Valid Date: The first date in which a card can be used for payment. The valid date is embossed on some credit and debit cards. Merchants cannot accept payments from cards which have a valid date in the future.
VisaNet: All of the combined networks and systems which provide and support authorization services, clearing and settlement and exception file services for Visa. One of the world’s first electronic payments processing tools.
Voice Response Unit (VRU): An automated system which provides authorization support for merchants with touch-tone telephones.