CA RiskMinder Administration Guide › Geolocation and Anonymizer Data › Using the Negative IP Address List

Using the Negative IP Address List

The Negative IP Check Rule performs two functions within a single rule:

• The rule checks the IP addresses of end users against the list of known anonymizer proxies.
• The rule consults the Negative IP address list that you define to verify whether the IP is in one of the ranges defined in your table.

You can use the Manage List Data and Category Mappings page in Administration Console to add IP Addresses to the Negative IP address list. The rule performance for blacklisted IP addresses depends on how you manage your list. Typically, you add IPs to the list when you see fraudulent or risky access that you want to stop and you remove IPs from the list when a legitimate user requests for the same.

Note: You can review the transaction report to determine why an end user was blocked or challenged.