The collaboration between the National Security Agency (NSA) and other cybersecurity agencies worldwide has resulted in the publication of a comprehensive guide outlining six crucial principles for the safeguarding of operational technology (OT) environments. This guide, titled “Principles of Operational Technology Cyber Security,” serves as a valuable resource for security practitioners looking to enhance the security of critical infrastructure systems such as water, energy, and transportation.
One of the primary recommendations put forth in the guide is the prioritization of safety in OT environments. Unlike changes to corporate IT systems, alterations to critical infrastructure can have far-reaching consequences, including threats to human life and extensive damage to equipment and the environment. To mitigate these risks, OT managers are advised to consider the implementation of safety measures that enable system restarts and backups to minimize downtime. Emphasizing safety and reliability in all cybersecurity tasks is essential for ensuring the protection of communities and critical systems.
Another key principle highlighted in the guide is the importance of having a thorough understanding of the business operations that need to be safeguarded. By identifying essential components of the business and creating incident response playbooks and business continuity plans, organizations can enhance their cybersecurity posture and respond effectively to potential threats. Additionally, segregating OT data from corporate networks and monitoring access to sensitive information are critical measures for safeguarding valuable OT assets.
The guide also stresses the need to segment and segregate OT networks from other systems to reduce the risk of compromise. By isolating OT networks from the internet and IT networks, organizations can minimize the potential vulnerabilities introduced by external connections. Furthermore, securing the supply chain and maintaining awareness of all devices that interact with the OT network are crucial steps for mitigating risks associated with third-party vendors.
In light of the increasing cybersecurity threats facing critical infrastructure systems, the guide emphasizes the importance of having well-trained personnel and cultivating a strong cybersecurity culture within organizations. In the event of a cybersecurity incident, having skilled OT professionals on hand to respond is essential for mitigating risks and minimizing the impact of potential breaches. By fostering a diverse team with a range of expertise, organizations can enhance their cybersecurity capabilities and protect their critical systems.
Dave Luber, NSA Cybersecurity Director, underscored the significance of the principles outlined in the guide, stating that they are vital for strengthening cybersecurity posture and safeguarding critical systems. The collaboration between cybersecurity agencies from around the world highlights the global effort to enhance the security of operational technology environments and protect essential infrastructure from cyber threats. By adhering to the principles outlined in the guide, organizations can bolster their cybersecurity defenses and ensure the safety and reliability of critical systems.