UnitedHealth Group Announces Change Healthcare Breach Impacted 190 Million Individuals
UnitedHealth Group announced on January 27, 2025, that the data breach at its subsidiary Change Healthcare, stemming from a February 2024 ransomware attack, impacted approximately 190 million individuals. This updated estimate nearly doubles the previously reported figure, making it the largest healthcare data breach in U.S. history.
Signal context
First seen: Jan 27, 2025
Last updated: Jul 1, 2026
Status: Public signal
Key points
- Original ransomware attack occurred in February 2024.
- Updated impact estimate of 190 million individuals announced on January 27, 2025.
- Exposed data included health insurance information, medical records, billing details, and personal information (names, addresses, Social Security numbers, government IDs).
Signal analysis
BetaIt helps compare this signal with other published signals without treating the labels as final determinations.
Likely country: Location not provided
Watch ransomware, endpoint compromise and business interruption exposure.
- Source type: outside the affected organization
Impact area: Confidentiality, Availability
Likely asset: User or customer data
- 1 signal in the same sector
- 100 signals with the same likely impact area
- 1 signal linked to this organization/domain
External sources
UnitedHealth Confirms 190 Million Americans Affected by Change Healthcare Data Breachhttps://dailysecurityreview.com/unitedhealth-confirms-190-million-americans-affected-by-change-healthcare-data-breach/Public source from dailysecurityreview.com.
Change Healthcare Data Breach Impact Grows to 190 Million Individuals - SecurityWeekhttps://www.securityweek.com/change-healthcare-data-breach-impact-grows-to-190-million-individuals/Public source from securityweek.com.
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