A physical security key is a hardware-based authentication method used to verify account access and transactions. Unlike software-based options, physical security keys operate offline and don't rely on cloud services, minimizing risks like account takeovers or unauthorized access.
Why Choose a Physical Security Key?
Physical security keys add an extra layer of protection, especially against vulnerabilities in software-based options like authentication apps and passkeys. While software solutions offer convenience, they come with potential risks:
- Authentication Apps: Losing access to your device (e.g., Google or Microsoft Authenticator) could expose your authentication codes. Device theft also poses a threat if the screen lock security is compromised.
- Passkeys: Though more secure than passwords, they depend on third-party account synchronization and can be accessed if the linked device is stolen and unlocked.
If you're new to this technology, here are key advantages and limitations to consider:
| Advantages | Limitations |
|---|---|
| Operates offline, eliminating cloud synchronization risks | Requires time to learn hardware usage |
| Cost-effective compared to dedicated authentication apps | Must carry the device for access |
| Resistant to phishing and malware attacks | Losing the device or PIN may cause access issues |
How to Use a Hardware Security Key
We support advanced authentication methods, including hardware security keys, to protect your account. You can use a hardware key in two main ways:
1. Passkey-Based Authentication
Use your hardware key to verify your identity during logins and sensitive actions like withdrawals. Follow these steps to set it up:
- Navigate to your account settings and select Profile & Security.
- Go to Security Center > Passkey > Add Passkey > Use External Key.
- Follow the prompts to confirm your PIN and complete the linking process.
Once configured, your hardware key can be used for secure logins and transactions.
2. CAPTCHA-Based Single Authentication
Similar to traditional authenticators (e.g., Google Authenticator), this generates time-based one-time passwords (TOTP). To set it up:
- Visit Profile & Settings in your account.
- Go to the Authentication App Linking page and copy the provided key.
- Store the key in your hardware device to generate verification codes.
This method enhances security for actions requiring one-time passwords.
Where Can You Use a Physical Security Key?
Physical security keys are compatible with two primary scenarios:
- Passkey-based authentication.
- Generating one-time passwords (OTPs) for added security, similar to using apps like Google Authenticator.
How to Buy a Trusted Physical Security Key
When purchasing a physical security key, choose reputable brands like YubiKey or Ledger from trusted retailers. These devices offer robust security without cloud dependency and work seamlessly with authentication systems.
👉 Explore trusted security key options for detailed setup guides post-purchase.
FAQs
Q: Can I use multiple security keys for one account?
A: Yes, you can link multiple hardware keys to your account for backup access.
Q: What happens if I lose my physical security key?
A: Contact support immediately to disable the lost key and set up a replacement.
Q: Are hardware security keys compatible with mobile devices?
A: Most modern keys support USB-C or NFC for mobile compatibility.
Q: How often should I replace my security key?
A: Replace it only if damaged or if newer models offer enhanced security features.
Q: Can security keys be hacked?
A: Hardware keys are extremely resistant to hacking due to offline operation and encryption.
Q: Do I still need a password with a security key?
A: Yes, security keys act as a second factor; always pair them with a strong password.
👉 Learn more about advanced security measures to protect your digital assets.