United Healthcare Breach 2024 Pdf.  — ransomware hackers in february hit unitedhealth group’s change healthcare business, the largest clearinghouse for medical payments in the u.s.  — ascension attack caused by employee downloading malicious file.

 — unitedhealth group ceo andrew witty confirmed for the first time that the company paid a $22 million ransom to hackers who breached its subsidiary change.  — ransomware hackers in february hit unitedhealth group’s change healthcare business, the largest clearinghouse for medical payments in the u.s.