A method includes: offering, by a circuit of the
mobile device, a mobile pay function, receiving, by the circuit, establishing, by the circuit via a near-field communication (NFC)
data connection, a
wireless communication between the
mobile device and a
payment card, receiving, by the circuit via the
wireless communication, information of a first financial account associated with the
payment card, and receiving, via the
wireless communication, an
authentication code from the
payment card. The method includes transmitting, a transaction request for a
payment transaction, receiving, by the circuit at, an
authentication decision from the computing
system based on the
authentication request, and enabling, by the circuit, (1) the
payment card for use with the mobile pay function of the
mobile device to conduct a transaction and (2) an additional financial operation on the mobile device.