minFraud services now handle 8 digit IINs

We have updated the minFraud service to handle 8 digit credit card issuer ID numbers (IINs). These are non-breaking changes.

• The credit_card/issuer_id_number input can now receive 6 or 8 digits.
• The credit_card/last_4_digits input has been renamed credit_card/last_digits, and receives 2 or 4 of the last digits of the credit card.
  • The credit_card/last_4_digits input will continue to work as an alias for the new credit_card/last_digits input.
• In some cases with longer IINs we will truncate the credit_card/last_digits input so that we process only the data required for risk scoring. If we truncate the last digits, the minFraud service will return a warning message.
• If you send 8 digits for the credit_card/issuer_id_number, but we do not recognize an 8 digit IIN, we will truncate the input to 6 digits. If we truncate the IIN, the minFraud service will return a warning message.

Learn more about how to pass the correct number of digits for credit card inputs in our developer portal:

• credit_card/issuer_id_number
• credit_card/last_digits

You can read more about these changes in the announcement on our blog.

If you would like to learn more about how to properly handle credit card numbers, you can read more at pcisecuritystandards.org.