Chaos engineering is a systematic way of testing systems to their limits in a controlled manner to ensure they can withstand extreme conditions. It involves running targeted experiments to identify patterns in seemingly random and unexpected events, with the goal of proactively strengthening systems against unexpected events and building confidence that the system will work as intended no matter what. By injecting chaos into systems, teams can find system issues before they break publicly and improve their resilience. Chaos engineering is necessary for security because it proves that controls can withstand the unpredictable and ensures that real-life security programs do not exist in a vacuum. It's essential to focus on targeted experiments that uncover manual engineering errors, avoid trying to "boil the ocean" with too many issues at once, and expect failure as a critical tool in chaos engineering. As businesses continue to transform to the cloud, chaos engineering will become more critical than ever to prepare organizations for cloud transformation and maintain their new capabilities moving forward.