“On February 21, 2024, Change Healthcare, a subsidiary of UnitedHealth Group was the victim of the most significant cyberattack on the US healthcare system in American history.  Change Healthcare is the predominant source of more than 100 critical functions that keep the healthcare system operating.”

American Hospital Association Letter March 4, 2024

This hack was first reported by the Wall Street Journal on February 23, 2024, in an article entitled “Hospitals and Pharmacies Reeling After Change Healthcare Attack”. 

The Wall Street Journal further reported on March 1, 2024 in an article titled “Medical Providers Fight to Survive After Change Healthcare Attack” that medical practices have gone without revenue for well over a week as a result of the ransom or attack on Change Healthcare.

On March 7, 2024, the Wall Street Journal reported that “UnitedHealth Aims to Restore Change Healthcare Systems Within Two Weeks”.