1. A computer-implemented method for detecting a test event involving a financial transaction device at an Internet website of a merchant, the test event being a likely fraudulent use of the financial transaction device, the merchant having a merchant profile, the merchant profile associated with a set of variables, the method comprising: receiving, from a first computing device controlling one or more financial services and over one or more financial channels, data associated with a transaction involving the financial transaction device, the transaction occurring at the Internet website of the merchant; retrieving, from a merchant profile store, the merchant profile for the merchant; retrieving, from a card profile store, a financial transaction device profile for the financial transaction device; determining whether the transaction is a test event by: calculating a score using the received data and the set of variables; and comparing the score to a threshold value; attaching a merchant probe flag to the merchant profile if the score exceeds the threshold value, the merchant probe flag indicating a likelihood that a test event has occurred at the Internet website of the merchant; and attaching, to the financial transaction profile, a probe flag associated with the financial transaction device to indicate that the financial transaction device has been involved in a test event in response to the merchant probe flag being attached to the merchant profile, the attaching of the probe flag causing a probe risk to be associated with the financial transaction device specifying a period of time that the financial transaction device is considered to remain at risk after the test event; receiving, from a second computing device controlling one or more financial services and over one or more financial channels, data associated with a second transaction involving the financial transaction device having the probe flag; retrieving, from the card profile store and in response to receiving the data associated with the second transaction, the financial transaction device profile for the financial transaction device; subjecting, in response to the financial transaction device profile for the financial transaction device having a probe flag, the second transaction and the financial transaction device to a specialized fraud scoring model, the specialized fraud scoring model separate from the fraud model applied to financial transactions associated with financial transaction devices that do not have the probe flag; blocking the second transaction from completing based on a fraud score using the specialized fraud scoring model satisfying a threshold value, and wherein the receiving, the calculating, the comparing, the attaching, the subjecting, and the blocking are performed by at least one processor.