Every security team is drowning. Alert queues that never empty, threat intel that outpaces human reading speed, and a talent shortage that shows no sign of closing — this is the daily reality for analysts, IT administrators, and CISOs alike. Microsoft Security Copilot promises a way out: an AI partner that triages alerts in seconds, drafts incident summaries in plain English, and hunts for threats across an entire enterprise before coffee gets cold. But promise and practice are different things, and most teams adopting Copilot are flying without a map. This book is that map. Written for beginner and intermediate security and IT professionals, Security Copilot moves past the marketing slides and into the architecture, economics, and day-to-day mechanics of the platform. You'll learn how Security Copilot's models, grounding, and orchestration layers actually work together; how to license, provision, and roll it out without blowing your budget on Security Compute Units; and how to write prompts that get precise, actionable answers instead of generic AI filler. Real case studies — a 3 a.m. alert escalation, a business email compromise investigation, a phased agent rollout at a mid-sized financial firm — show the platform in action, not just in theory. It doesn't stop at the chat box. Dedicated chapters tackle the autonomous agents reshaping SOC workflows, the governance and Responsible AI commitments every deployment must satisfy, and the skills security professionals will need as AI becomes a permanent teammate rather than a novelty. Each chapter closes with hands-on exercises, and the book ends with a glossary, a quick-start checklist, a ready-to-use prompt library, and a 30-day adoption sprint you can run starting tomorrow. Whether you're piloting Security Copilot for the first time or trying to mature a deployment that's already underway, this book gives you the grounded, no-jargon guidance to put AI to work defending your organization — without losing sight of who's still in charge.
