In this paper, the author focuses her attention on the situation of workers in the on-demand economy. Firstly, she deals with problems of terminological nature. Secondly, she presents the justifi cation for protection for some categories of workers. Thirdly, the analysis of the status of ondemand workers is conducted from different points of view: proposal to introduce the intermediate category between employee and independent contractor, proposal to introduce an employment relationship as the default classification, a functional concept of the employer, the judgment of Employment Tribunal (London) in Aslam and Farrar and others, and A European agenda for the collaborative economy. Finally, the author considers the usefulness (in the on-demand economy) of some of the instruments introduced by the General Data Protection Regulation of 27 April 2016.