First, when spending money through the UnionPay channel abroad, the cardholder needs to enter the password and compare the cardholder's signature with the signature on the back of the credit card;

Second, if you take the VISA or Master path, you generally don't need to enter a password, and some credit cards abroad only have a four-digit password, which is different from the six-digit password in China. Credit card spending only needs to compare the cardholder's signature.