Authentication of transactions conducted using mobile devices

An apparatus comprising:

• an authentication server comprising one or more processors, and at least one memory device, the one or more processors to:
• form, by the authentication server, one or more registries comprising a first plurality of parameters pertaining to a plurality of devices utilized to conduct a set of transactions;
• compute, by the authentication server, a score based, at least in part, on the first plurality of parameters, wherein the first plurality of parameters include at least one of:
• a first subset of parameters representative of an occurrence of one or more past fraudulent transactions conducted via a first device of the plurality of devices,
• a second subset of parameters representative of an occurrence of one or more fraudulent uses of a second device of the plurality of devices, and/or
• a third subset of parameters representative of an occurrence of one or more fraudulent uses of at least one third device of the plurality of devices positioned in proximity with the second device;
• determine by the authentication server, that a potentially fraudulent transaction has been initiated at the first device based at least in part on the computed score;
• and
• decline, by the authentication server, the potentially fraudulent transaction.

An article comprising:

• a computer-readable medium, having instructions encoded thereon, which, when executed by a processor coupled to at least one memory device, direct the processor to:
• form, by an authentication server, one or more registries comprising a first plurality of parameters pertaining to a plurality of devices utilized to conduct a set of transactions;
• compute, by the authentication server, a score based, at least in part, on the first plurality of parameters, wherein the first plurality of parameters include at least one of:
• a first subset of parameters representative of an occurrence of one or more past fraudulent transactions conducted via a first device of the plurality of devices,
• a second subset of parameters representative of an occurrence of one or more fraudulent uses of a second device of the plurality of devices, and/or
• a third subset of parameters representative of an occurrence of one or more fraudulent uses of at least one third device of the plurality of devices positioned in proximity with the second device;
• determine by the authentication server, that a potentially fraudulent transaction has been initiated at the one first device based at least in part on the computed score;
• and
• decline, by the authentication server, the potentially fraudulent transaction.