Bleepingcomputer Romanian Energy Provider Oltenia Hit by Gentlemen Ransomware Attack
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On December 26, 2025, Oltenia Energy Complex, Romania's largest coal-based energy producer, suffered a ransomware attack known as 'Gentlemen'. The attack disrupted the company's IT infrastructure, encrypting several documents and files, and rendering multiple IT applications temporarily unavailable, although it did not threaten the National Energy System's operation.
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