Devices, methods, systems, and computer-readable media for legacy device securitization within a microgrid system are described herein. One or more embodiments include a system having a microgrid network with at least one remote network connection to a non-local network device and the network having at least one local legacy device in communication with the non-local network device and a bump-in-the-wire (BITW) security device between the local legacy device and the at least one remote connection.