Defcon’s new badge is a security key you can see inside
Summary
Defcon's badge introduces Baochip-1x, a mostly open-source hardware security token embedded in the conference badge. The removable core can be used as a stand-alone security device, with verifiable silicon via an infrared-inspectable package; the chip runs Rust, features secure boot, and has open-source firmware and OS code on GitHub. This represents a notable advancement in hardware trust, transparency, and potential future uses like a portable security token or HSM.