From Queries to Exploits: The Art of GraphQL Hacking is not just another dry cybersecurity manual - it's your backstage pass to the world where APIs spill secrets, schemas whisper vulnerabilities, and hackers (the ethical kind, of course) make magic out of seemingly innocent queries. Hi, I'm Xenrakor Malthisen, and I'm here to teach you how to turn GraphQL from "Oh, that's a cool API thing" into "Wait... I can do what with a single query?!" Whether you're a bug bounty hunter, a pentester, a developer with a mischievous streak, or someone who simply likes poking technology until it yelps, this book will take you from zero to GraphQL hero - with a side order of chaos. We'll start simple: understanding how GraphQL works, why it's replacing REST in so many places, and how to find these juicy endpoints hiding in plain sight. Then we'll crank up the fun - schema enumeration, unauthorized data fetching, injections that make database admins cry, denial-of-service tricks (purely educational, pinky promise), and even chaining vulnerabilities together for cinematic, hacker-movie-worthy results. You'll learn things like: How introspection can feel like hacking with X-ray vision. Why "just one more nested query" is the hacker equivalent of "hold my beer." How developers accidentally leave doors unlocked in resolvers, and how to spot them before the bad guys do. The art of GraphQL injection and what makes it uniquely spicy compared to SQL injection. Turning small misconfigurations into massive data breaches (ethically, of course). And because this isn't a one-way street, we'll also talk defense - from limiting query complexity to locking down fields like Fort Knox - so you can leave this book knowing both how to break and how to fix GraphQL APIs. Expect code samples, war stories, a bit of snark, and a whole lot of "aha!" moments. My goal? To make sure you never look at a GraphQL playground the same way again. You'll start seeing opportunities where others see limitations, and security flaws where others see "just another query." So, whether you're here to sharpen your skills, boost your bug bounty payouts, secure your own APIs, or simply understand why hackers grin when they hear "we use GraphQL" - grab a coffee, buckle up, and let's make some queries misbehave. This isn't just a book about GraphQL hacking. It's a permission slip to think like an attacker, code like a defender, and laugh in the face of complexity - one query at a time.