A seaport is vital Critical National Infrastructure (CNI) required to maintain competitiveness in a global, supply-chain driven marketplace. Seaport automation can increase productivity and reduce operating costs but also increases an organizations's cyber risk. Seaports choosing to automate must adopt inherently insecure industrial control technology while greatly expanding its technology footprint and attack surface. Business and technology choices made early-on in the automation planning process, such as OT governance and network design, are crucial to the successful and secure delivery of automation.