Learn how people break websites and how you can, too. Real world bug hunting is the premier field guide to finding software bugs. Whether you re a cyber security beginner who wants to make the internet safer or a seasoned developer who wants to write secure code, ethical hacker peter yaworski will show you how it s done. You ll learn about the most common types of bugs like cross site scripting, insecure direct object references, and server side request forgery. Using real life case studies of rewarded vulnerabilities from applications like twitter, facebook, google, and uber, you ll see how hackers manage to invoke race conditions while transferring money, use url parameter to cause users to like unintended tweets, and more. Each chapter introduces a vulnerability type accompanied by a series of actual reported bug bounties. The book s collection of tales from the field will teach you how attackers trick users into giving away their sensitive information and how sites may reveal their vulnerabilities to savvy users. You ll even learn how you could turn your challenging new hobby into a successful career. You ll learn. How the internet works and basic web hacking conceptshow attackers compromise websiteshow to identify functionality commonly associated with vulnerabilitieshow to find bug bounty programs and submit effective vulnerability reportsreal world bug hunting is a fascinating soup to nuts primer on web security vulnerabilities, filled with stories from the trenches and practical wisdom. With your new understanding of site security and weaknesses, you can help make the web a safer place and profit while you re at it.