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 Threat Analysis – The examination of threat sources against system vulnerabilities to determine the threats for a particular system in a particular operational environment. SOURCE: SP 800-27 Threat Assessment – See Threat Assessment. SOURCE: CNSSI-4009 Formal description and evaluation of threat to an information system. SOURCE: SP 800-53; SP 800-18 Process of formally evaluating the degree of threat to an information system or enterprise and describing the nature of the threat. SOURCE: CNSSI-4009; SP 800-53A Threat Monitoring – Analysis, assessment, and review of audit trails and other information collected for the purpose of searching out system events that may constitute violations of system security. SOURCE: CNSSI-4009 Threat Source – The intent and method targeted at the intentional exploitation of a vulnerability or a situation and method that may accidentally trigger a vulnerability. Synonymous with Threat Agent. SOURCE: FIPS 200; SP 800-53; SP 800-53A; SP 800-37 The intent and method targeted at the intentional exploitation of a vulnerability or a situation and method that may accidentally exploit a vulnerability. SOURCE: CNSSI-4009 Time Bomb – Resident computer program that triggers an unauthorized act at a predefined time. SOURCE: CNSSI-4009 Time-Compliance Date – Date by which a mandatory modification to a COMSEC end-item must be incorporated if the item is to remain approved for operational use. SOURCE: CNSSI-4009 Time-Dependent Password – Password that is valid only at a certain time of day or during a specified interval of time. SOURCE: CNSSI-4009 Pg 192
NIST IR 7298 Revision 1, Glossary of Key Information Security Terms TOE Security Functions (TSF) – Set consisting of all hardware, software, and firmware of the TOE that must be relied upon for the correct enforcement of the TOE Security Policy (TSP). SOURCE: CNSSI-4009 TOE Security Policy (TSP) – Set of rules that regulate how assets are managed, protected, and distributed within the TOE. SOURCE: CNSSI-4009 Token – Something that the claimant possesses and controls (typically a key or password) used to authenticate the claimant’s identity. SOURCE: SP 800-63 Something that the claimant possesses and controls (such as a key or password) that is used to authenticate a claim. See also cryptographic token. SOURCE: CNSSI-4009 Total Risk – The potential for the occurrence of an adverse event if no mitigating action is taken (i.e., the potential for any applicable threat to exploit a system vulnerability). SOURCE: SP 800-16 Tracking Cookie – A cookie placed on a user’s computer to track the user’s activity on different Web sites, creating a detailed profile of the user’s behavior. SOURCE: SP 800-83 Tradecraft Identity – An identity used for the purpose of work-related interactions that may or may not be synonymous with an individual’s true identity. SOURCE: CNSSI-4009 Traditional INFOSEC Program – Program in which NSA acts as the central procurement agency for the development and, in some cases, the production of INFOSEC items. This includes the Authorized Vendor Program. Modifications to the INFOSEC end-items used in products developed and/or produced under these programs must be approved by NSA. SOURCE: CNSSI-4009 Traffic Analysis – A form of passive attack in which an intruder observes information about calls (although not necessarily the contents of the messages) and makes inferences, e.g., from the source and destination numbers, or frequency and length of the messages. SOURCE: SP 800-24 Pg 193
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NISTIR 7298 Revision 1, Glossary of Key Information Security Terms

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