In this video, we provided a comprehensive explanation of OpenCTI, a cyber threat intelligence platform, to gather cyber threat intelligence and use it to build security controls. We also used TryHackMe Trooper to demonstrate the practical part. **** Receive Cyber Security Field, Certifications Notes and Special Training Videos ****** Writeup TryHackMe Trooper **** Store Patreon Instagram Google Profile LinkedIn [1]: [2]: Instagram Twitter Facebook ***** 0:00 - Introduction to Open CTI and Cyber Threat Intelligence (CTI) 0:42 - Understanding Threat Intelligence Platforms 1:50 - Sources of Threat Intelligence Data 4:19 - Deep Dive into Open CTI Components 8:14 - Threat Actors and Attack Patterns 11:19 - Exploring Arsenal and Tactics 14:00 - Case Study: USB Ferry Attack 17:05 - Investigation Using Open CTI 21:00- Threat Intelligence in Action 26:00 - Conclusion and Final Thoughts