# New input parameters for use with custom rules

_July 17, 2018_

> **⚠️ Warning**
>
> This release note is more than two years old and may no longer reflect
> current behavior. View the
> [latest release notes](/minfraud/release-notes/).

We have released additional input parameters for use with custom rules.
Customers of minFraud Score, minFraud Insights, and minFraud Factors can now use
the following inputs to serve as the basis when creating a custom rule:

- IIN: `/credit_card/issuer_id_number` – The issuer ID number for the credit
  card. This is the first 6 digits of the credit card number. It identifies the
  issuing bank.
- Accept Language: `/device/accept_language` – The HTTP “Accept-Language” header
  of the device used in the transaction.
- IP (CIDR block): `/device/ip_address` – A network CIDR block