UnitedHealth Confirms Change Healthcare Breach Impacted 190 Million Individuals
UnitedHealth Group confirmed in January 2025 that the February 2024 ransomware attack on its Change Healthcare unit affected approximately 190 million individuals, nearly doubling previous estimates. The compromised data included names, addresses, dates of birth, phone numbers, email addresses, and government identity documents such as Social Security numbers, driver's license numbers, and passport numbers. The company stated that the vast majority of affected individuals had already been notified.
Unitedhealthgroup
- Domain
- unitedhealthgroup.com
- Sector
- Public Administration
- Signals
- 1 linked
Signal context
First seen: Jan 24, 2025
Last updated: Jul 1, 2026
Status: Public signal
Key points
- UnitedHealth Group confirmed the expanded impact of the Change Healthcare breach in January 2025.
- Approximately 190 million individuals were affected, nearly double the initial estimate.
- The original breach occurred in February 2024 due to a ransomware attack by the BlackCat/ALPHV group.
Signal analysis
BetaThis analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.
Sector: Public Administration
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://techcrunch.com/2025/01/24/unitedhealth-confirms-190-million-americans-affected-by-change-healthcare-data-breach/Public source from techcrunch.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.
UnitedHealth estimates 190M people impacted by Change hack - Fierce Healthcarehttps://www.fiercehealthcare.com/payers/unitedhealth-estimates-190m-people-impacted-change-healthcare-cyberattackPublic source from fiercehealthcare.com.
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