and international reporting.

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