PayPal Permissions Service - 2013 Betriebsanweisung PDF herunterladen (Seite 78)

Fraud Filter Reference

Unusual Order Filters

78 Fraud Protection Services User’s Guide

Total Item Ceiling Filter

What does the filter do?

This filter compares the total number of items (or volume for bulk commodities) to the

maximum count (the ceiling) that you specify.

The specified action is taken whenever the item count in a transaction exceeds the specified

ceiling.

How does the filter protect me?

An unusually high item count (compared to the average for your business) can indicate

potential fraudulent activity. Fraudsters frequently attempt to order large numbers of attractive

items that can easily be resold.

NOTE: In addition, some items are more susceptible to fraud than others. For example, a

computer can be resold for much more money than can a pair of sport shoes. The

likelihood of selling the item quickly is also a factor.

Shipping/Billing Mismatch Filter

What does the filter do?

This filter screens for differences between the shipping information and the billing information

(street, state, ZIP code, and country).

The specified action is taken whenever the shipping information differs from the billing

information.

Data Normalization

The Shipping/Billing Mismatch filter is tolerant of minor address inaccuracies that result from

typographical or spelling errors. The filter checks relationships among the street address, city,

state, and ZIP code and determines if a minor change is needed before screening the

transaction.

NOTE: This normalization is performed purely on the billing and shipping data, and does not

authenticate the customer.

Because this normalization happens during data validation by the Payflow server, the data as

entered by the customer will still appear in its original form on all transaction data review

pages. This means that you might see the following entries not flagged as mismatches on the

Fraud Details page:

Billing Shipping

Steve Morrison Steve Morrison

4390 Ramirez 4390 Ramires

San Francisco, CA San Francisco, CA

94114 94113

How does the filter protect me?

There are legitimate reasons for a shipping/billing mismatch with a customer purchase—for

example, gift purchases might fit this profile. But a mismatch could also indicate that someone

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PayPal Permissions Service - 2013 Betriebsanweisung Seite 78