Explore the vulnerabilities of Cisco EnergyWise, a proprietary Energy Management Protocol, in this Black Hat conference talk. Delve into the architecture and protocol specification of EnergyWise, and learn how to reverse-engineer this closed-source system. Discover potential security risks, including the ability to hijack EnergyWise domains and perform DoS attacks. Gain insights into sniffing techniques, cracking secrets, and methods for blocking EnergyWise. Examine the broader implications of Energy Management Protocols in various environments, from office networks to data centers. Understand the potential for large-scale blackouts due to misconfigurations or exploitable vulnerabilities. Access a toolkit demonstrating the presented attacks and consider future developments in this critical area of network security.