FBI, CISA, DC3, HHS and international partners updated the Akira ransomware advisory in November 2025. More than $244 million in ransoms collected since March 2023, with healthcare listed alongside manufacturing, education and IT.
The tradecraft is a checklist of known-and-ignored gaps: exploitation of SonicWall CVE-2024-40766 and Cisco CVE-2020-3259, VPN logins without MFA, abuse of legitimate remote tools like AnyDesk and LogMeIn, double extortion, and encryption of VMware ESXi and Nutanix AHV virtual machines. Sit with that: two of the primary entry points are a VPN missing MFA and a five-year-old Cisco CVE. The sophisticated part of ransomware is rarely the way in.
For device makers whose products live on hospital networks, the ESXi and Nutanix detail matters. When the hypervisor gets encrypted, every virtualized clinical system goes down together, including yours.