• One-time codes (TOTP): scan a site's 2FA QR, the code with its timer is right on the card.
• Passkeys: Secret Keeper is a passkey provider on Android 14+, iOS 17+, macOS 14+, Windows 11; move passkeys between devices by QR.
• Sign in on websites and share Vault data with no middleman: the site identifies itself in the QR code.