| 摘要 |
A method is provided for blocking an unauthorized use of a payment instrument for a transaction. The method includes: establishing a transaction location (30) where the payment instrument is being used for the transaction; determining a location of a mobile station (20) served by a wireless telecommunications network (10); comparing the determined location of the mobile station (20) with the established transaction location (30); and, blocking completion of the transaction when the determined location of the mobile station (20) does not sufficiently match the established transaction location (30).
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