AShop V User's Guide download pdf (Page 175)

Installation & Setup 175

2.28.3.4 Credit Card Fraud Prevention

Credit card fraud can be a nuisance and can indirectly damage your credit. Credit card issuing banks

and organizations have developed security devices to prevent unauthorized use of credit cards. Not all

banks support all security devices and not all payment processors or payment gateways support them.

This help topic is not intended to be a comprehensive coverage of credit card fraud prevention, only some

notes about what we have experienced and what works for us.

TeleSign Automated Telephone Call Verification

It seems that the security codes and address verfication (below) have inherent limitations. For instance,

once the security code is given out, it is likely to be pirated along with the credit card number and

expiration date. Address verification is not supported by all banks and fails often when PO boxes or ATM

Visas are submitted. A new and very effective solution is TeleSign automated telephone call verification

service.

CVV2 3-Digit Security Code

The 3-digit CVV2 security code can be found on the back of most US issued credit cards.

Requiring a security code match reduces exposure to fraud. The drawback is that most non-US issued

credit cards don't support it. Depending on your business location and where your customers are, this

may not be an option. For US merchants selling mostly to US customers, it is highly effective. An

alternative payment option, such as the offline credit card processing option can be used in conjunction

with the real time gateway in order to accommodate cards that do not support the security code.

Authorize.Net Security Code Settings

Under Security, click Card Code Verification

Check the boxes to activate code check conditions. Check all of them for the highest level of security. If

you find that cards are rejected too often, look at the rejection code to evaluate how it is working and

adjust accordingly for your customer base.

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AShop V User's Guide Page 175

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