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[EN] The BATtle of the Attack Detection ALgorithms (BATADAL) is the most recent competition on planning and management of water networks undertaken within the Water Distribution Systems Analysis Symposium. The goal of the battle was to compare the performance of algorithms for the detection of cyber-physical attacks, whose frequency has increased in the last few years along with the adoption of smart water technologies. The design challenge was set for the C-Town network, a real-world, medium-sized water distribution system operated through programmable logic controllers and a supervisory control and data acquisition (SCADA) system. Participants were provided with data sets containing (simulated) SCADA observations, and challenged to design an attack detection algorithm. The effectiveness of all submitted algorithms was evaluated in terms of time-to-detection and classification accuracy. Seven teams participated in the battle and proposed a variety of successful approaches leveraging data analysis, model-based detection mechanisms, and rule checking. Results were presented at the Water Distribution Systems Analysis Symposium (World Environmental and Water Resources Congress) in Sacramento, California on May 21¿25, 2017. This paper summarizes the BATADAL problem, proposed algorithms, results, and future research directions. ; Riccardo Taormina, Stefano Galelli, and Nils Ole Tippenhauer are supported by the National Research Foundation (NRF), Singapore, under its National Cybersecurity R&D Programme (Award No. NRF2014NCR-NCR001-40). Demetrios Eliades is supported by the European Union s Horizon 2020 research and innovation program under grant agreement No. 739551 (KIOS CoE). Mohsen Aghashahi and M. Katherine Banks are supported by Qatar National Research Fund (QNRF) under the grant NPRP8-1292-2-548. B. M. Brentan, Enrique Campbell, G. Lima, D. Manzi, D. Ayala-Cabrera, M. Herrera, I. Montalvo, J. Izquierdo, and E. Luvizotto Jr. are supported CAPES and CNPq founding agencies. The work of Marcio Giacomoni, ...