Overseas credit card consumption: you don't need to open a business, you need to see what kind of credit card it is.
1. Card with foreign currency card organization logo (VISA or MASTER logo): You can swipe your card directly abroad without entering a password for verification;
2. Credit card with UnionPay logo: You need this card reader to support UnionPay card swiping. In addition, password verification is only used in China. When spending abroad, you don't need to enter the password verification of the credit card, just swipe your card directly.
Extended data:
Generally speaking, when we travel abroad or do other things, we'd better choose a credit card in local currency, such as using a US dollar card to go to the United States and a Euro card to go to continental Europe. The advantage of this is to avoid currency conversion fees, and most banks in the same currency are exempt from currency conversion fees.
References:
International Credit Card-Baidu Encyclopedia