The U.S. Treasury's Office of Foreign Assets Control (OFAC) sanctioned six Ethereum addresses this week, linking them directly to money laundering operations run by the Sinaloa Cartel. The agency says the addresses were used to convert proceeds from drug sales into cryptocurrency, a move that underscores how deeply cartels have moved into digital assets.
Six addresses on the blacklist
OFAC added the six Ethereum wallets to its Specially Designated Nationals (SDN) list on Wednesday. That designation freezes any assets tied to those addresses held by U.S. persons or entities and makes it illegal for Americans to transact with them. The Treasury didn't name specific individuals or organizations behind the wallets, only that they are linked to the Sinaloa Cartel's money laundering apparatus.
From drug money to crypto
According to the agency, the cartel used these addresses as part of a pipeline that turned cash from drug trafficking into cryptocurrency — likely through a network of money changers, shell companies, or unregistered exchanges. Crypto's speed and pseudonymity make it attractive for moving proceeds across borders, and OFAC has been watching this channel closely. The six addresses represent a small but targeted piece of that effort.
What sanctions mean for these wallets
For anyone holding or trading with these addresses, the legal exposure is immediate. U.S. exchanges and financial institutions must block transactions involving them. Non-U.S. platforms that handle U.S. dollars or have U.S. customers also face risks if they don't screen properly. The addresses are now effectively cut off from the mainstream crypto economy — at least in jurisdictions that enforce OFAC's list.
The action follows a broader push by the Treasury to go after cartel crypto use. Earlier this year OFAC sanctioned a Mexican exchange operator accused of laundering money for the Jalisco New Generation Cartel. The six Ethereum addresses will stay on the SDN list until the Treasury removes them, which rarely happens without a change in ownership or a successful delisting petition.
