If you DO know answers to above questions, you have a potential edge on your competition. You have information needed to make marketing decisions that can increase your sales.

4. Another high-risk transaction is two or more orders from same credit card. 5. When in doubt, phone number listed on order.

6. US banks have an Address Verification System (AVS) that merchants can use to ensure billing address purchaser has given matches one in AVS system.

7. If you use an online order processor, make sure it has thorough fraud prevention measures.

8. Put a message on your site warning crooks you have anti- fraud protection in place.

9. Create a blacklist of bad credit card numbers so you won't get ripped off twice by same thief.

10. If you want an extra sense of security, insurance coverage is now available against this type of fraud. One reputable site that offers it is http://www.iib.com.au/