Which system’s focus is on ensuring the security of various operational processes through risk mitigation?

The focus of a Safety Instrumented System (SIS) is primarily on ensuring the security and safety of various operational processes through risk mitigation. SIS is designed to monitor and control hazardous processes and to prevent accidents by implementing measures that reduce risk. It comprises hardware and software that systematically analyze risks within industrial settings, identifying potentially dangerous situations and allowing for automated responses to mitigate those risks effectively. The goal of an SIS is to safeguard human lives and the environment by ensuring that operational processes remain within safe limits, thus emphasizing operational safety and risk management.

In contrast, the other options do not primarily focus on the security of operational processes through risk mitigation. Information Sharing and Analysis Centers (ISACs) are more about sharing information regarding threats among organizations. Data Distribution Services (DDS) mainly handle real-time data exchanges and may not address risk mitigation directly. Facilities Management Systems focus on managing physical spaces rather than the risk associated with operational processes. Therefore, the SIS stands out as the correct choice for this question due to its explicit design and purpose in risk mitigation within operational safety.