What aspect of national security does the CNSS NOT directly oversee?

The correct answer highlights that the CNSS (Committee on National Security Systems) does not directly oversee private sector cybersecurity measures. The primary focus of the CNSS is on national security systems, which includes overseeing compliance with national standards and facilitating mitigation actions for systems that are deemed critical to national defense and security.

While the CNSS provides frameworks and guidance that might indirectly influence private sector practices, it does not have direct authority or oversight over private entities. Their role is more centered around governmental and national security measures, rather than regulating or enforcing cybersecurity practices in the private sector itself.

In contrast, the CNSS is actively involved in ensuring national security systems comply with established standards and employs mitigation actions to protect these systems. They also work closely with law enforcement agencies to ensure a coordinated approach to national security issues that intersect with cyber threats. Therefore, the role of CNSS is specifically tailored to government and national security systems rather than private sector cybersecurity.