Abstract: The present disclosure generally relates to controlling operation of service devices.

Abstract: A method, performed by an initiator system, for securely initiating a checkout with an enrolled device includes the steps of receiving, from an untrusted device, a checkout request including a user identifier; determining whether the user identifier is associated with one of a plurality of enrolled devices in an enrolled device database; responsive to a determination that the user identifier is associated with an enrolled device, retrieving user data associated with the user identifier; sending, to the untrusted device, a request for instructions to perform a checkout with the enrolled device; receiving, from the untrusted device, instructions to perform the checkout with the enrolled device; generating a request to perform the checkout with the enrolled device; and initiating a checkout by sending, to a communication system, a request to initiate a checkout with the enrolled device over a secure communications channel.

Abstract: The present disclosure relates to payment technology. In one aspect, the present disclosure provides a method of processing a transaction. The method comprises receiving, from a user device, a transaction pairing request, the transaction pairing request comprising user account information of a user account. The method then transmits, to a receiving device, a plurality of transaction identifiers based on the transaction pairing request and receives, from the user device, a selection of one of the plurality of transaction identifiers. The method then associates the user account with a transaction record indicated by the selection of one of the plurality of transaction identifiers.