As the subject of discussion of this paper, the author refers to combating terrorism, and its developing and metamorphosing phenomena. Illegal arms sales, smuggling, and the activities of organised crime, like drug trafficking and prostitution, can generate huge sums that are used to fund illegal terrorist organizations. Embezzlement, insider trading, corruption and computer fraud schemes also produce serious amounts of profit, which then needs to be turned into legal profits, through money laundering. Money laundering is inevitably linked with the finance of terrorism. In reference to the above, the author speaks of terrorist financing and related crimes, and the impact these crimes have on the integrity and stability of the financial sector and the state’s sovereignty, but mostly, this paper analyses sources of funding of terrorist organizations, and speaks with the special scope of ISIS as an imminent global threat. Bearing in mind the frightening statistics, the author raises the question of migration as an important vulnerability of combating terrorism and the desolation of human rights.