Positive pay is a process used to combat cheque fraud. With this service a company transmits a file of issued cheque information to the bank soon after its issuance to the payee. The bank matches cheque serial numbers and amounts of cheques presented for payments against the issue file and pays only those cheques that match. Exceptions are conveyed to the company for disposition. Some positive pay services match against the payee field as well as the serial number and amount, in an effort to detect altered payees.