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Ukraine man sentenced to 70 months in U.S. ransomware case
The Record reports Artem Stryzhak, 36, of Ukraine, was sentenced to 70 months after pleading guilty to charges tied to Nefilim and Hive ransomware attacks on hospitals, governments and businesses.
A U.S. court sentenced Ukrainian national Artem Stryzhak, 36, to 70 months in prison after he pleaded guilty to charges tied to ransomware attacks on hospitals, government entities and businesses, The Record reported Tuesday1.
Stryzhak pleaded guilty in December 2025 to two counts of conspiracy to commit fraud, extortion and related activity in connection with computers, according to that account1. He was arrested in Spain in June 2024 and extradited the following April1.
The Record said Stryzhak was an affiliate of the Nefilim ransomware group while living in Barcelona and used Nefilim in 2021 against organizations in the United States, Canada and Australia1. It said he paid Nefilim administrators, including indicted co-conspirator Volodymyr Tymoshchuk, a 20 percent fee of ransoms from victims, then joined Hive from October 2021 to January 20231.
Assistant FBI Director Brett Leatherman said Stryzhak "worked with multiple ransomware groups to target U.S. businesses and hospitals," and that the groups caused more than $100 million in losses1. Prosecutors cited one incident in which a hospital could not accept new patients during the COVID-19 pandemic after a Hive attack, The Record said1.
The Record said Hive encrypted thousands of victims in 80 countries and that the FBI later disrupted the group1. Assistant Attorney General A. Tysen Duva said the sentence closed a years-long, multi-continent investigation1.
Prosecutors said they are still searching for Tymoshchuk, who The Record said is also accused of administering the LockerGoga and MegaCortex ransomware groups and has evaded capture1. U.S. Attorney Joseph Nocella Jr. said authorities remain determined to capture him1. The Justice Department previously offered an $11 million reward for information on Tymoshchuk and a $15 million reward for information on other Hive members, according to that report1.
