A Guide to Securing Industrial Control Networks: Integrating IT and OT Systems

Since the introduction of the computer and increasingly more so with the addition of the Internet, the threat of hackers and viruses attacking these systems has existed. This assault has been focused on the front-facing IT systems. However, with connectivity advancements related to plant floor networks, and as we become a globally connected enterprise, the security of the industrial control network must consider all levels of the system, including operational technology (OT). This article discusses the current industrial situation as well as the practices that should be adopted to provide the necessary security, policies that provide flexibility to the users so to ensure productivity, and further insight to developers who are building new security solutions and products.