Welcome to DEF CON 33, the ultimate gathering for hackers, builders, breakers, and thinkers. From roots in a FidoNet farewell party to 30,000+ attendees, DEF CON remains the world’s most iconic hacker conference.

Why it’s legendary:

• Built by and for the community — no sponsors, just pure signal

• Hands-on contests, CTF, lockpicking, AI security, tool demos, and parties

• Only at DEF CON: the Black Badge, free lifetime access for the elite 🕶️

What makes it real:

• Cash-only entry, no fluff, no VIP tiers

• A hacker's playground: open networks, custom badges, warez trading, social engineering contests 🔗

• Community-led events, rogue tracks, spontaneous mischief — you make the con

Inside the chaos:

• World-class talks on cybersecurity, privacy, hardware hacking, and ethics

• Villages for everything from car hacking to quantum computing

• Music, mischief, and memorable mayhem until the sun comes up 🎧

You don’t attend DEF CON. You become DEF CON.

Come see what the world's wildest tech tribe is building — or breaking — next.