Explore dynamic binary instrumentation with Frida to enhance testing capabilities for production environments. Learn techniques for creating a granular C++ memory sanity checker, retrofitting testable interfaces onto existing code, and using the Heiseninjektor™. Discover how to inject code on network failures, add testing and REST APIs, read client states, and implement post endpoints for attacking. Gain insights into debugging and other practical use cases of Frida to improve code quality and reliability in real-world scenarios.