Persons, facilities, materials, information, and activities are categories of ______.

The term that encompasses persons, facilities, materials, information, and activities is "assets." In the context of risk management for DoD security programs, assets represent valuable resources that the organization needs to protect. Understanding the nature and types of assets is crucial for identifying potential risks and determining how to safeguard these resources effectively.

Assets can be tangible, such as physical facilities and materials, or intangible, like information or intellectual property. By categorizing these elements as assets, organizations can prioritize their security measures, conduct risk assessments, and recognize how vulnerabilities and threats may impact the protection of these assets. This understanding lays the foundation for developing appropriate countermeasures to mitigate risks associated with each category.