The present invention provides a system, method and apparatus that includes a user device having a magnetic field generator disposed within a substrate that is normally inactive, an initiator mounted on the substrate, a memory disposed within the substrate and a processor disposed within the substrate that is communicably coupled to the magnetic field generator, the initiator and the memory. The processor is operable to process information received from the initiator, generate a time varying code in response to the received information and activate the magnetic field generator. A power source is also disposed within the substrate. The magnetic field generator can create a spatial magnetic signal using a magnetic stripe and one or more induction coils, or create a time-varying magnetic signal for emulating data obtained from swiping a traditional magnetic stripe card through a magnetic card reader.