NISTIR 7298 Revision 1, Glossary of Key Information Security Terms

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NIST IR 7298 Revision 1, Glossary of Key Information Security Terms Security Policy – A set of criteria for the provision of security services. It defines and constrains the activities of a data processing facility in order to maintain a condition of security for systems and data. SOURCE: FIPS 188 A set of criteria for the provision of security services. SOURCE: SP 800-37; SP 800-53; CNSSI-4009 Security Posture – The security status of an enterprise’s networks, information, and systems based on IA resources (e.g., people, hardware, software, policies) and capabilities in place to manage the defense of the enterprise and to react as the situation changes. SOURCE: CNSSI-4009 Security Program Plan – Formal document that provides an overview of the security requirements for an organization-wide information security program and describes the program management security controls and common security controls in place or planned for meeting those requirements. SOURCE: CNSSI-4009 Security Range – Highest and lowest security levels that are permitted in or on an information system, system component, subsystem, or network. SOURCE: CNSSI-4009 Security-Relevant Change – Any change to a system’s configuration, environment, information content, functionality, or users which has the potential to change the risk imposed upon its continued operations. SOURCE: CNSSI-4009 Security-Relevant Event – An occurrence (e.g., an auditable event or flag) considered to have potential security implications to the system or its environment that may require further action (noting, investigating, or reacting). SOURCE: CNSSI-4009 Security-Relevant Information – Any information within the information system that can potentially impact the operation of security functions in a manner that could result in failure to enforce the system security policy or maintain isolation of code and data. SOURCE: SP 800-53 Pg 174
NIST IR 7298 Revision 1, Glossary of Key Information Security Terms Security Requirements – Requirements – Requirements levied on an information system that are derived from applicable laws, Executive Orders, directives, policies, standards, instructions, regulations, or procedures, or organizational mission/business case needs to ensure the confidentiality, integrity, and availability of the information being processed, stored, or transmitted. SOURCE: FIPS 200; SP 800-53; SP 800-53A; SP 800-37; CNSSI- 4009 Security Requirements Baseline – Description of the minimum requirements necessary for an information system to maintain an acceptable level of risk. SOURCE: CNSSI-4009 Security Requirements Traceability Matrix (SRTM) – Matrix that captures all security requirements linked to potential risks and addresses all applicable C&A requirements. It is, therefore, a correlation statement of a system’s security features and compliance methods for each security requirement. SOURCE: CNSSI-4009 Security Safeguards – Protective measures and controls prescribed to meet the security requirements specified for an information system. Safeguards may include security features, management constraints, personnel security, and security of physical structures, areas, and devices. SOURCE: CNSSI-4009 Security Service – A capability that supports one, or many, of the security goals. Examples of security services are key management, access control, and authentication. SOURCE: SP 800-27 A capability that supports one, or more, of the security requirements (Confidentiality, Integrity, Availability). Examples of security services are key management, access control, and authentication. SOURCE: CNSSI-4009 Security Specification – Detailed description of the safeguards required to protect an information system. SOURCE: CNSSI-4009 Security Strength – A measure of the computational complexity associated with recovering certain secret and/or security-critical information concerning a given cryptographic algorithm from known data (e.g. plaintext/ciphertext pairs for a given encryption algorithm). SOURCE: SP 800-108 Pg 175
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NISTIR 7298 Revision 1, Glossary of Key Information Security Terms

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