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Yubico Authenticator

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description Yubico Authenticator Overview

Yubico Authenticator is a hardware-based two-factor authentication solution that supports FIDO2 and USB keys. It provides strong security through physical tokens, making it ideal for businesses requiring high-level protection against phishing attacks. Yubicos robust security features and easy integration make it a reliable choice.

help Yubico Authenticator FAQ

Do I need a YubiKey to use Yubico Authenticator?

Yes, it's a companion app rather than a standalone authenticator — you need a compatible hardware key (such as a YubiKey 5 series model) for it to function. The app reads the credentials stored on the key itself rather than keeping them on your phone.

What's the advantage of Yubico Authenticator over Google Authenticator or Authy?

Your TOTP secrets are stored on the physical YubiKey instead of in your phone, so switching or losing your phone doesn't mean losing all your accounts at once. The same key also supports phishing-resistant FIDO2/WebAuthn logins, which software-only authenticator apps can't offer.

Which platforms does Yubico Authenticator run on?

It's available for Windows, macOS, and Linux via USB, plus Android and iOS, where supporting keys connect over NFC or USB-C. This lets you manage the same hardware key's credentials across desktop and mobile.

Can I use Yubico Authenticator for passwordless sign-in?

Not exactly — the app itself manages OATH codes (TOTP/HOTP) stored on your key. Passwordless FIDO2/passkey logins are performed directly by the YubiKey on websites that support WebAuthn, configured through each account's security settings.

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