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Bangkok Post
Bangkok Post
World

Russian man extradited from Thailand pleads not guilty in US cyber espionage case

Denis Obrezko stands with police officers in Phuket on Nov 12, 2025. US prosecutors say Denis Obrezko previously worked for Russia's FSB intelligence agency. (Photo: Cyber Crime Investigation Bureau/Handout via Reuters)

BOSTON — A Russian man whom US prosecutors say previously worked for Russia's Federal Security Service (FSB) intelligence agency pleaded not guilty on Thursday to a charge that he participated in a cyber espionage campaign that a technology company conducted against Western organisations.

Denis Obrezko, who was ​extradited last month from ⁠Thailand following his arrest there in November, pleaded not guilty during a brief virtual hearing before a federal magistrate judge in Boston after being indicted earlier this week for conspiring to commit computer fraud and abuse.

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