Blackcat is the perp behind the Change ransomware attack which United Healthcare may go on for weeks.
https://www.cnbc.com/2024/02/29/blackcat-claims-responsibility-for-cyberattack-at-unitedhealth.html is a good summary.
One of the issues coming up for us are the coupons to bring expensive meds down on copays are also not working. My grandson is a pharmacist for Walgreens and lots of Rx can't be filled because of how the cash price of many drugs exceeds $1,000.