Paper Title
Cyber Threat Intelligence: A Survey on Progressive Techniques and Challenges

In today’s digital era, organizations and even individuals face enormous cyber-based attacks by persistent threat actors who try to bypass the security of networks, devices and manipulate sensitive information. Cyber Threat Intelligence (CTI) enables the cyber firms to gather the knowledge related to a cyber attack, its evidences, threat actors and their Tactics, Techniques and Procedures (TTP), Indicators of Compromise (IOC) to mitigate and further reduce the impact of those attacks. In the modern landscape of cyber threats, bridging the security gap is more than just securing data. Moreover, accessing the cyber content safely is the fundamental right of a human. This paper briefs about the state of the art of CTI and its various challenges that must be addressed to maintain sufficient early warning and threat detection systems. Keywords - Cyber attacks, Cyber Threat Intelligence (CTI), Indicators of Compromise (IOC), Tactics, Techniques and Procedures (TTP), Threat actors