How to disable the NFC tag pop-up in iOS

When using a YubiKey with a mobile device over NFC (tapping the key to the device), you may encounter a website NFC tag pop-up. This behavior is expected and referred to as the NDEF / OTP pop-up.

If Yubico Authenticator is installed on the iPhone, you may receive the following pop-up:

If Yubico Authenticator is not installed on the iPhone, you may receive the following pop-up:

If you'd like to disable this functionality, you can do so by turning off the OTP over NFC functionality using Yubico Authenticator for iOS or Yubico Authenticator for Desktop.

 Note: This disables the OTP over NFC functionality, but will still work via direct plugin. You can re-enable this functionality at any time.

To disable the NFC tag pop-up using Yubico Authenticator for iOS

1. Open Yubico Authenticator.
2. In the top right corner, click on the three horizontal dots to open the menu.
3. Select Configuration.
   
   
   
4. On the Configuration page, select Toggle One-Time Password.
5. Scan the YubiKey.
6. Disable the One-Time Password option.

To disable the NFC tag pop-up using Yubico Authenticator for Desktop

1. Open Yubico Authenticator.
2. Plug in the YubiKey.
3. From the Home page, select Toggle applications on the right hand side.
   
   
4. Under NFC, de-select Yubico OTP.
5. Click Save.

 Tip: NDEF OTP is used in certain applications, for more information on this please see the following article.