Apply evolutionary biology to AI-driven cybersecurity attack and defense Offensive AI now discovers vulnerabilities, generates adversarial examples that defeat defensive models, and adapts in real time. Adversarial Symbiosis in Cybersecurity: Co-evolving AI for Attack, Defense and Governance reconceptualizes this landscape as a living ecosystem where defensive AI, offensive AI, and human operators continuously co-evolve through adaptive learning loops, with each side’s adaptations shaping the other’s trajectory. Drawing on predator-prey dynamics and biological co-evolution, the book delivers quantitative models, simulation methods, and practical design principles for building AI systems that adapt dynamically rather than merely detect threats. Later chapters address offensive AI capabilities including automated exploit discovery and adversarial example generation, while governance models balance innovation with ethics, safety, and regulatory compliance. The book also covers: Human-centered approaches integrating cognitive science, decision support design, and trust calibration into AI-augmented security operations workflows Real-world case studies demonstrating co-evolutionary patterns in advanced persistent threat campaigns, phishing ecosystems, and IoT botnets Practical architectures for designing adaptive defense systems that respond to evolving offensive techniques through continuous learning loops Multi-agent reinforcement learning and meta-learning frameworks applied to emergent behaviors within adversarial cybersecurity environments Governance and policy frameworks addressing ethical deployment of offensive AI capabilities alongside regulatory compliance requirements Written for security operations center analysts and managers, threat intelligence specialists, and incident response teams, this book also serves security architects, engineers, and CISOs seeking a rigorous co-evolutionary framework for understanding and operationalizing AI-driven cybersecurity strategy.