| 摘要 |
An antifraud credit card assembly includes a card member having first and second faces and a magnetic stripe on the first face and bearing information that is presentable to a sensing machine by a person seeking to consummate a transaction. The credit card assembly further has a movable device for mechanically changing the information provided by the magnetic stripe for selectively presenting to the machine any of a plurality of messages including a single legitimate message that allows consummation of the transaction and a plurality of illegitimate messages that deny such consummation. In one example, the movable device is a slide member, and in another example, the movable device is a rotatable disc. The magnetic stripe may be removable.
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