Abstract: Techniques for transferring data to a secure computing region that is isolated from any public networks is disclosed. In some embodiments, one or more artifacts for the secure computing region are packaged. As part of the packaging, one or more data packets and metadata for the one or more artifacts can be generated. The metadata indicates corresponding destination components for the one or more artifacts within the secure computing region. The data packet(s) are received and transmitted by a first data diode endpoint device. The first data diode endpoint device is configured to transmit data to the secure computing region via a second data diode endpoint device, the second data diode endpoint device being configured to restrict data from being transmitted to a destination outside of the secure computing region. The transmission of the one or more data packets may be monitored by the system.