Patent attributes
Various embodiments are generally directed to techniques to enhance the security of physically delivered packages, items, or products, including postal mail. An article of manufacture associated with the enhanced security of one or more embodiments of the present disclosure can include: a container with a postage, a physical medium in the container, wherein the physical medium contains a sender message embodied on the surface of the physical medium, and wherein the sender message comprises: an unencrypted message, and two or more encrypted portions of a plurality of terms of service, where each of the two or more encrypted portions of the plurality of terms of service are associated with a distinct barcode corresponding to each of the two or more encrypted portions.