Method and device for preventing unauthorized use of credit cards
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 1, 2000
Grant Date -
N/A
app pub date -
Feb 24, 1998
filing date -
Feb 24, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An authorization card, such as a credit card, has a security feature. The authorization card generally has two operational states, a disabled state and an enable state. In the disabled state, which is the default mode of operation, access to confidential information stored on the card is denied. The card remains in the disabled state until a PIN code is entered on a keypad provided on the card. Once the card is enabled, access to the confidential information is permitted for a predetermined period of time, after which the card reverts back to the default disabled state. The security feature is implemented on a magnetic card, an electronic smart card, and passive electronic card.
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