Romania’s Oltenia Energy Complex suffers major ransomware attack
ID: 3e9ef05e-351d-52dc-ae48-eb906889dc10
STIX ID: report--3e9ef05e-351d-52dc-ae48-eb906889dc10
Feed Name: Security Affairs
Threat Score
On December 26, 2025 the Oltenia Energy Complex—Romania’s largest coal-fired power producer—was hit by a 'Gentlemen' ransomware attack that encrypted files and disrupted key IT systems (ERP, document management, email, website); operations were partially affected but the national energy supply was reported as safe, affected systems were isolated and recovery from backups is underway while authorities investigate and no confirmed data leak has been announced.
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