If using an iPhone X, please make sure the following conditions are met in order to use IBKR Mobile Authentication (IB Key) with the iPhone's FaceID technology:
- FaceID (instead of TouchID) is enabled to unlock the iPhone (iPhone Unlock is switched to ON/Green). When you log in and use IBKR Mobile Authentication (IB Key), it will ask you to use FaceID instead of Touch ID, no matter if you're logging in Seamlessly or with a Challenge number.
- The IBKR Mobile Authentication (IB Key) app on the iPhone X is a new download from the App Store and is not synced from the old phone via iTunes or Cloud backup.