Why does Ctrip warn you about the risk of fraud when buying air tickets?

The reasons why Ctrip will remind you of the risk of fraud when buying air tickets are as follows:

1. Whether the computer security level and the security factor of the payment system are too low.

2. Credit card payment is a non-magnetic and non-secret transaction mode. The prerequisite for such transactions is that the bank will conduct a credit check on the merchant.