In 2023, the most significant healthcare data breach incident in the United States was the HCA Healthcare breach. The Nashville-based company is the largest health system in the United States. During the July 2023 breach, more than *** U.S. hospitals and healthcare sites reported about unauthorized access. The incident impacted million individuals in the United States. Second-ranked PJ&A data breach impacted nearly **** million individuals.
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HIPAA Journal. (January 31, 2024). Largest healthcare data breaches in the United States in 2023, by number of affected individuals (in millions) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 22, 2026, from /statistics/798598/largest-us-healthcare-data-breaches/
HIPAA Journal. "Largest healthcare data breaches in the United States in 2023, by number of affected individuals (in millions)." Chart. January 31, 2024. ÌÇÐÄÆƽâ°æ. Accessed July 22, 2026. /statistics/798598/largest-us-healthcare-data-breaches/
HIPAA Journal. (2024). Largest healthcare data breaches in the United States in 2023, by number of affected individuals (in millions). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 22, 2026. /statistics/798598/largest-us-healthcare-data-breaches/
HIPAA Journal. "Largest Healthcare Data Breaches in The United States in 2023, by Number of Affected Individuals (in Millions)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 31 Jan 2024, /statistics/798598/largest-us-healthcare-data-breaches/
HIPAA Journal, Largest healthcare data breaches in the United States in 2023, by number of affected individuals (in millions) ÌÇÐÄÆƽâ°æ, /statistics/798598/largest-us-healthcare-data-breaches/ (last visited July 22, 2026)
Largest healthcare data breaches in the United States in 2023, by number of affected individuals (in millions) [Graph], HIPAA Journal, January 31, 2024. [Online]. Available: /statistics/798598/largest-us-healthcare-data-breaches/
