Santoshi MurikiAsk most plant managers what keeps them up at night: delayed suppliers, allergen changeovers, a line falling behind schedule. But do understand what you’re trying to protect, because it’s probably not what most security vendors think you are. That's the main issue: OT security is not just a smaller version of IT security. Scrutinise vendor and contractor access to the plant floor prior to purchasing a single piece of gear. They do, however, require plant managers and IT managers talking – perhaps for the first time in depth – to prioritise and decide how best to spend their money.