Method and system for detecting payment account fraud
First Claim
1. A method for detecting payment account fraud, comprising:
- a. selecting one or more new or newly active payment accounts from a set of payment accounts, the step of selecting the one or more new or newly active payment accounts comprising, for each payment account of the set of payment accounts, excluding the payment account from the one or more new or newly active payment accounts if a transaction activity increase factor of the payment account, from a first time period to a second time period, was less than a threshold increase factor, the second time period being subsequent to the first time period; and
b. selecting one or more suspect merchant accounts from a set of merchant accounts, the step of selecting the one or more suspect merchant accounts comprising at least one of the following steps for each merchant account of the set of merchant accounts;
i. excluding the merchant account from the one or more suspect merchant accounts if a number of the one or more new or newly active payment accounts used to conduct at least one transaction with the merchant account during a third time period is less than a first threshold number or greater than an upper limit, ii. excluding the merchant account from the one or more suspect merchant accounts if a first fraction is less than a first threshold fraction, the first fraction comprising;
(A) a number of transactions conducted with the merchant account during the third time period using at least one of the one or more new or newly active payment accounts, divided by (B) a total number of transactions conducted with the merchant account during the third time period, iii. excluding the merchant account from the one or more suspect merchant accounts if a second fraction is less than a second threshold fraction, the second fraction comprising;
(C) a combined monetary value of the transactions conducted with the merchant account during the third time period using at least one of the one or more new or newly active payment accounts, divided by (D) a total combined monetary value of the transactions conducted with the merchant account during the third time period, and iv. excluding the merchant account from the one r more suspect merchant accounts if the transactions conducted with the merchant account during the third time period account using at least one of the one or more new or newly active payment accounts have a combined monetary value that is less than a first threshold monetary value.
1 Assignment
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Accused Products
Abstract
A method and system for identifying patterns of payment account (e.g., credit card account) transactions that have a high probability of being part of a fraudulent scheme. Certain merchant accounts and payment accounts may have been obtained under false pretenses. For example, the payment accounts may have been obtained with the intention of never paying the bills with a true instrument. Merchant accounts may have been obtained in order to perform transactions either with payment accounts obtained under false pretenses or with stolen payment account information. To detect suspicious patterns of account activity, payment accounts that are new or exhibit a substantial increase in account activity are first identified. Merchant accounts having an unusually large number or value of transactions with such new or newly active payment accounts are also identified. Such merchants and payment accounts can then be subjected to further scrutiny by the affected institutions.
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Citations
27 Claims
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1. A method for detecting payment account fraud, comprising:
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a. selecting one or more new or newly active payment accounts from a set of payment accounts, the step of selecting the one or more new or newly active payment accounts comprising, for each payment account of the set of payment accounts, excluding the payment account from the one or more new or newly active payment accounts if a transaction activity increase factor of the payment account, from a first time period to a second time period, was less than a threshold increase factor, the second time period being subsequent to the first time period; and
b. selecting one or more suspect merchant accounts from a set of merchant accounts, the step of selecting the one or more suspect merchant accounts comprising at least one of the following steps for each merchant account of the set of merchant accounts;
i. excluding the merchant account from the one or more suspect merchant accounts if a number of the one or more new or newly active payment accounts used to conduct at least one transaction with the merchant account during a third time period is less than a first threshold number or greater than an upper limit, ii. excluding the merchant account from the one or more suspect merchant accounts if a first fraction is less than a first threshold fraction, the first fraction comprising;
(A) a number of transactions conducted with the merchant account during the third time period using at least one of the one or more new or newly active payment accounts, divided by (B) a total number of transactions conducted with the merchant account during the third time period,iii. excluding the merchant account from the one or more suspect merchant accounts if a second fraction is less than a second threshold fraction, the second fraction comprising;
(C) a combined monetary value of the transactions conducted with the merchant account during the third time period using at least one of the one or more new or newly active payment accounts, divided by (D) a total combined monetary value of the transactions conducted with the merchant account during the third time period, andiv. excluding the merchant account from the one r more suspect merchant accounts if the transactions conducted with the merchant account during the third time period account using at least one of the one or more new or newly active payment accounts have a combined monetary value that is less than a first threshold monetary value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for detecting payment account fraud, comprising a processing arrangement configured to perform the steps of:
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a. selecting one or more new or newly active payment accounts from a set of payment accounts, the step of selecting the one or more new or newly active payment accounts comprising, for each payment account of the set of payment accounts, excluding the payment account from the one or more new or newly active payment accounts if a transaction activity increase factor of the payment account, from a first time period to a second time period, was less than a threshold increase factor, the second time period being subsequent to the first time period; and
b. selecting one or more suspect merchant accounts from a set of merchant accounts, the step of selecting the one or more suspect merchant accounts comprising at least one of the following steps for each merchant account of the set of merchant accounts;
i. excluding the merchant account from the one or more suspect merchant accounts if a number of the one or more new or newly active payment accounts used to conduct at least one transaction with the merchant account during a third time period is less than a first threshold number or greater than an upper limit, ii. excluding the merchant account from the one or more suspect merchant accounts if a first fraction is less than a first threshold fraction, the first fraction comprising;
(A) a number of transactions conducted with the merchant account during the third time period using at least one of the one or more new or newly active payment accounts, divided by (B) a total number of transactions conducted with the merchant account during the third time period,iii. excluding the merchant account from the one or more suspect merchant accounts if a second fraction is less than a second threshold fraction, the second fraction comprising;
(C) a combined monetary value of the transactions conducted with the merchant account during the third time period using at least one of the one or more new or newly active payment accounts, divided by (D) a total combined monetary value of the transactions conducted with the merchant account during the third time period, andiv. excluding the merchant account from the one or more suspect merchant accounts if the transactions conducted with the merchant account during the third time period using at least one of the one or more new or newly active payment accounts have a combined monetary value that is less than a first threshold monetary value. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A computer-readable medium for detecting payment account fraud, the computer-readable medium having a set of instructions operable to direct a processor to perform the steps of:
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a. selecting one or more new or newly active payment accounts from a set of payment accounts, the step of selecting the one or more new or newly active payment accounts comprising, for each payment account of the set of payment accounts, excluding the payment account from the one or more new or newly active payment accounts if a transaction activity increase factor of the payment account, from a first time period to a second time period, was less than a threshold increase factor, the second time period being subsequent to the first time period; and
b. selecting one or more suspect merchant accounts from a set of merchant accounts, the step of selecting the one or more suspect merchant accounts comprising at least one of the following steps for each merchant account of the set of merchant accounts;
i. excluding the merchant account from the one or more suspect merchant accounts if a number of the one or more new or newly active payment accounts used to conduct at least one transaction with the merchant account during a third time period is less than a first threshold number or greater than an upper limit, ii. excluding the merchant account from the one or more suspect merchant accounts if a first fraction is less than a first threshold fraction, the first fraction comprising;
(A) a number of transactions conducted with the merchant account during the third time period using at least one of the one or more new or newly active payment accounts, divided by (B) a total number of transactions conducted with the merchant account during the third time period,iii. excluding the merchant account from the one or more suspect merchant accounts if a second fraction is less than a second threshold fraction, the second fraction comprising;
(C) a combined monetary value of the transactions conducted with the merchant account during the third time period using at least one of the one or more new or newly active payment accounts, divided by (D) a total combined monetary value of the transactions conducted with the merchant account during the third time period, andiv. excluding the merchant account from the one or more suspect merchant accounts if the transactions conducted with the merchant account during the third time period using at least one of the one or more new or newly active payment accounts have a combined monetary value that is less than a first threshold monetary value. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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Specification