Which of the following is a requirement for methods used to deter malicious code?

The requirement that methods used to deter malicious code must include detection mechanisms is essential as it ensures the identification of potential threats before they can cause harm. Detection mechanisms allow organizations to recognize the presence of malicious code, enabling timely action to contain or eliminate the threat. This proactive stance is fundamental in the context of cybersecurity, as it helps in maintaining the integrity and confidentiality of critical infrastructure systems.

Employing detection mechanisms also aligns with the broader objectives of the NERC CIP standards, which emphasize risk management and the need for resilience against various cybersecurity threats. By having effective detection capabilities in place, organizations can respond appropriately to incidents, thus minimizing potential disruptions to operations.

While other methods, such as user training or automation, may support a comprehensive security strategy, the inclusion of detection mechanisms is a critical requirement to ensure effective threat mitigation against malicious code.