Abstract: Embodiments provide methods and systems for preventing a fraudulent payment transaction. The method performed by issuer system associated with payment account of user includes generating unique data for payment transaction of the user upon approval of payment transaction authorization request signal. The method includes facilitating encryption of the unique data based on encryption key and sending payment transaction authorization response signal to payment server associated with payment network. The payment transaction authorization response signal includes at least the encrypted unique data. The method includes processing the payment transaction upon receiving a notification of a successful validation of the payment transaction authorization response signal from payment server. The validation of the payment transaction authorization response signal is performed by payment server.

Abstract: Embodiments provide methods and systems for preventing a fraudulent payment transaction. The method performed by issuer system associated with payment account of user includes generating unique data for payment transaction of the user upon approval of payment transaction authorization request signal. The method includes facilitating encryption of the unique data based on encryption key and sending payment transaction authorization response signal to payment server associated with payment network. The payment transaction authorization response signal includes at least the encrypted unique data. The method includes processing the payment transaction upon receiving a notification of a successful validation of the payment transaction authorization response signal from payment server. The validation of the payment transaction authorization response signal is performed by payment server.

Abstract: The invention provides methods, point-of-sale (POS) terminals, and computer program products for delivering feedback through a POS terminal during a payment transaction involving a payment card. The invention comprises (i) detecting at the POS terminal an interface event comprising the payment card communicatively interfacing with the POS terminal, (ii) detecting at the POS terminal, a payment application stored within a memory of the payment card, (iii) identifying an audio file associated with the detected payment application, and (iv) initiating playback of the identified audio file through an audio playback device controlled by the POS terminal, wherein playback of the audio file is implemented between a playback commencement event detected by the POS terminal and a playback termination event detected by the POS terminal.

Abstract: Embodiments provide methods and systems for preventing a fraudulent payment transaction. The method performed by issuer system associated with payment account of user includes generating unique data for payment transaction of the user upon approval of payment transaction authorization request signal. The method includes facilitating encryption of the unique data based on encryption key and sending payment transaction authorization response signal to payment server associated with payment network. The payment transaction authorization response signal includes at least the encrypted unique data. The method includes processing the payment transaction upon receiving a notification of a successful validation of the payment transaction authorization response signal from payment server. The validation of the payment transaction authorization response signal is performed by payment server.