IP addresses can also be classified with an anonymizer status. You can control the types of anonymizer IPs that you include in the rule. The different categories of negative IP types are:
It is recommended that you either set the rule to the defaults listed or that you clear Suspect IPs. While the use of an anonymizer does not necessarily indicate intent to commit a crime, it is highly suspicious because the user is masking their location. For example, users may be participating in marginal activities such as accessing gaming from a country where it is not allowed or accessing video or music content from a region that is not licensed. The hit rate for this rule is highly variable by customer because it is influenced by the portfolio of end users. However, the approximate review rate based on Anonymizers is 0.1% (one in 1000 transactions). False positive rates tend to vary greatly from as low as 20:1 for US and European users to as high as 100:1 for less developed regions.
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