CAP study materials
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CAP (The American College Credentials) key terms

CAP · Get comfortable with the vocabulary.

Risk Management Framework (RMF)

A structured six-step process for selecting, implementing, assessing, authorizing, and continuously monitoring security and privacy controls so organizations manage information system risk.

Related: Security control baseline, Authorization decision, Continuous monitoring
System boundary

The set of components, users, processes, and data that make up an information system and are subject to the same authorization and risk management decisions.

Related: Authorization boundary, Common control
Authorization boundary

The logical and physical perimeter for which an authorizing official accepts risk; it may include interconnected systems and shared services beyond the system boundary.

Related: System boundary, Authorizing official (AO)
Risk executive

A senior official or group that establishes organization-wide risk management strategy, risk tolerance, and priorities to guide authorizing officials and system owners.

Related: Authorizing official (AO), Risk acceptance
NIST SP 800-37

A NIST guide describing the RMF steps and tasks for managing risk to information systems throughout their life cycle, including authorization and continuous monitoring.

Related: Risk Management Framework (RMF), Authorization package
Categorization

The process of determining impact levels for information types and the system, using FIPS 199 criteria and considering harm to operations, assets, individuals, and other organizations.

Related: FIPS 199, Security category
FIPS 199

A federal standard that requires categorizing information and information systems by the potential impact of losing confidentiality, integrity, or availability, using low, moderate, or high labels.

Related: Categorization, Security category, Impact value
Security category

A label indicating the potential adverse impact of a confidentiality, integrity, or availability breach on organizational operations, assets, individuals, or other organizations.

Related: Impact value, High-water mark
Impact value

The assessed severity of harm from a security event, assigned separately to confidentiality, integrity, and availability and used to derive the system security category.

Related: Security category, FIPS 199
High-water mark

A categorization rule that sets a system's overall impact level to the highest value assigned to any of its information types or security objectives.

Related: Security category, Impact value
Information type

A category of information with a common purpose and sensitivity that is evaluated for confidentiality, integrity, and availability impact during system categorization.

Related: Categorization, Security category
FIPS 200

A federal standard that specifies minimum security requirements for information systems based on their FIPS 199 security category and directs selection of controls from a catalog.

Related: Security control baseline, FIPS 199
Security control baseline

A starting set of security controls selected for a system from a catalog based on its security category and applicable legal, regulatory, or organizational requirements.

Related: Control tailoring, Overlay, FIPS 200
Control tailoring

The process of reviewing a baseline and adding, removing, or modifying controls so the chosen set fits the system's mission, environment, and risk.

Related: Security control baseline, Overlay
Overlay

A reusable package of control additions, removals, and supplemental guidance for a specific community, technology, or mission, applied on top of a baseline.

Related: Control tailoring, Security control baseline
Control enhancement

A supplemental requirement attached to a base security control that adds strength or coverage when risk and system needs justify the added protection.

Related: Security control baseline, Control tailoring
NIST SP 800-53

A catalog of security and privacy controls and assessment procedures that organizations use to select, implement, and assess safeguards for information systems.

Related: Security control baseline, Security control assessment
Common control

A security control implemented by one provider and inherited by multiple information systems, with responsibility and evidence documented outside each individual system.

Related: Hybrid control, System-specific control
Hybrid control

A control for which some aspects are provided commonly and other aspects are implemented by the system owner, requiring coordinated responsibility and supporting evidence.

Related: Common control, System-specific control
System-specific control

A control selected and implemented within a particular information system's boundary because it cannot be effectively provided as a shared or inherited control.

Related: Common control, Hybrid control
Security control implementation

The act of deploying and configuring selected controls, then documenting how they operate and meet their stated requirements in the system environment.

Related: Security control baseline, Compensating control
Compensating control

An alternative safeguard applied when a required control cannot be implemented directly, providing protection equivalent to or stronger than the original requirement.

Related: Security control implementation, Control tailoring
Security assessment plan (SAP)

A document that defines the scope, methods, procedures, schedule, and team for assessing whether selected controls are implemented correctly and operating effectively.

Related: Security control assessment, Assessment method
Security Assessment Report (SAR)

A document that records assessment findings, evidence, control effectiveness determinations, and risk information to support authorization and remediation decisions.

Related: Security control assessment, Authorization package
Assessment method

A technique used to gather evidence about a control, commonly by examining documents or settings, interviewing people, or testing behavior and results.

Related: Assessment procedure, Security control assessment
Assessment procedure

Detailed instructions for collecting evidence and judging whether a specific control satisfies its requirement, including objects to examine, people to interview, or functions to test.

Related: Assessment method, Security assessment plan (SAP)
Control effectiveness

The degree to which an implemented control operates as intended and produces the required outcome, considering its design, implementation, and continued operation.

Related: Security control assessment, Security Assessment Report (SAR)
Security control assessment

The testing and evaluation of controls to determine whether they are implemented correctly, operating as intended, and producing the desired security outcome.

Related: Control effectiveness, Security assessment plan (SAP), Security Assessment Report (SAR)
Authorization package

The set of evidence and analysis an authorizing official reviews, typically including categorization, control implementation details, assessment results, and remediation plans.

Related: Security Assessment Report (SAR), Plan of Action and Milestones (POA&M), Authorization decision
Authorization decision

A formal, documented judgment by an authorizing official that a system may operate, including accepted risk and any conditions or restrictions.

Related: Authorization to operate (ATO), Risk acceptance, Authorizing official (AO)
Authorization to operate (ATO)

A time-limited approval that lets an information system operate after the authorizing official accepts its residual risk and any stated conditions.

Related: Authorization decision, Residual risk
Authorizing official (AO)

A senior organizational official with the authority to accept risk and decide whether an information system may begin or continue operating.

Related: Risk acceptance, Authorization decision
Risk acceptance

A documented decision to tolerate a specific remaining risk, including the rationale, decision maker, and any conditions or monitoring requirements.

Related: Residual risk, Authorizing official (AO)
Residual risk

The risk that remains after security controls are implemented and assessed, which an authorizing official may choose to accept, mitigate, or avoid.

Related: Risk acceptance, Continuous monitoring
Plan of Action and Milestones (POA&M)

A management record of known security weaknesses, planned corrective actions, assigned responsibilities, resources, and target completion dates used to track remediation.

Related: Security Assessment Report (SAR), Continuous monitoring
Continuous monitoring

An ongoing process for observing security state, assessing controls, and responding to changes so risk decisions stay current throughout system operation.

Related: Information security continuous monitoring (ISCM), Plan of Action and Milestones (POA&M)
Information security continuous monitoring (ISCM)

An organization-wide strategy for continuously collecting and analyzing security information about assets, vulnerabilities, threats, and controls to support risk management decisions.

Related: Continuous monitoring, Configuration management
Configuration management

A disciplined process for identifying, controlling, and auditing changes to system components and settings so the approved security posture remains known.

Related: Change management, Continuous monitoring
Change management

A process for requesting, reviewing, approving, and recording changes before they occur, including analysis of their security and operational effects.

Related: Configuration management, Continuous monitoring