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caugier-scw
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Jun 30, 2026
caugier-scw
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Some points that occur in multiple parts of the document :
- it was already there, but passkey is the true passwordless login, when using webauthn as a second factor, we use "security key" instead
- Identity Verification is actually called User Verification (UV in short)
- When starting a webauthn authentication, it is not necessarily the password manager which is triggered, it can be a browser-managed pop-up, or OS depedent
caugier-scw
reviewed
Jul 3, 2026
| - As a second factor login method (2FA): after entering your password, SSO credentials, or an authentication code, a passkey confirms your identity. | ||
| - As a passwordless login method (1FA): if your passkey supports identity verification, it handles both factors in a single gesture, no password required. | ||
| - As a passwordless login method (1FA): if your passkey supports user verification, it handles both factors in a single gesture, no password required. User verification means your device confirms that you are the authorized owner before releasing the passkey, typically via a biometric check (fingerprint, Face ID) or a PIN. For example, a macOS passkey protected by Touch ID supports identity verification. | ||
| - As a second factor login method (2FA): if your passkey does not support user verification, it acts as a WebAuthn security key — confirming possession of the device after a first factor (password, SSO, or authentication code). |
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Maybe replace 1FA by MFA in a single step
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