Xiamen International Bank Mobile Phone Shield, according to the usage rules of Xiamen International Bank Mobile Phone Shield, the specific usage methods are as follows: users fill in the transaction information in the App to confirm the transaction; Perform biometric authentication such as fingerprints or use digital passwords according to App prompts; The mobile phone shield displays transaction information in secure mode, and the user can confirm it directly or enter a digital password to confirm it; The mobile phone shield returns the signature result, and the App completes the transaction.