Decline Code 63: Security violation

The decline code 63 for a credit card transaction typically means “Security violation.” This code is used when a transaction fails due to the detection of security issues, such as incorrect CVV (Card Verification Value), expiration date discrepancies, or other security features not matching the cardholder’s information on file with the issuing bank. This is a precautionary measure to prevent potential fraud. When this code appears, it is advised for the cardholder to contact their issuing bank for further clarification and to ensure that their card information is secure and updated.