The Warlock ransomware group is deploying Bring Your Own Vulnerable Driver techniques to load signed kernel-mode drivers with known vulnerabilities, disabling EDR agents at ring-0 before deploying ransomware payloads, with no specific driver identifiers or affected EDR vendors confirmed in available source data. This capability, previously associated with nation-state operations, is now active in criminal campaigns and represents a structural risk to organizations relying on EDR as a primary control layer. Immediate priorities include auditing kernel driver load events against approved baselines, enabling Windows Defender Application Control Vulnerable Driver Blocklist policy, and verifying that Hypervisor-Protected Code Integrity is enabled across the Windows endpoint fleet.