Change Healthcare Data Breach 2025. After change healthcare, a technology company owned by unitedhealth group, reported a giant ransomware attack, you may have received a letter. Change healthcare began sending customer notifications regarding the data breach, beginning on july 29, 2025.
On july 19, 2025, change healthcare filed a breach report with the hhs office for civil rights (ocr) concerning a ransomware attack that resulted in a breach of protected health information. Unitedhealth group has raised its estimates to nearly $2.9 billion for the total costs this fiscal year of the cyberattack on its.