TC 3-12.2.90 — Mission Thread Defense
TC 3-12.2.90 covers systems thinking, mission thread analysis, and cyberspace dependencies for mission assurance and protection planning.
- Publication number: TC 3-12.2.90
- Title: MISSION THREAD DEFENSE
- Date: 02/05/2024
- Proponent: T2COM
- Status: ACTIVE
View TC 3-12.2.90 on armypubs.army.mil
TC 3-12.2.90 presents a process for analyzing critical functions, including defining mission threads, describing system functioning, assessing target value, and refining analysis. It covers analytic methods, protection measures, cyberspace defense activities, and cyber protection team applications.
Applies to: This publication applies to the Active Army, Army National Guard/Army National Guard of the United States, and United States Army Reserve unless otherwise stated.
Topics covered
- Systems thinking
- Mission thread analysis
- Cyberspace dependencies
- Mission assurance
- Protection planning
- Cyber protection team operations
- Mission-relevant terrain in cyberspace
Questions and answers
How does mission thread analysis identify cyber vulnerabilities?
Mission thread analysis enables analysts to dissect the components of the larger system, revealing this type of interdependency and its associated vulnerabilities for follow-on mitigation measures. (paragraph 1-4)
When can mission thread analysis reduce operational risk?
When applied to functions critical to friendly forces, mission thread analysis allows organizations to reduce operational risk. (paragraph 1-10)
What should refinement of mission thread analysis provide?
The goal of refinement should be to provide the analysis necessary to meet operational requirements. (paragraph 2-23)
What must units do when vulnerabilities fall outside their authority or scope?
In these instances, the organization implements controls within their scope to mitigate the risk and may coordinate with other organizations for more comprehensive mitigation measures. (paragraph 2-26)
What does mission-relevant terrain in cyberspace include?
Mission relevant terrain in cyberspace includes all devices, internal and external links, operating systems, services, applications, ports, protocols, hardware, and software on servers, required to enable the function of a critical asset or the completion of a mission. (paragraph 1-12)