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             This report by MWR InfoSecurity clearly describes several diffent types of threat intelligence, including strategic, tactical and operational variations. It also discusses the processes of requirements elicitation, collection, analysis, production and evaluation of threat intelligence. Also included are some quick wins and a maturity model for each of the types of threat intelligence defined by MWR InfoSecurity.
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+            <a href="https://www.us-cert.gov/tlp" target="_blank">Traffic Light Protocol</a>
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+            The Traffic Light Protocol (TLP) is a set of designations used to ensure that sensitive information is shared with the correct audience. It employs four colors to indicate different degrees of sensitivity and the corresponding sharing considerations to be applied by the recipient(s).
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             <a href="https://www.sans.org/reading-room/whitepapers/analyst/who-039-s-cyberthreat-intelligence-how-35767" target="_blank">Who's Using Cyberthreat Intelligence and How?</a>