Industrial Internet of Things (IIoT) is an intricately intertwined and negotiated merger of IT and operational technology (OT) An alarming 59% of companies are willing to “tolerate medium-to-high risk in relation to IoT security,” according to Forrester. There are some promising ideas one can adapt from decades of IT experience to provide new levels of IIoT security while honoring the specific needs of OT. Separation of endpoint networks and micro-segmentation could be valuable security additions to the OT half of the world’s industrial economy.”]