On August 8, 2022, the U.S. Department of the Treasury’s Office of Foreign Assets Control (“OFAC”) sanctioned virtual currency mixing service Tornado Cash, which OFAC said has been used to launder billions of dollars in virtual currency, including $455 million stolen by the Lazarus Group, a Democratic People’s Republic of Korea (“DPRK”) state-sponsored hacking group that OFAC sanctioned in 2019. Though OFAC’s action marks the second instance it has sanctioned a virtual currency mixer—OFAC sanctioned Blender.io in May 2022—this is the first time that OFAC has designated a non-entity software protocol. Tornado Cash is a “smart contract” that allows users to anonymize the origins, destinations, and counterparties for virtual currency transactions.
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