Facing a sharp rise in unemployment since the economic crisis of 2008, Pôle emploi, the national employment agency, has made digital transformation one of its main levers for adapting to this mass management and implementing its strategic orientations: to differentiate and personalise the services offered to job seekers and businesses, to increase the means in favor of the public by having the most need, to create the conditions for the autonomy of the public least in difficulty. In 2018, the budget for IT and digital expenditures was €455 million and the Information Systems Directorate had 1,551 full-time equivalent employees. The Court’s investigations into the 2019, which the digital transformation initiated by Pôle emploi in 2015 has profoundly changed the nature and modalities of the service provided by the operator and is now one of its main strategic axes. If the transformation of the business lines and the organisation could have been initiated over a short period, the operator must now face major technical weaknesses.