Yes, losing the device becomes a bigger deal. (Backup codes or a second hardware key solve that.) And yes, it’s slightly less convenient than cloud sync.
These keys are forged inside a single piece of hardware—your YubiKey, your Pixel’s secure chip, or your Mac’s Secure Enclave—and they never leave . Not for backup. Not for sync. Not for a friendly "hey, share this with your tablet." device-bound passkeys
That world is here. They’re called .
But for the first time in decades, we have a tool that truly eliminates remote credential theft. Not reduces it. Eliminates it. Yes, losing the device becomes a bigger deal
They are bound to that device by physics and cryptography. Not for backup
Because even if a hacker steals your laptop’s hard drive, breaks into your password manager, or tricks you into clicking a phishing link that looks exactly like your bank… they walk away empty-handed. Without your specific, physical device in their hand, the key simply doesn’t work.