Patent ID: 8380165

Claim:
One or more non-transitory computer-readable media having computer-executable instructions embodied thereon that, when executed, perform a method for identifying illegitimate use of a mobile device identifier in a communications network, the method comprising: tracking by a network computing device, a plurality of first call details that includes a call detail for each of a plurality of calls of a plurality of mobile devices, each of the plurality of mobile devices having a matching identifier; receiving from a first mobile device of the plurality of mobile devices, a set of call details collected by the first mobile device for calls of the first mobile device, wherein the plurality of calls tracked by the network computing device is inclusive of the calls of the first mobile device and a second mobile device both associated with the matching identifier, wherein one of the first mobile device or the second mobile device is a clone device; comparing the set of call details collected by the first mobile device against the first call details that includes the call details for the calls of the first mobile device and the second mobile device both associated with the matching identifier with one of the first mobile device or the second mobile device being a clone device; calculating a degree of mismatch between the set of call details and the first call details, the degree of mismatch being the result of an algorithm that includes a number of weighted factors associated with the comparing of the set of call details against the first call details, wherein the weighted factors includes a first factor that indicates a country from which a call originated or terminated and the first factor being weighted based on the identity of the country, wherein a first country is associated with a first weight that has a first effect on the degree of mismatch and a second country is associated with a second weight that has a second effect on the degree of mismatch; determining that the degree of mismatch is greater than a predetermined threshold; determining that the first mobile device is illegitimately using the identifier; and updating one or more of a profile, a key, or the identifier of a legitimate mobile device of the one or more mobile devices.