Classify hardware DMA threats, host-driver memory acquisition and network or USB transport in game-security research. Use for PCIe/FPGA, IOMMU/VT-d, Thunderbolt/USB4, LeechCore, WinPmem, bridge-cable claims, device identity and acquisition forensics; select repository resources for architecture, remapping concepts and existing images. Identify the memory initiator and required access, then map observable artifacts, mitigation scope, benign uses and unresolved architecture claims.