Abstract
Among the reforms announced by the European Commission headed by Juncker, we have often heard about the “Labour Mobility Package”. But what is it, exactly? Indeed, the Commission does not provide us with much information about it. In theory, the main objective of this measure is “promoting a more comprehensive and fairer internal market for mobile and migrant workers”. In reality, under the pretext of preventing “fraud and abuse”, the EC’s “hypotheses to review provisions” challenge the pillars of free movement of workers and the coordination of social security systems, undermining the foundations of the entire European project. It will be mobile and migrant workers, and their countries of origin, that will suffer the most serious consequences of this move.