Since the emergence of modern democracies, two elements, among others, have posed a risk and threat to their stability. These risks are migratory flows and terrorism. After September 11, 2001, with the attacks against the economic and military symbols of the United States by Al Qaeda, the world became aware of the globalization of jihadist terrorism, which, as a good virus, knows how to use different fields to carry out its acts. One of these fields is immigration, which, since the emergence of jihadism in Egypt in the 1970s, has been used by the two major “multinationals” of jihadist terror, such as Al Qaeda and Daesh, and their franchises. At the same time, for some years now, a direct relationship between immigration and jihadist terrorism has been established, with the consequent message of hate. In this paper, we intend to reflect, the data of those convicted of jihadist terrorism in Spain, in the period 2015-2021, to establish a profile of those convicted according to sex, nationality, and age, in order to establish whether there is such a relationship and especially the trends in subsequent years.