PayPal Permissions Service - 2013 Uživatelská příručka stáhnout pdf (Strana 88)

Fraud Filter Reference

High-risk Customer Filters

88 Fraud Protection Services User’s Guide

fraudster making repeated attacks on a system. Legitimate customers do not typically perform

multiple transactions in quick succession.

How does the filter protect me?

Fraudsters often submit multiple purchases using an automated script that tests unknown card

numbers. Alternatively, the fraudster may attempt to bypass other filters by making multiple

small purchases with multiple stolen account numbers.

High-risk Customer Filters

Bad Lists

What does the filter do?

This filter compares the customer’s e-mail address and credit card number against lists (that

you create) of addresses and numbers for known bad customers.

NOTE: Unlike the Risk lists managed by PayPal, you, solely, manage and update the Bad

Lists.

Any transaction that is an exact match with an entry in one of your bad lists triggers the filter.

If you enable this filter, then your next step will be to set up lists of bad email addresses and

bad card numbers. Be sure to type the e-mail addresses and credit card numbers accurately.

Enter only numerals in the credit card number list—no spaces or dashes.

NOTE: Items that you enter in the test Bad lists are not carried over to your configuration for

the live servers, so do not spend time entering a complete list for the test configuration.

How does the filter protect me?

This filter enables you to block repeat fraud.

In the e-commerce world, once someone successfully performs a fraudulent transaction, they

are very likely to try again. For this reason, you should set up lists of cards and email addresses

and configure this filter to take action on transactions with data elements appearing in the bad

lists.

International Order Filters

International Order Filters identify transactions associated with risky international locations.

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PayPal Permissions Service - 2013 Uživatelská příručka Strana 88