Card Verification Value (CVV)

Card Verification Value (CVV) is the three- or four-digit security code printed on a payment card, used to verify that the customer likely possesses the physical or virtual card during checkout.

Also known as: CVV, CVC, CID

Updated Aug 28, 2026by WeiJun Tang, SEO

Purpose

CVV helps reduce fraud in card-not-present payments where the card is not physically present at the terminal.

Handling rules

Merchants must never store CVV after authorization; doing so violates PCI DSS requirements.

Sources

  1. PCI Security Standards Council
  2. Visa cardholder verification

FAQ

  • No. CVV is printed on the card; PINs are entered at terminals or ATMs.

Related terms

  • Interchange Fee

    An interchange fee is a variable cost paid from the merchant acquirer to the card issuer for each card transaction, set by card networks and influenced by card type, region, and merchant category.

  • Address Verification Service (AVS)

    Address Verification Service (AVS) compares the billing address submitted at checkout with the address on file at the card issuer to flag mismatches that may indicate fraud.

  • 3-D Secure (3DS)

    3-D Secure (3DS) is an cardholder authentication protocol that adds a step-up challenge during online checkout so issuers can confirm the payer before authorizing high-risk transactions.

  • Foreign Exchange Spread

    Foreign exchange spread is the markup between the market reference rate and the rate applied to a merchant or payer during currency conversion, often combined with explicit FX fees in cross-border payments.

  • Payment Gateway

    A payment gateway is the technology layer that captures checkout payment details, routes authorization requests to acquirers or processors, and returns approval or decline responses to the merchant application.

  • Cross-Border Payment

    A cross-border payment is a transaction where the payer, merchant, acquirer, or settlement currency spans different countries, triggering FX conversion, local method requirements, and compliance checks.

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