FIDO2 / WebAuthn
Phishing-resistant authentication using public-key cryptography.
Origin
WebAuthn became a W3C Recommendation in March 2019. Apple, Google, and Microsoft jointly announced passkey support in 2022, syncing FIDO2 credentials via cloud keychains — the consumer end of the password.
Where it shows up in production
- Passkeys Apple iCloud Keychain, Google Password Manager, and 1Password all sync FIDO2 credentials across devices.
- GitHub / Google / Microsoft All three accept passkeys as a first-class second factor or full credential.
- YubiKey / Titan Key Hardware FIDO2 authenticators — phishing-resistant by construction.
Sources & further reading
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