What is not an acceptable method to mitigate software vulnerabilities according to CIP-010?

Denying all network access is not considered an acceptable method to mitigate software vulnerabilities according to CIP-010. This standard emphasizes the need for appropriate security measures that allow systems to remain operational while managing vulnerabilities. Denying all network access would render systems inoperable, which defeats the purpose of maintaining critical infrastructure functionality and reliability.

In contrast, other methods such as utilizing a live operating system from read-only media, implementing system hardening techniques, and applying regular security patches are all proactive strategies that help manage and mitigate vulnerabilities effectively without compromising the operational capabilities of the systems. These approaches are encouraged as they enhance security while ensuring that systems remain accessible and functional for their intended use.