On the level of an Ethereum smart contract, stablecoin issuers can prohibit interactions with the Tornado Cash dApp. The 44 Tornado Cash addresses that were sanctioned by the Specially Designated Nationals and Blocked Persons (SDN) list maintained by the U.S. Office of Foreign Assets Control (OFAC) were linked to over 75,000 USD Coin stablecoin (USDC) on Monday, according to crypto data aggregator Dune Analytics. A decentralised application (dApp) called Tornado Cash is used to conceal the history of prior cryptocurrency transactions on the Ethereum blockchain.