Security Incident

A security event which may compromise an asset and require action.

Source: API RP 781 Security Plan Methodology for the Oil and Natural Gas Industries.1st Ed. September 2016. Global Standards

Security Incident

An occurrence that actually or potentially results in adverse consequences to (adverse effects on) (poses a threat to) an information system or the information that the system processes, stores, or transmits and that may require a response action to mitigate the consequences.

Extended Definition: An occurrence that constitutes a violation or imminent threat of violation of security policies, security procedures, or acceptable use policies.

Adapted from: CNSSI 4009, FIPS 200, NIST SP 800-53 Rev 4, ISSG.

Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies ( as of 11 November 2015, Global Standards


Security Incident

A security-related occurrence, threat, or action that has led to or could potentially lead to adversely affecting people, the environment, assets, and economic stability.

Source: Canadian Standards Association, Z246.1-09, Security management for petroleum and natural gas industry systems, August 2009, Regional Standards


Security Incident

Adverse event in a system or network or the threat of the occurrence of such an event [10].

  • NOTE: The term “near miss” is sometimes used to describe an event that could have been an incident under slightly different circumstances.

Source: ANSI/ISA–99.00.01–2007, Security for Industrial Automation and Control Systems, Part 1: Terminology, Concepts, and Models, 29 October 2007. National Standard

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