Explore the architecture and vulnerabilities of Hyper-V virtualization technology in this 47-minute Black Hat conference talk. Delve into the complexities of virtualization stacks as a foundation for platform and cloud security. Examine the potential risks associated with guest-to-host exploits. Learn about Hyper-V components, guest partitions, least privilege principles, and the componentized attack surface. Investigate the Hypervisor's kernel and user modes, VM Bus, attack surfaces, VM Bus pipes, and IO entry points. Analyze VM Switch, VPCI, and VMBus communication. Gain insights into the intercepted IO process and reflect on the implications for virtualization security.