United Healthcare Data Breach 2024 Update Today. A third of americans may have had their personal data swept up in a february ransomware attack on a unitedhealth group subsidiary that disrupted. Here's what you need to know about a data breach at change healthcare that had wide impacts this year.

A cyberattack earlier this year against a unitedhealth group subsidiary has proved costly for one of the nation’s largest employers. But personal data was compromised anyway.