Since April 2020, French health data has been centralized within Microsoft as part of the “state of health emergency”. Some data is being transferred to the United States even though the European Court of Justice invalidated the “Privacy Shield” between Europe and the United States on July 16, 2020, on the grounds of an inadequate protection on American soil. On September 16, 2020, an unprecedented collective of 18 organizations and personalities filed a complaint in front of the Council of State to denounce this illegal transfer of personal and sensitive data. This lawsuit follows a first significant action initiated on May 28th.