Which requirements should a cleared defense contractor refer to in relation to Insider Threat?

A cleared defense contractor should refer to the National Industrial Security Program Operating Manual (NISPOM) in relation to Insider Threat requirements. The NISPOM establishes the standards and requirements for safeguarding classified information within the defense contracting community. It specifically addresses the responsibilities of cleared contractors in preventing and identifying insider threats, including criteria for security training, reporting suspicious activities, and implementing access controls.

NISPOM outlines how to create a secure environment where potential threats can be mitigated through proper monitoring and proactive measures. This is crucial for contractors who handle sensitive information and ensures that their operations align with government security protocols.

The other options are focused on different fields: FISMA (Federal Information Security Management Act) pertains to information security for federal agencies and their contractors, HIPAA (Health Insurance Portability and Accountability Act) relates to the protection of health information, and SOX (Sarbanes-Oxley Act) focuses on corporate financial governance. While these regulations have their own importance, they do not specifically address the insider threat requirements relevant to cleared defense contractors, making NISPOM the most appropriate reference for this context.