Focus on Operation Technology (OT) is increasing for two reasons: firstly, governments worldwide have, or are threatening to, intervene in cases of compromise of OT infrastructure and secondly, many companies are now investing in IoT (Internet of Things) technology to support their business operations to take advantage of escalating functionality and decreasing cost. Now is the time to properly plan OT and IoT environments to ensure they are adequate to the task, appropriately protected and adopt current control mechanisms.