User's Guide
Table Of Contents
- Payflow Fraud Protection Services User’s Guide
- Preface
- Overview
- How Fraud Protection Services Protect You
- Configuring the Fraud Protection Services Filters
- Assessing Transactions that Triggered Filters
- Activating and Configuring the Buyer Authentication Service
- Performing Buyer Authentication Transactions Using the SDK
- Testing the Buyer Authentication Service
- Buyer Authentication Transaction Overview
- Buyer Authentication Terminology
- Buyer Authentication Server URLs
- Detailed Buyer Authentication Transaction Flow
- Call 1: Verify that the cardholder is enrolled in the 3-D Secure program
- Call 2: POST the authentication request to and redirect the customer’s browser to the ACS URL
- Call 3: Validate the PARES authentication data returned by the ACS server
- Call 4: Submit the intended transaction request to the Payflow server
- Example Buyer Authentication Transactions
- Buyer Authentication Transaction Parameters and Return Values
- ECI Values
- Logging Transaction Information
- Screening Transactions Using the Payflow SDK
- Downloading the Payflow SDK (Including APIs and API Documentation)
- Transaction Data Required by Filters
- Transaction Parameters Unique to the Filters
- Existing Payflow Parameters Used by the Filters
- Response Strings for Transactions that Trigger Filters
- Accepting or Rejecting Transactions That Trigger Filters
- Logging Transaction Information
- Responses to Credit Card Transaction Requests
- Fraud Filter Reference
- Testing the Transaction Security Filters
- Good and Bad Lists
- AVS Failure Filter
- BIN Risk List Match Filter
- Country Risk List Match Filter
- Email Service Provider Risk List Match Filter
- Geo-location Failure Filter
- International IP Address Filter
- International Shipping/Billing Address Filter
- IP Address Match Filter
- Shipping/Billing Mismatch Filter
- Total Item Ceiling Filter
- Total Purchase Price Ceiling Filter
- Total Purchase Price Floor Filter
- USPS Address Validation Failure Filter
- ZIP Risk List Match Filter
- Deactivating Fraud Protection Services
- Index
Fraud Protection Services User’s Guide 77
Fraud Filter Reference
Unusual Order Filters
A
Filters Applied After Processing
Most filters are applied to the transaction request before forwarding the request to the
processor. The following filters are applied to the transaction results that the processor returns:
AVS Failure filter (described on page 79)
Card Security Code Failure filter (described on page 81)
International AVS filter (described on page 90)
Custom filters (described on page 91)
Transaction Data Required by Filters
“Downloading the Payflow SDK (Including APIs and API Documentation)” on page 51
provides the full list, for each filter, of each transaction value that you must send to Payflow.
For example, to ensure that the Total Item Ceiling filter can screen an order, you must provide
the total number of items that make up the order.
Unusual Order Filters
Unusual Order Filters identify transactions that exceed the normal size for your business.
Because fraudsters might not feel limited in their purchasing power, they sometimes place
orders that are much larger than the norm.
Total Purchase Price Ceiling Filter
What does the filter do?
This filter compares the total amount of the transaction (including tax, shipping and handling
fees) to the maximum purchase amount (the ceiling) that you specify.
The specified action is taken whenever a transaction amount exceeds the specified ceiling.
IMPORTANT:The Maximum amount per transaction setting in the Account menu controls
all transactions, even those that are less than or exceed the Total Purchase
Price Ceiling filter.
How does the filter protect me?
An unusually high purchase amount (compared to the average for your business) can indicate
potential fraudulent activity. Because fraudsters are not paying with their own money, they are
not price-sensitive.