Defcon 2025. Defcon is the largest underground hacking conference that unites hackers, it experts, and government entities to learn from leading professionals and participate in hacking competitions in las vegas. The #defcontraining 2025 call for trainers is live!
Level up in the new year with actionable knowledge. Your festival guide to defqon.1 netherlands 2025 with dates, tickets, lineup info, photos, news, and more.