© 2019 IEEE.With the widespread use of the internet, end-users spend most of their lives interacting with virtual environments. Malicious attackers use cyber world in line with their individual, political and economic ideas, beliefs, ambitions, goals, interests, expectations or missions in a positive or negative way according to the aims of their groups, societies or nations. The most important threat directly affecting individuals, societies or nations and ultimately our world is cyber terror. Terrorists make propaganda in virtual environments, gather fans or create sympathizers, attack critical infrastructures, damage personal and institutional portfolio of information, undermine trust in electronic environments and create infrastructure in chaos. Their greatest ambition is threatening the systems. In other words, they are struggling with national security. In this study; the concept of cyber terrorism, its scope, targets, attack approaches and impacts have been researched. Strategies and policies related to cyber terrorism have been analyzed and the findings obtained from this research have been evaluated. As a result, some recommendations have been made to fight cyber terrorism.