Threat intelligence is the analysis of data using tools and techniques to generate meaningful information about existing or emerging threats targeting the organization that helps mitigate risks.

An advanced persistent threat (APT) is a sophisticated, sustained cyber attack in which an intruder establishes an undetected presence in a network in order to steal sensitive data over a prolonged period of time.

Originally developed by Lockheed Martin in 2011, the cyber kill chain outlines the various stages of several common cyber attacks and, by extension, the points at which the information security team can prevent, detect or intercept attackers.

"Adversarial Tactics, Techniques and Common Knowledge" is a framework, set of data matrices, and assessment tool developed by MITRE Corporation to help organizations understand their security readiness and uncover vulnerabilities in their defences.