Remove the CVV from the back of the credit card. For all credit card transactions where the card is being swiped, an acknowledgement must be received by the bank from the customer either through SMS or phone call. For online credit card transactions, along with the credit card number and CVV, some other vital information which is very private to the customer such as date of birth should be made compulsory. And every time, they need not ask DOB itself, they can keep changing for every transaction. Some examples are DOB, pincode, area name pincode etc.
