What does China Bank mean by sending a text message saying that it is involved in fraud?

Abnormal transfer, lending the card to others.

1, abnormal transfer or frequent transfer triggered the monitoring system of the bank, so it was suggested that it was suspected of fraud prevention.

2. If you lend your bank card to others, or others use their own identity information to do bank cards and engage in online fraud activities, you will also receive fraud-related information.