Abstract: This disclosure describes devices, systems, and methods related to security. An exemplary system includes a central computer, an object database including object data identifying a plurality of banned objects; a network interface configured to communicate with a control center; and a plurality of devices coupled to the central computer. A first device of the plurality of devices includes a camera, a network interface, and one or more non-lethal countermeasures. The central computer is configured to receive image data and compare the image data to the object data of the object database to identify a banned object of the banned objects. The central computer is configured to send a threat message to the control center and receive a control command from the control center. The central computer is configured to activate at least one of the non-lethal countermeasures based on the control command.