Six Ways to Combat
Credit card fraud.
It's one of the biggest problems that
eBusinesses face. The most effective means of deterring online credit
card fraud are:
Real-time credit card authorization:
authorizing credit card payments in real-time, before approving the
sale, assures you of a valid credit card number that has not been
Address Verification System (AVS):
this verifies that the billing address matches the address on file for
that card. Although AVS provides some level of protection, our
experience tells us that you will see a number of "false-positive"
readings. You need to employ other fraud tools.
Card Verification Codes (CVV2):
you'll find the CVV2 number on the back of the credit card (the last
three digits, after the account number). CVV2 is not on the magnetic
stripe and is not to be stored online. By requiring customers to
provide the CVV2 number, you have fairly high assurance that the buyer
is holding the physical card.
"out-of-band" means that you verify the authenticity of the buyer
outside of the Internet. For example, it is now possible to place a
real-time, automated phone call to the buyer while they're shopping on
your site, asking them to enter the confirmation code appearing on
their screen. This gives you great assurance that the buyer is
Rule-based fraud detection:
a simple set of 30-40 "if-then" rules can catch the majority of online
fraud. For example, you may wish to deny all orders coming from
Eastern European countries that list a free email account (a common
profile for fraudulent orders).
Neural network systems:
neural-network systems calculate scores for an order to determine how
likely it is to be fraudulent. Neural networks are very good at
catching certain types of fraud, but are expensive and complicated to