| 摘要 |
<p>A method is provided for protecting a payment instrument in non-face-to-face transactions. The payment instrument is issued by an issuing entity and associated with an authorized instrument holder. The authorized instrument holder is subject to authentication by trusted third party with whom the payment instrument holder has previously registered. The method includes: the authorized instrument holder communicating with the issuing entity to block, on a default basis, authorization of the payment instrument for non-face-to-face transactions unless authorized to unblock the payment instrument by the trusted third party; prior to a non-face-to-face transaction, the authorized instrument holder communicating with the trusted third party to subject him or herself to authentication and to request that the payment instrument be unblocked; and the trusted third party authenticating the authorized instrument holder, and if the authentication result is positive, communicating with the issuing entity to request unblocking of the payment instrument.</p> |
