Which aspect of the ISA 62443 model is focused on operational technology management?

The focus on operational technology management within the ISA/IEC 62443 model is found specifically at Level 3. This level deals with the management of operational technologies, emphasizing the need for effective governance, risk management, and oversight of industrial automation and control systems (IACS).

Level 3 centers on processes that include the implementation of policies, procedures, and practices necessary to manage operational technology effectively. This encompasses the need for continuous monitoring and assessment of operational technology systems to ensure they remain secure and operational.

Furthermore, Level 3's focus is on integrating security principles into daily operations, ensuring that cybersecurity measures are not only in place but are also managed and improved upon regularly to adapt to evolving threats and vulnerabilities specific to operational technology.

In contrast, other levels within the ISA/IEC 62443 framework address different aspects of cybersecurity. For instance, Level 1 is focused on the physical components of the system; Level 2 is about the communication aspects and data flows; and Level 4 emphasizes enterprise-level security and strategic considerations. Therefore, Level 3 is clearly positioned as the level dedicated to the management and operational aspects of technology in the context of IACS.