Matt has subscribed to a commercial threat intelligence feed that is only given to subscribers who have been vetted and who pay a monthly fee. Which of the following industry term is used to refer to this type of threat intelligence?

Proprietary, or closed threat, intelligence is threat intelligence that is not openly available. OSINT, or open source threat intelligence, is freely available. ELINT is a military term for electronic and signals intelligence. Corporate threat intelligence was made up for this question.