The disclosed embodiments illustrate methods for displaying targeted content on a digital signage board (DSB). The method includes receiving encrypted profile information from each of a plurality of user-computing devices when the plurality of user-computing devices is in a proximity range of the DSB, wherein the DSB is associated with one or more products and/or services. The method further includes aggregating the encrypted profile information received from each of the plurality of user-computing devices to generate an aggregated encrypted profile. Further, the method includes transmitting the aggregated encrypted profile to a content server, wherein the content server decrypts the aggregated encrypted profile to select the targeted content from a content repository associated with the one or more products and/or services, wherein the targeted content is displayed on the DSB.