NIST 800-172 Control Explorer

Employ dual authorization to execute critical or sensitive system and organizational
operations.

Restrict access to systems and system components to only those information resources that are owned, provisioned, or issued by the organization.

Employ [Assignment: organization-defined secure information transfer solutions] to control information flows between security domains on connected systems.

Provide awareness training [Assignment: organization-defined frequency] focused on recognizing and responding to threats from social engineering, advanced persistent threat actors, breaches, and suspicious behaviors; update the training [Assignment: organization-defined frequency] or when there are significant changes to the threat.

Include practical exercises in awareness training for [Assignment: organization-defined roles] that are aligned with current threat scenarios and provide feedback to individuals involved in the training and their supervisors.

Establish and maintain an authoritative source and repository to provide a trusted source and accountability for approved and implemented system components.

Employ automated mechanisms to detect misconfigured or unauthorized system components; after detection, [Selection (one or more): remove the components; place the components in a quarantine or remediation network] to facilitate patching, re-configuration, or other mitigations.

Employ automated discovery and management tools to maintain an up-to-date, complete, accurate, and readily available inventory of system components.

Identify and authenticate [Assignment: organization-defined systems and system components] before establishing a network connection using bidirectional authentication that is cryptographically based and replay resistant.

Employ automated mechanisms for the generation, protection, rotation, and management of passwords for systems and system components that do not support multifactor authentication or complex account management.

Employ automated or manual/procedural mechanisms to prohibit system components from connecting to organizational systems unless the components are known, authenticated, in a properly configured state, or in a trust profile.

Establish and maintain a security operations center capability that operates [Assignment: organization-defined time period].

Establish and maintain a cyber incident response team that can be deployed by the organization within [Assignment: organization-defined time period].

Conduct [Assignment: organization-defined enhanced personnel screening] for individuals and reassess individual positions and access to CUI [Assignment: organization-defined frequency].

Ensure that organizational systems are protected if adverse information develops or is obtained about individuals with access to CUI.

Employ [Assignment: organization-defined sources of threat intelligence] as part of a risk assessment to guide and inform the development of organizational systems, security architectures, selection of security solutions, monitoring, threat hunting, and response and recovery activities.

Conduct cyber threat hunting activities [Selection (one or more): [Assignment: organization-defined frequency]; [Assignment: organization-defined event]] to search for indicators of compromise in [Assignment: organization-defined systems] and detect, track, and disrupt threats that evade existing controls.

Employ advanced automation and analytics capabilities in support of analysts to predict and identify risks to organizations, systems, and system components.

Document or reference in the system security plan the security solution selected, the rationale for the security solution, and the risk determination.

Assess the effectiveness of security solutions [Assignment: organization-defined frequency] to address anticipated risk to organizational systems and the organization based on current and accumulated threat intelligence.

Assess, respond to, and monitor supply chain risks associated with organizational systems and system components.

Develop a plan for managing supply chain risks associated with organizational systems and system components; update the plan [Assignment: organization-defined frequency].

Conduct penetration testing [Assignment: organization-defined frequency], leveraging automated scanning tools and ad hoc tests using subject matter experts.

Create diversity in [Assignment: organization-defined system components] to reduce the extent of malicious code propagation.

Implement the following changes to organizational systems and system components to introduce a degree of unpredictability into operations: [Assignment: organization-defined changes and frequency of changes by system and system component].

Employ [Assignment: organization-defined technical and procedural means] to confuse and mislead adversaries.

Employ [Selection: (one or more): [Assignment: organization-defined physical isolation techniques]; [Assignment: organization-defined logical isolation techniques]] in organizational systems and system components.

Distribute and relocate the following system functions or resources [Assignment: organization-defined frequency]: [Assignment: organization-defined system functions or resources].

Verify the integrity of [Assignment: organization-defined security critical or essential software] using root of trust mechanisms or cryptographic signatures.

Monitor organizational systems and system components on an ongoing basis for anomalous or suspicious behavior.

Ensure that [Assignment: organization-defined systems and system components] are included in the scope of the specified enhanced security requirements or are segregated in purpose-specific networks.

Refresh [Assignment: organization-defined systems and system components] from a known, trusted state [Assignment: organization-defined frequency].

Conduct reviews of persistent organizational storage locations [Assignment: organization-defined frequency] and remove CUI that is no longer needed.

Use threat indicator information and effective mitigations obtained from [Assignment: organization-defined external organizations] to guide and inform intrusion detection and threat hunting.

Verify the correctness of [Assignment: organization-defined security critical or essential software, firmware, and hardware components] using [Assignment: organization-defined verification methods or techniques].