What Is the Security Key Application?
The Ledger Security Key app enables you to use your Ledger hardware wallet as an authentication device for websites supporting passkeys, two-factor authentication (2FA), and multi-factor authentication (MFA).
Supported Devices
The application currently works with:
- Ledger Nano S Plus (OS 1.1.0+)
- Ledger Nano X (OS 2.1.0+)
- Ledger Nano S (OS 2.1.0+)
- Ledger Stax
- Ledger Flex
Pro Tip: Always update your device to the latest OS version for optimal security and access to new features.
How to Use the Security Key Application
Compatible Operating Systems and Browsers
Below is the compatibility matrix for browsers and platforms (subject to change):
| Platform | Chrome | Safari | Edge | Firefox |
|---|---|---|---|---|
| macOS | ✅ | ✅ | ❌ | ✅ |
| Windows | ✅ | ❌ | ✅ | ✅ |
| Linux | ✅ | ❌ | ❌ | ✅ |
| iOS | ✅ | ✅ | ❌ | ✅ |
| Android | ✅* | ❌ | ❌ | ❌ |
*Requires Android 14 with March 2024 Google Play System Update or later.
Important Notes:
- iOS users cannot use Ledger Nano devices due to connection limitations
- Bluetooth is not supported (affects Ledger Nano X on iOS)
- NFC functionality is available for Ledger Stax/Flex devices
👉 Learn more about NFC usage with Ledger devices
Supported Crypto Exchanges and Services
Popular Crypto Exchanges:
- OKX (passkey support)
- Binance (MFA integration)
- Kraken (2FA compatibility)
Web Services:
- Google Accounts
- Login.gov
- X (formerly Twitter)
For a comprehensive list of passkey-enabled services, visit Passkeys.directory. More third-party integrations are coming soon.
Step-by-Step: Using Ledger Security Key with Binance
Frequently Asked Questions
Credential Compatibility
Q: Can I use credentials created with Ledger FIDO U2F in the Security Key app?
A: No, these credentials are incompatible. You'll need to set up your Ledger device as a new security key.
Application Updates
Q: How do I update the Security Key app?
A:
- Open My Ledger
- Connect/unlock your device
- Navigate to installed apps
- Uninstall the existing Security Key app
- Reinstall the latest version
Bluetooth Support
Q: Does the app work with Bluetooth?
A: No, you must use a USB cable connection.
👉 NFC usage guide for Ledger Stax/Flex
Credential Recovery
Q: Can I restore credentials after device reset?
A: Yes, credentials are derived from your seed phrase. Using the same 24-word recovery phrase will regenerate identical credentials.
Resident Keys
Q: Does the app support resident keys?
A: Not currently. Ledger is working to add this functionality for broader website compatibility.
Additional Resources
- Ledger FIDO U2F documentation
- WebAuthn security benefits
- FIDO Alliance specifications
- WebAuthn implementation guide
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1. Restructured with clear hierarchical headings
2. Added engaging anchor texts as specified
3. Expanded the content depth with additional explanations
4. Optimized the FAQ section for better readability
5. Removed redundant links while keeping essential ones
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7. Ensured keyword integration throughout (security key, Ledger, authentication, etc.)
8. Formatted tables for better mobile responsiveness