The US OFAC has sanctioned a service that converts crypto transactions into anonymous transactions, and a developer has also been arrested. Regarding these actions, both the crypto community and Criticism from the developer community was loud. Community members say that sanctioning Tornado Cash will do nothing and that hackers will continue to use it, and that it will only make OFAC's desire to oppress the decentralized network more obvious. . In fact, hackers are still using Tornado Cash. Out of the roughly $7 million worth of ERC 20 tokens and stablecoins that went into the DAI Maker hack in August, 500k DAI tokens were seen sent to Tornado Cash. Certik, a blockchain security firm, said that the wallet address to which the DAI tokens were sent was the wallet address used when DAI Maker was hacked, so it can be said with certainty that it is the hacker's wallet address.