UnitedHealth-Linked Health Tech Firm Episource Breach Hits 5.4M Patients

Episource breach exposed data of 5.4M patients across the US. Linked to UnitedHealth’s Optum, the health tech firm was hit by a ransomware attack in early 2025...

UnitedHealth almost doubles victim numbers from massive Change Healthcare data breach

UnitedHealth says it now estimates that the data breach on its subsidiary Change Healthcare affected 190 million people, nearly doubling its previous estimate from October. In May, UnitedHealth CEO Andrew Witty estimated that the ransomware attack compromised the data of a third of US individuals...

UnitedHealth Group’s Massive Data Breach Impacts 190 Million Americans

UnitedHealth Group has confirmed that a ransomware attack targeted its subsidiary, Change Healthcare, in February 2024, impacting 190…...

“Substantial proportion” of Americans may have had health and personal data stolen in Change Healthcare breach

UnitedHealth Group has given an update on the February cyberattack on Change Healthcare, one of its subsidiaries. In the update, the company revealed the scale of the breach, saying: “Based on initial targeted data sampling to date, the company has found files containing protected health...

Exit Scam: BlackCat Ransomware Group Vanishes After $22 Million Payout

The threat actors behind the BlackCat ransomware have shut down their darknet website and likely pulled an exit scam after uploading a bogus law enforcement seizure banner. "ALPHV/BlackCat did not get seized. They are exit scamming their affiliates," security researcher Fabian Wosar said. "It is...

Change Healthcare outages reportedly caused by ransomware

On Wednesday February 21, 2024, Change Healthcare—a subsidiary of UnitedHealth Group—experienced serious system outages due to a cyberattack. In a Form 8-K filing the company said it: “identified a suspected nation-state associated cyber security threat actor had gained access to some of the Chan...