Illustration by Alex Castro / The Verge

The US Department of the Treasury has added the Tornado Cash crypto mixer to a list of sanctioned organizations, barring all US citizens from interacting with it and requiring that US assets belonging to Tornado Cash be reported to the Office of Foreign Assets Control.

The announcement was made on Monday morning by the Treasury in a press release that cited Tornado Cash’s role in laundering cryptocurrency stolen in major hacks, especially those linked to North Korean hacking groups. In March, $625 million was stolen from the blockchain behind the Axie Infinity crypto game and laundered through Tornado Cash — a heist that the FBI has attributed to the North Korea-based Lazarus Group.

The dramatic move from the Treasury is the latest…

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