Verified65% confidenceFactExact time
Hardware security keys (such as YubiKey) implement the FIDO2/PIV protocol to ensure that private keys never leave the hardware device.
3
Sources
65%
Confidence
Long-term
Relevance
7/14/2026
First Seen
Sources
Grok越权上传用户目录：AI Agent权限边界的安全警示
Related Claims
VerifiedPasskey is based on the W3C WebAuthn standard and the FIDO Alliance's FIDO2 specification, with asymmetric key encryption at its core, where the private key is securely stored on the device and never leaves it.77% similarVerifiedThe FIDO2/WebAuthn protocol is based on asymmetric public-private key cryptography; the private key never leaves the hardware device, enabling resistance to phishing attacks.76% similarUnverifiedVendor keys are encrypted at rest using a Fernet master key; the master key is generated at first startup, persisted to a Docker volume, and never leaves the container.76% similarUnverifiedPrivate keys are typically bound to a device's security chip (such as Android's StrongBox or TEE Trusted Execution Environment).76% similar
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