Threat validation is the backbone of every strong security detection strategy—it ensures your detection pipeline is effective, reliable, and resilient against real-world threats. This comprehensive guide is designed for those new to detection validation, offering clear, actionable frameworks to help you assess, test, and refine your security detections with confidence. Covering the entire detection lifecycle, from development to validation, this book provides real-world examples, hands-on tutorials, and practical projects to solidify your skills. Beyond just technical know-how, this book empowers you to build a career in detection engineering, equipping you with the essential expertise to thrive in today’s cybersecurity landscape. By the end of this book, you'll have the tools and knowledge to fortify your organization’s defenses, enhance detection accuracy, and stay ahead of cyber threats.