The Hidden Risk in Virtualization: Why Hypervisors are a Ransomware Magnet

Huntress Labs reports a significant rise in hypervisor-targeting ransomware in 2025—driven largely by the Akira group—where attackers compromise ESXi/Hyper-V management planes or exploit known vulnerabilities (e.g., CVE-2024-37085) to encrypt many guest VMs at scale; the article details observed attacker techniques and provides prescriptive controls (segregated management networks, MFA, least privilege, signed code execution, patching, immutable backups, and enhanced logging/alerting) to reduce risk and improve recovery readiness.