1
Published signals
currently linked to this company
Company intelligence
Unitedhealthgroup cybersecurity incidents and threat signals
unitedhealthgroup.com
This company page brings together public reporting currently associated with Unitedhealthgroup. It reflects signals published by Shadow Tier and should not be read as a complete incident history.
Company links
0
Last 28 days
recent published signals
0
Last 90 days
recent published signals
1
High or critical
confidence classifications
July 1, 2026
Latest report
most recent published signal
Explore related intelligence
Explore this reporting from another angle
Based on all published signals currently linked to Unitedhealthgroup. Affected countries come from victim data; the company country above remains a separate profile fact. Counts describe this reporting set, not overall incident prevalence.
Attack patterns
Company signals
All published signals involving Unitedhealthgroup
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.
FAQ
Questions about Unitedhealthgroup cybersecurity reporting
What does the Unitedhealthgroup page include?
It combines a reviewed organization profile with all current published Shadow Tier signals explicitly linked to Unitedhealthgroup.
Does every mention of Unitedhealthgroup appear here?
No. A signal must contain a reliable company connection and meet the publication criteria; incidental or ambiguous mentions are excluded.
Why can the incident count change?
The page follows current published reporting. Counts change as new evidence is added, classifications are reviewed, or older signals leave the reporting window.