Dive deep into the Mach-O executable format used in Apple systems through this informative 34-minute conference talk. Explore the intricacies of this file format, crucial for reverse engineering Apple systems, and gain insights into its structure and functionality. Follow along with a code demonstration that illustrates how to parse Mach-O objects at runtime, revealing the Objective-C class hierarchy of loaded system libraries. Uncover the obscure and archaic aspects of Apple systems, enhancing your understanding of their inner workings and expanding your reverse engineering capabilities for various purposes.