Recommendations
| Provider | Links | Note |
|---|---|---|
| ⭐ YubiKey | Documentation Compare Yubico Authenticator Privacy Policy | ⚠️ YubiKey firmware isn't updateable. To get newer features or address vulnerabilities, you'll need to buy a new key. |
| OnlyKey | Source Code Documentation Privacy Policy | |
| Nitrokey | Source Code Documentation Privacy Policy |