Defcon 2025 Badges Feature Open Source Chip That Works as a Security Key

This year's Defcon security conference badges feature a unique open source chip designed by renowned hardware hacker Andrew 'bunnie' Huang. The chip embedded in the badge is capable of functioning as a security key, adding a practical dimension beyond the traditional puzzle-based badge design. Huang's creation aims to push the boundaries of both hardware security and transparency in chip design. The badges reflect a broader effort within the security community to promote open, auditable hardware solutions.