The "four major pieces" include the card owner's name and reserved mobile phone number, ID number, bank card number, and bank card password.

Bank

Card

Is issued to the society by financial institutions such as commercial banks and postal savings and remittance institutions with the functions of consumer credit, transfer settlement, A credit payment instrument with full or partial functions such as depositing and withdrawing cash. Bank cards include credit cards and debit cards. Because various bank cards are made of plastic and are used for deposits, withdrawals and transfer payments, they are also called "plastic money".