What is a YubiKey security key?
Discover how a physical key like YubiKey offers the most secure two-step authentication method to protect your online accounts.
What is a YubiKey?
YubiKey is a physical security key that protects access to your online accounts through a second authentication factor (2FA). It connects via USB or NFC and replaces SMS codes or apps like Google Authenticator.
How does it work?
When logging into a supported account, after entering your password, the system will prompt you to insert your YubiKey. By tapping it, a unique code is generated that automatically verifies your identity.
Advantages over traditional 2FA
- Doesn’t rely on your phone (no battery or signal needed)
- Impossible to clone remotely
- Protects even if your password gets leaked
- Supports Google, Microsoft, Facebook, GitHub, and more
Comparison of 2FA methods
| Method | Security | Convenience |
|---|---|---|
| SMS | Low ❌ | Medium |
| Mobile app (TOTP) | Medium ⚠️ | Good |
| Physical key (YubiKey) | High ✅ | Very good |
Recommended models
- YubiKey 5 NFC – Compatible con móvil y PC/Mac. Ideal para la mayoría. Ver en Amazon
- YubiKey 5C – Conexión USB-C, ideal para portátiles modernos. Ver en Amazon
- YubiKey Bio – Con lector de huellas. Mayor seguridad. Ver en Amazon
Final tip
Combine a YubiKey with a password manager and make sure to set up multiple recovery methods. Your digital security will be much stronger than relying on passwords alone.