DEF CON is one of the world's largest and most well-known hacker conventions, held annually in Las Vegas, Nevada. Founded in 1993, it brings together computer security professionals, hackers, and enthusiasts to discuss the latest in cybersecurity, technology, and hacking techniques. The event features a variety of talks, workshops, and competitions, allowing participants to learn and share knowledge. The convention also includes Capture the Flag competitions, where teams compete to solve security challenges and vulnerabilities. With thousands of attendees from around the globe, DEF CON serves as a platform for networking and collaboration among those interested in the field of information security.