Ukrainian ransomware hacker sentenced, $11 million reward offered for co-conspirator

A Ukrainian national who participated in ransomware attacks targeting hospitals, government entities, law firms, and other businesses was sentenced to five years and 10 months in prison. Artem Stryzhak, 36, pleaded guilty in December 2025 to two counts of conspiracy to commit fraud, extortion, and related activity in connection with computers. He was arrested in Spain in June 2024 and extradited to the United States in April 2025.