The CVV number or, to be more precise, CVV2 is a three-digit or rarely a four-digit code for verifying the authenticity of the plastic card when paying for the goods and services on the Internet. It is used, for example, for depositing funds from a card into a trading account and other types of operations when the card is not present. This code is considered an ultimate confirmation data when one pays by the card via the Internet in any payment systems.
Previously, there were cards that were neither bank nor ordinary plastic ones. The purpose of these cards was to confirm the credit capacity of the cardholder outside the bank. In 1914, some enterprises and oil companies began issuing special tickets to their richest regular customers in order to connect these customers with their business entities.