What tools are merchants using to ferret out fraudulent orders? Below, highlights from a recent survey:75% Address verification service. Checks that billing address listed by customer matches billing address on file with credit card company.66% Card verification number. Asks customer for an extra security code, often printed on the back of a credit card above the signature lines.32% Address point verification. Confirms a valid shipping address.29% Payer authentication services. Prompts users who have signed up for Verified by Visa or MasterCard's SecureCode for an additional password.28% Company-specific fraud screens. Checks order against company-specific data, such as typical order quantities.27% Negative lists. Checks mailing address against a database of addresses associated with past chargebacks or fraudulent activity.25% Automated decision\/order screening. Uses a system that filters inbound orders based on business rules, automatically marking each order "accept," "reject" or "review."25% IP geolocation information. Checks whether the IP address of the computer used to place the order is physically near either the shipping or billing address.24% General industry model fraud screens. Checks for anomalous behavior that's not specific to the merchant.23% Velocity monitoring. Looks for patterns such as multiple orders going to one address or multiple customers with the same IP address or e-mail address.