7 Lessons Learned From Designing a DEF CON CTF

This article distills lessons from organizing the DEF CON Cloud Village CTF led by Jenko Hwong, emphasizing realistic storytelling tied to operational attack/defense scenarios, applying software development rigor to design and testing, ensuring strong operational management across shared cloud environments, calibrating difficulty and adopting dynamic scoring to balance team advantages, building more engaging blue-team detection/response challenges, incorporating fresh research-driven exploits, and developing reusable CTF building blocks to improve quality and scalability.