Have a festive Pi Day, and be safe out there. #defcon #piday2025

friendly reminder to #defcon people everywhere 🚨 The open calls for #defcon33 Contests, Villages and Communities close March 15. If you've got a cool idea to propose, now is the time! Fortune favors the bold. Let's GO.

DEF CON® 33 Hacking Conference - Call Index

The open and closed calls index for DEF CON 33