Patent ID: 8359006

Claim:
One or more non-transitory computer-readable media having computer-executable instructions embodied thereon that, when executed, perform a method of detecting mobile-device-account fraud, the method comprising: receiving communication records describing a plurality of communication instances of a mobile device, wherein the communication records include a set of dialed numbers and a set of communication-instance locations; determining that a measure of dialed-number uncertainty among the set of dialed numbers exceeds an uncertainty threshold; determining that an average distance between locations of the set of communication-instance locations does not exceed a distance threshold; determining that a quantity of incoming calls received by the mobile device is less than an incoming-call threshold; prompting a fraud detection response that includes clustering locations of the set of communication-instance locations with other locations of a set of mobile devices that share a geographical relationship; and determining an approximate centroid of the locations that are clustered, wherein the centroid is usable to suggest a call-shop location.