MaxMind Credit Card Fraud Detection service calculates a Score using a formula based on known risk factors and their likelihood to indicate possible fraud. For orders that return a fraud score of 2.5 and above, it is recommended to hold for review, or require the validation with the Telephone Verification service.

For a better understanding of why we look at these variables, please visit our Online Fraud Info page for more information.

Risk	Check
E-mail Domain	E-mail associated with transaction matches any of the free e-mail services, such as Hotmail.
Geographic Source	Country of IP address associated with the transaction matches country specified in the billing address.
Anonymous Proxy	IP address associated with the transaction is an Anonymous Proxy.
High Risk Country	IP address or billing address is in Egypt, Ghana, Indonesia, Lebanon, Macedonia, Morocco, Nigeria, Pakistan, Romania, Serbia and Montenegro, Ukraine, or Vietnam.
Distance	Estimated rounded distance between the IP address location and billing location.
BIN Number Match	Country of issuing bank matches country of IP address based on BIN number.
High Risk E-mail	Whether e-mail is in database of high risk e-mails.
High Risk IP Address	Likelihood of IP Address being an Open Proxy.