Finnish Prime Minister's Office, Government's analysis, 2016, pp. 5. 3 Miroslav Mitrović, ,,Hibridno ratovanje i asimetrične bezbednosne pretnje", Vojno delo, Beograd, 5/2017. 4 Dejan M. Vučinić, "Psihološko ratovanje u prostoru društvenih informacionih medija -aspekt hibridnog ratovanja", Vojno delo, 7/2017, str. 333. У Х

Modern society is critically dependent on information as a strategic resource and information and communications technology, which carries out its transmission, processing and exchange. Information and communications technology has created a new environment, cyberspace, in which tensions, disagreements and incidents are becoming more frequent. In recent years, the mentioned area has increasingly appeared as a domain of conflict between the leading world and regional powers. The paper gives a brief description of the concept of operations in several domains and elements of the new concept of joint warfare of the US Armed Forces. The importance of cyberspace for the US has been pointed out with a review of organizational changes and the adoption of certain strategic and doctrinal documents. The paper presents certain events and activities in cyberspace, in recent years, between the United States on the one hand, and Iran and North Korea on the other. The United States Cyber Command (USCYBERCOM) was created in 2009. USCYBERCOM was elevated to the status of a full and independent unified command in May 2018. It indicates the importance of cyberspace for the Pentagon. In many ways, the separation of USCYBERCOM from Strategic Commands, which oversees strategic rejection, is a symbol of the change in the US attitude in cyberspace from "defensive" to "persistent engagement." The United States is still the strongest force in cyberspace and shows ambition to carry out cyber operations at all levels of command. It is unlikely that Iran will provoke the United States into a large-scale military conflict and wage a direct war in cyberspace. Iran has rapidly improved its ability to operate in cyberspace, and it is estimated that this trend will continue. The imbalance can prevent Iran from a direct military conflict with the United States and its allies. Greater action is expected with an asymmetric arsenal such as e.g. cyber attacks. Iranian and North Korean operations are similar in target selection, planning and exploitation of attacks. Both countries undertake different variants of phishing attacks in an attempt to deceive their victims into downloading malicious software by presenting it as a legitimate link or file. Whereas Iran usually had a motive only to cause disruption to the functioning of financial institutions, North Korean motive was both financial and political retaliation. Certain discovered incidents indicate that North Korea devotes much more time to conducting invasive surveillance before carrying out attacks. Numerous examples show that some activities have been prepared over the years and with the support of certain state bodies. Regardless of the fact that an investigation has been launched against certain groups, most often sponsored by states, it is unlikely that this will deter countries such as North Korea and Iran from giving up further activities and will pose an increasing threat to the US security.

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