The format of Hong Kong credit cards is as follows:

Credit card number: usually 16 digits.

Credit card holder’s name: Follow the spelling of the English name.

Credit card validity period: usually expressed in months/years, for example, 06/24 means expiration in June 2024.

Security code: Generally 3 or 4 digits, used for identity verification during online transactions. Their location is at the bottom left of the credit card.