The paper aims to shed light the would illustrate how much Iran has developed and promoted its cyber-war capabilities. The study has reached numerous findings, most notably the fact that soon after the provision of Internet in the capital Tehran in 1995, major Iranian universities started to play a key role in launching the nation’s cyber security policy; teaching computer science students the basics of hacking, cyber security, and information security, which stimulated the Iranian National Security Council to form various Iranian institutions and external electronic agencies to act as Iranian offensive arms. Although Iran’s cyber capabilities are weaker than those of Russia and China, it has become clear that Iran is an emerging cyber power that poses a real major threat to the United States and its allies. Iran’s cyber-attacks primarily targeted Saudi Arabia, then they moved to Israel, and after that to the United States, Britain, Canada, and other Western countries. Later, Iran was subjected to fierce cyber-attacks by the United States and its allies, estimated at about 33 million attacks in 2019 alone. However, due to conflict of wills between Iran and the United States of America in the Persian Gulf and the Strait of Hormuz on the one hand, and between Iran and Israel on the other – on many regional files, most notably Iranian support for groups Israel classifies as terrorist organizations – the study suggests that cyber warfare is most likely to escalate between these parties within the coming period, in light of the low strategic costs of such confrontations.