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Capture-the-Flag Field Guide
This online book from the Trail of Bits team instructors readers on how to win Capture the Flag (CTF). CTF competitions “distill major disciplines of professional computer security work into short, objectively measurable exercises” and the competitions focus on “vulnerability discovery, exploit creation, toolkit creation, and operational tradecraft.” The book covers walkthroughs of past CTF challenges, guidance for readers to develop their own toolkits, and case studies of attacker behavior – both in the real world and in past competitions.