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Cybersecurity: You Cannot Secure What You Cannot See

By David Zahn, PAS Inc. |

Follow this guidance to understand today’s cybersecurity risk landscape and take the necessary steps to create a sound industrial control system cybersecurity program, including the development of a comprehensive, in-depth cyber-asset inventory In industrial facilities, cyber incidents typically result from three basic scenarios: a malicious attack from an outside individual or group; a cyber incident that results from an engineer making a mistake that alters a control process or diminishes safe operations; or the work of a disgruntled employee or ex-employee. No matter which of these scenarios you believe is real or presents the most risk, companies must take steps to protect their industrial control systems (ICS) from cyber incidents. What should companies do and how far should they go to ensure that risk is managed to a sufficient level? This article addresses the fundamental elements that an ICS cybersecurity program must contain, and shares guidance on how to develop an in-depth cyber asset inventory.   Figure 1. Cybersecurity risks can arise from several scenarios — malicious attack, human errors and the intentional actions of disgruntled current or former employees[/caption] Cyber incidents A malicious attack…
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