System and method for secure data exchange between operational technology systems and external networks in air-gap architecture environment

Abstract

A system for secure data exchange between an operational technology network and an external information technology network separated by an air gap. The system includes a handheld computing device, a first central station coupled to the external information technology network and a receptacle for detachable coupling to the handheld computing device. The system also includes a second central station coupled to the operational technology network and a receptacle for detachable coupling to the handheld computing device. The system manages secure file transfers between the first central station and the second central station in which a file is uploaded to the detachable handheld device, and in which the handheld device is detachable and moveable from the first central station to the second central station or vice versa. Thereafter, the handheld device is attachable to the central station to which it has been moved to enable secure downloading of the file.

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