Amazon Fraud Detector will no longer be open to new customers starting November 7, 2025. If you would like to use Amazon Fraud Detector, sign up prior to that date. For capabilities similar to Amazon Fraud Detector, explore Amazon SageMaker, AutoGluon, and AWS WAF.
Lists
A list is a set of input data for a variable in your event dataset. You use the input data in a rule that’s associated with your
detector. A rule is a condition that tells Amazon Fraud Detector how to interpret input data during a fraud prediction. For example, you can create a list of
IP addresses and then create a rule to deny access if a specific IP address is in the list. Rules that use lists are expressed in the
$ip_address_value in @list_name format.
With Amazon Fraud Detector, you can manage a list by adding or removing data without needing to update an associated rule. A rule associated with your list automatically incorporates newly added or removed data.
A list can contain up to 100,000 unique entries and each entry can be up to 320 characters long. Every list you use in a rule is, by default, associated with Amazon Fraud Detector’s Variable types FREE_FORM_TEXT. You can assign a variable type to your list at any time. You can use up to 3 lists in a rule.
You can create a list, add entries to the list, delete a list, or delete one or more entries in the list, or assign a variable type to your list in the Amazon Fraud Detector console, using the API, using the AWS CLI, or using the AWS SDK.
