Abstract: Monitoring a non-account holder seeking to perform a transaction with a financial institution includes receiving first transaction information including an identity of a non-account holder and a disposition of a first transaction between a first financial institution and the non-account holder. The first transaction information is stored in a transaction history data store. A portion of the first transaction information in the transaction history data store is later accessed when determining whether to perform a subsequent transaction with the non-account holder.

Abstract: A coin handling apparatus contains a standard reference coin and a coin validation circuit that compares an inserted coin or slug with the reference coin as it passes through a chute toward a coin gate. The coin gate deflects the coin into a first path if the inserted coin is undersized and otherwise into a second path. The validation circuit produces a "valid coin" signal that indicates a match between the inserted coin and the reference coin, a "coin present" signal if any coin is being compared with the reference coin, and a photodetector output signal, all of which are applied as inputs to a surveillance circuit that analyzes those three signals and generates an output indicative of whether the inserted coin is being "strung", an output indicative of whether the inserted coin is a slug, and an "alert" signal that indicates whether either the coin is being strung or the inserted coin is a slug.