Editor Notes: Reconstructing the timeline of events: (1) Since the 2010s: The algorithm has been in use to detect errors and fraud in France’s welfare system. (2) 2014: One version of the algorithm scored single-parent families, particularly those recently divorced, and disabled individuals receiving the Allocation Adulte Handicapé (AAH) as higher risk. (3) 2020: A suspected update to the algorithm took place, though the CNAF has not publicly shared the source code of the current model. (4) October 15, 2024: A coalition of 15 human rights groups, including La Quadrature du Net and Amnesty International, filed a legal challenge in France’s top administrative court, arguing the algorithm discriminates against marginalized groups.