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Internet credit card processing
By: Jack Chevalier, Sat Dec 31st, 2005
According to emediawire.com, Internet Credit Card Processing
requires more security and aggressive fraud controls than retail
credit card processing because the credit card cannot be
verified by swiping the credit card like with a retail merchant
account. For this reason it's very important to deal with a
company that specializes in internet transactions and Internet
Merchant Accounts. An Internet Merchant Account does not require
a shopper's signature and has requirements beyond a typical
card-not-present or retail merchant account. Features that
maintain security Prevent Duplicate Transactions - This feature
tracks recent transactions to ensure the same transaction is not
authorized more than once. This eliminates problems due to
"double clicking" the transaction submit button as well as
duplicate submittal of batch transactions. Transactions are
tracked for duplicates over a one hour time period. Address
Verification - Address Verification Service (AVS) matches the
known address information associated with the given credit card
number against the billing address information provided by the
user. If the information does not match, the transaction is
declined. The merchant has the option of choosing the level of
match required for an approved transaction. The service only
applies to credit card transactions. Negative Account Blocking -
Enables a filter on account numbers. Transactions with account
numbers on this list are declined. The Base level utilizes a
database of negative account numbers maintained by this service
provider. With the Merchant level, merchants can maintain their
own list of negative account numbers. Account Number 3DES
Encryption - This option allows you to enable triple DES (3DES)
encryption of the account number when submitting transactions
using the key. A 48 character key will be generated that you
will be required to use to encrypt the account number with
before submitting it to the gateway. Transactions received by
the gateway via the API that were not encrypted with your key
will be declined. Merchant Pin - The Merchant PIN acts as a
private password that you can enable on transactions submitted
through the API. This option helps ensure that only transactions
submitted from you the merchant are processed on your account.
Transactions that are submitted that don't have the correct
Merchant PIN will be refused.
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