What is a PIN and its essence?

PIN means Personal Identification Number. It is a secret 4 digit number that is assigned to you by your bank and is used as your ID in order to identify you. It provides enhanced security. These 4 digits will be important for you to remember. You will not be able use the ATMs, POS and other payment terminals without a PIN. You are advised to change your PIN after first usage. Please make sure this number does not start with zero (0452), it does not use sequential numbers (1234), or have all repetitive numbers (4444).Please do not tell anyone your PIN.