Russia Arrests Hackers Tied to Major U.S. Ransomware Attacks, Including Colonial Pipeline Disruption

WASHINGTON—The Russian government on Friday said it had arrested members of the prolific criminal ransomware group known as REvil that has been blamed for major attacks against U.S. business and critical infrastructure, disrupting its operations at the request of U.S. authorities.

Russia’s security service, the FSB, said in an online press release that it had halted REvil’s “illegal activities” and seized funds belonging to the group from more than two dozen residences in Moscow, St. Petersburg and elsewhere. REvil members were arrested in relation to money-laundering charges, the FSB said. It didn’t provide names of any of the suspects.