BERT Ransomware Kills ESXi VMs to Cripple Recovery
A newly discovered threat actor known as BERT has introduced a ransomware variant capable of forcibly shutting down VMware ESXi virtual machines, significantly disrupting recovery operations. First identified in April 2025, the BERT ransomware kills ESXi processes before encryption begins, targeting hybrid IT environments across Asia, Europe, and the U.S. Security analysts track the group […]
