What is the basic difference between Credit Card Authentication and Credit Card Authorization ?

Explanation

Credit Card Authentication is the process of assuring that a credit card transaction has been initiated by an authorized user of that card. From the merchant’s point of view, authentication means getting the right information from the consumer, and having it verified by the transaction network. In recent years, authentication has been stepped up by means including security codes on credit cards.

Credit card authorization is an approval that the customer has sufficient funds on their card to pay for the transaction.Whenever a transaction is made with a credit or debit card, the merchant sends a request to the acquirer, usually through a credit card processor, such as SecurionPay.