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Digital Meaning of golden sunflower card Signature Column of China Merchants Bank
Card number or security code.

The last three digits of the signature column are security codes, and you can't tell others. When someone transfers money to your card, you only need to tell the other party the card number of your bank card, that is, 16-digit card number.

Pay attention to privacy protection. You can go to bank outlets or public security organs for help if you encounter problems.