Defcon's new badge is a security key you can see inside

A removable chip lets hackers inspect their badge—and keep using it after Defcon. https://arstechnica.com/security/2026/08/defcons-new-badge-is-a-security-key-you-can-see-inside/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social