Some of the most popular FIDO2 Hardware Security Key providers are:

Each has their own advantages and disadvantages. Some are multifunctional, and also serve as a cryptocurrency wallet, while others are specialized in providing security above everything else. It is up to you which provider you choose, we recommend starting with searching “fido2 Hardware Security Key comparison” in your preferred search engine or picking one of the popular Hardware Security Key providers we mentioned earlier.

Please review our How to enable Multiple 2FAarticle, which explains how to set up a Security Key for two-factor authentication (2FA). 

Updating your Sign-in 2FA from a Hardware Security Key that uses YubiKey OTP to a Hardware Security Key that uses FIDO2 takes less than a minute!

If you no longer have access to your Hardware Security Key, please fill out this form.

Yubico OTP is a protocol that is supported by all Hardware Security Keys from Yubico (i.e. YubiKeys) and generates a unique 44-character passcode when touched while plugged into a device. This passcode can only be used once and is significantly more secure than an authenticator app, due to an app only generating a 6-8 character passcode.

FIDO2 is a protocol that prevents phishing by verifying the legitimacy of the website you use the Hardware Security Key for. A private key is stored on the Hardware Security Key together with a corresponding public key that is bound to the Kraken website. Kraken will send a challenge for your unique Hardware Security Key every time someone attempts to sign in with your username and password. The Hardware Security Key will use its private key to respond to Kraken if it can verify that the challenge came from the correct website and will only then allow you to sign into your account. Since a FIDO2 Hardware Security Key can only authenticate services that you have previously registered, it will prevent you from entering the correct passcode on a website that is imitating Kraken.

Depending on the device you use, you may be prompted to set or use a PIN when using a FIDO2 key. For an overview on how to set or use a PIN you can visit the website of your Hardware Security Key manufacturer. For example, if your Hardware Security Key is a YubiKey, you can find more information on how to manage your Hardware Security Key's PIN on Yubico's website.