The loss of integrity or availability of a MAC II system is difficult to deal with and can only be tolerated for a short time. MAC 2 - Systems that handle information that is important to the support of deployed and contingency forces.Mission Assurance Category I systems require the most stringent protection measures. The loss of integrity or availability of a MAC I system is unacceptable and could include the immediate and sustained loss of mission effectiveness. MAC I - Systems that handle information that is vital to either the operational readiness or mission effectiveness of deployed and contingency forces in terms of both content and timeliness.The implementation guidelines include recommended administrative processes and span the devices' lifecycle.Īccording to DISA, the determining factor in developing the proper IA control sets for the systems, as well as the confidentiality of the information being passed through the system, is the Mission Assurance Level. The term was coined by the Defense Information Systems Agency (DISA), which creates configuration documents in support of the United States Department of Defense (DoD). This report presents the analyst with STIG classification and MAC levels in an easy to understand method.Ī Security Technical Implementation Guide (STIG) is a methodology for standardized secure installation and maintenance of computer software and hardware. As part of the proper Information Assurance (IA) controls, the configuration settings are classified using Mission Assurance Category (MAC) Levels.

The DoD uses Security Technical Implementation Guide (STIG) audits to analyze risk and identify configuration vulnerabilities.

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