The public sanitation service (SIAAP) that manages wastewater for nine million people through 450km of pipes in and around Paris, said it suffered a cyber attack on 17 November 2023.
IT/OT teams are reported to have worked to secure industrial systems and close off all external connections in order to prevent the attack from spreading.
Officials said they had prioritised measures that allow them to maintain the continuity of the public sanitation service
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