1. A system for monitoring fraud risk in financial transactions, the system comprising: a biometric switch; a plurality of distinct financial institutions, wherein each of the financial institutions maintains financial transaction information associated with individuals and biometric information associated with those individuals, including biometric information that has been marked as suspicious; one or more processors associated with the biometric switch and the plurality of financial institutions; one or more memories coupled with the one or more processors, the one or more memories storing instructions for: receiving financial transaction information and associated biometric information for each of a plurality of financial transactions conducted over time; determining, based on the financial transaction information and the biometric information for each of the plurality of financial transactions, that a pattern of transactions having biometric information corresponding to a specified individual are suspicious; marking, as suspicious, biometric information associated with the specified individual; receiving, at the biometric switch from a requesting party, biometric information for an individual transaction being conducted; identifying with the biometric switch which of the distinct financial institutions maintains biometric information corresponding to the received biometric information for the individual transaction; routing the received biometric information for the individual transaction from the biometric switch to the identified financial institution, the routine based on the identified financial institution maintaining the corresponding biometric information rather than an account used for the individual transaction; determining, at the identified financial institution, that the received biometric information for the individual transaction is associated with the specified individual, so that fraud risk monitoring includes a determination based on the biometric information and activity associated with the biometric information, separate from data associated with the account used for the transaction; issuing an alert to the requesting party when the biometric information associated with the specified individual is suspicious; and separately using the received biometric information to access accounts used in support of the individual transaction by an enrolled customer that has accounts associated with the biometric information.