Explore the intricacies of attacking industrial wireless mesh networks in this comprehensive conference talk from the Hack In The Box Security Conference. Delve into the industrial revolution's impact on process control loops and gain a thorough understanding of WirelessHART and ISA 100.11a protocols. Examine the WISN topology, protocol stacks, and common denominators in industrial wireless networks. Learn about security measures, encryption keys, and methods to obtain key material. Discover the hardware and software tools needed for sniffing wireless traffic, including the NXP USB-KW41Z and Kinetis Protocol Analyzer Adapter. Master the implementation of Time Slotted Channel Hopping, firmware development, and synchronization techniques. Gain insights into channel selection, hopping schedules, and sniffing with channel hopping. Explore unauthenticated attacks, such as advertisement jamming, and discuss future research directions in industrial wireless network security.