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Oleg Evgenievich Nefedov has been added to Europol’s ‘EU Most Wanted’ and Interpol’s ‘Red Notice’ lists. He is alleged to be one of the founders and leaders of ransomware group Black Basta. Researchers estimate that the Black Basta generated more $100 million in ransomware payments by the end of 2023. He is believed to be residing in the Russian Federation.