How to setup Cryptnox FIDO2 card for Cloudflare on Mobile Account

Step by step tutorial FIDO2 card for Cloudflare on Mobile

Security Key Support Across Operating Systems and Web Browsers:


The availability of security key support may vary based on the operating system and web browser in use.


  • MacOS: Security Key support is available in browsers such as Safari and Firefox.
  • Windows: Most modern web browsers provide security key support.
  • Mobile devices: It is recommended to use the mobile web version of the service, as many applications redirect users to a mobile browser to complete the
    security key setup process.
setup Cryptnox FIDO2 card for Cloudflare on Mobile Account

Step 1

Log in to your Cloudflare account and go to “My profile”.

setup Cryptnox FIDO2 card for Cloudflare on Mobile Account

Step 2

Go to “Authentication“ and select “Set up” for Two-factor authentication.

Step 3

Enter your password and select “Next”.

Step 4

A pop up will appear and within that ensure to select the “Security key”. Then select “Continue”.

Step 5

The system will prompt the message to setup the security key. While the prompt is opening, tap the card at the back of the phone.

Once the card is registered properly, the system will ask you to put the PIN. Once you put in the PIN, select “Continue”.

Important: Ensure you remember your PIN. It is advisable to save it securely or write it down in a safe place. You will need this PIN the next time you log in to a site where you have set up security key authentication.

Step 6

The system will prompt the message tap the card again to activate it. Once it is done, it will automatically proceed to next step.

Step 7

Enter a name for your security key. This can be any name you choose. Then select “Next.”

Step 8

You have successfully setup the Cryptnox FIDO2 security key on Cloudflare account.