American Express Company
Merchant receipt of a first portion of an account number from an issuer and a second portion from a consumer

Abstract:

According to various embodiments, a merchant computing device is configured to obtain a first portion of a transaction account number from at least one transaction account issuer (TAI) computing device and a second portion of the transaction account number from a client device. The merchant computing device is further configured to transmit to the TAI computing device a request to authorize a transaction based at least in part on the first portion and the second portion of the transaction account number. The merchant computing device is further configured to obtain from the TAI computing device data indicating that the at least one TAI computing device authorized the transaction.