Systems and methods of a security architecture for a connected aircraft are disclosed. In at least one embodiment, an avionics server comprises a plurality of device ports, wherein each of the plurality of device ports is coupled to a respective one of a plurality of device network interface cards and dedicated to a respective one of a plurality of avionics domains which corresponds to the respective device network interface card. Further, at least one processing device is configured to identify one or more signals from a respective user received at one or more of the plurality of device ports and to verify whether the user has access to the respective avionics domains that are dedicated to the one or more device ports over which the one or more signals are received.