Defcon Las Vegas 2025 Tickets. Defcon (aug 2025), las vegas usa trade show, def con is a hacker convention which takes place immediately following black hat in las vegas every year. After august 2, 2025, def con tickets are only available for purchase at def con during their ticket sales.

Def con is a hacker convention which takes place immediately following black hat in las vegas every year. Registration for the def contraining 2025 in las vegas is open!