In a world where digital and physical systems are inseparable, the complexity of urban infrastructure presents a unique challenge to cybersecurity. Purple teaming, a dynamic blend of offensive and defensive strategies, offers a transformative approach to strengthening resilience. Through simulated chaos, organizations can test and refine their defenses, building adaptive strategies that ensure the integrity of critical systems. This article explores how integrated testing, collaboration, and innovation are essential to fortifying defenses against hybrid cyberattacks.