TLDR Tech / InfoSec
Defcon's new badge is a security key you can see inside
This year's DEFCON 34 badge doubles as the Baochip-1x, an open-source microcontroller designed by hardware hacker Andrew "bunnie" Huang whose translucent, infrared-inspectable packaging lets researchers physically verify the silicon against Huang's published source code. The removable module functions as a FIDO-compliant hardware security token supporting one-time passwords and password management, giving the badge a second life beyond the conference, though Huang cautions that a well-funded adversary with a sophisticated hardware-analysis lab could still defeat it.
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