TRANSACTION CONFIRMING SYSTEM

摘要

PURPOSE: To reduce the damage due to wrong use or the like with respect to a transaction card. CONSTITUTION: Transaction restrictions 30 stored in a terminal equipment 16 in a transaction confirmation system can be flexibly controlled to change the level of a risk in the terminal equipment 16 for the purpose of approximating it to a desired level. The terminal equipment 16 creates and stores a list of calculation numbers 44 and 46 considered invalid and asks an online request for confirmation. As the result, the transaction us confirmed through a central processing unit 12 by the response from itself or an issue source 14.