What does cvc mean when ordering online?

CVC stands for Card Verification Code, a three or four-digit security code found on Credit and Debit Cards. It is used to verify that the person making the online purchase has physical possession of the card. For Visa, MasterCard, and Discover cards, the CVC is typically the last three digits printed on the back, while for American Express, it's the four-digit code on the front. Providing the CVC helps enhance security during online transactions.