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Protecting Against Mis-Set Dates in an Off-Line Terminal

IP.com Disclosure Number: IPCOM000047545D
Original Publication Date: 1983-Dec-01
Included in the Prior Art Database: 2005-Feb-07

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Svigals, J [+details]


The date in a point-of-sale terminal often controls the amount of credit that is available to a credit card holder by determining the start of a new time period having a new line of credit. If a merchant mistakenly (or fraudulently) advances the date in a terminal, a transaction may be authorized that otherwise would have been rejected. Loss control limits that are normally implemented for the protection of the bank issuing the credit card could thus be circumvented. If the card is stolen or otherwise being fraudulently used, the card issuer would suffer excessive losses.