The opening of borders in an increasingly globalized world facilitates the mobility of people and favors the migratory scenario. One of the main reasons for this mobility corresponds to socioeconomic reasons that drive the economically active population to seek better job opportunities and the generation of employment and income to promote their well-being and that of their family. Thus, associated with labor reasons, a great concern that arises when dealing with human mobility is access to the benefits and services of social security systems. Faced with this scenario, this article discusses the migratory phenomenon in Brazil and the problems associated with the guarantee of the fundamental socio-right to social security for the migrant population through an exploratory and descriptive research, using qualitative and quantitative variables in order to argue on how the architecture of social security could face these problems of the globalized world.