A cyberattack on Change Healthcare, a key player in the U.S. healthcare system, has caused significant disruption, halting billions in payments and costing providers an estimated $100 million daily. The attack, which began on February 21, has stretched into over three weeks, impacting hospitals and physician practices nationwide. The White House and lawmakers have increased pressure on UnitedHealth, urging the company to provide more emergency funding to affected healthcare providers. The FBI reported a 74% increase in ransomware losses in the U.S. in 2023, reaching $59.6 million. Change Healthcare processes $2T per year, highlighting the scale of the impact. The healthcare sector, already grappling with cybersecurity threats, faces heightened challenges as the attack on Change Healthcare reveals vulnerabilities and emphasizes the importance of cybersecurity readiness. UnitedHealth's shares have lost about $27 B in market cap since the cyberattack.