users need to submit photos of the front and back of the original ID card when applying for a credit card online, and the original ID card when applying offline. The credit card must be handled by myself, so the ID card is an important identity information material. If the user's ID card is expired or lost, other identification materials need to be submitted.

In addition, the user's ID information must be properly kept, and it is not easy to disclose his ID number and ID photo.