Thank you for always concerned about us.
I have to reply in #3:
Secondly, No absolute safety. So we use RFID medium, and RFID communicate need to use keyA/keyB. keyA/keyB is generated based on personal password. If you do not know the personal password, you cann't forge a new RFID medium to communicate.
Finally, everything needs to touch the hardware wallet.

Security is a set of systems, not just a step.

Single verification forever insecure, all are complementary.
Bypass the fingerprint verification must come into contact with your hardware wallet and RFID medium, you are missing any one, is unable to complete the transaction.

You have been saying unreliability fingerprint module, you still don't understand our system.