The US Treasury Department is levying sanctions against Tornado Cash, a notorious cryptocurrency mixer that it says has been used by threat groups like ransomware gang Lazarus to launder stolen digital assets. According to the government agency, Tornado Cash has been used to launder more than $455 million stolen by the North Korean-supported Lazarus Group, including more than $96 million in Wrapped Bitcoin, Ethereum and other digital assets from blockchain startup Harmony’s Horizon Bridge service in June.

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