1. A method comprising: receiving, by an apparatus, a request for transmitting structured data from a radio-frequency memory tag to a user device, wherein the user device has at least one internal memory; determining, by the apparatus, elements of the structured data stored in the radio-frequency memory tag; determining, by the apparatus, one or more privacy policies including one or more privacy levels corresponding to one or more of the elements; and applying, by the apparatus, the one or more privacy policies to the one or more of the elements, when initiating a transmission from the radio-frequency memory tag to the user device, by using one or more filters, one or more tokens, or a combination thereof, corresponding to the one or more privacy policies, wherein the applying of the one or more privacy policies comprises at least one of masking, encrypting, and removing one or more elements from the one or more of the elements before the transmission from the radio-frequency memory tag to the user device.