Explore offensive security research techniques for hardening Microsoft's Hyper-V virtualization stack in this 51-minute Black Hat conference talk. Dive into the importance of virtualization technology in modern computing security strategies and understand why Hyper-V is held to such high security standards, as evidenced by its $250,000 public bug bounty program. Learn about the structure of Hyper-V, including its VMSwitch component, and examine specific vulnerabilities such as write-out-of-bounds issues and kernel thread stack exploits. Discover methods for bypassing Kernel Stack Layout Randomization (KSLR) and how information leaks can be leveraged. Gain insights into effective mitigation strategies, with a focus on two key approaches presented by security researcher Jordan Rabet. Enhance your understanding of virtualization security and offensive research methodologies to better protect critical infrastructure.