Abstract: A tracking and security device that is self-contained, portable and easily secured to a shipping container. Since the unit can be easily attached and removed from a container and is relatively inexpensive to produce, the unit can be purchased and controlled by the owners of cargo, rather than the transportation service providers or owners of shipping containers. The device monitors and records positional information at a daily or other frequency dictated by the cargo owner, and reports this information as well as other events, such as suspicious entry into the container, over a satellite communication system or other wireless communication network. Access to status and/or position information is provided a secure fashion through Internet access to a centralized database.