CoinDesk reported:
A possible explanation might be increasing regulatory attention to the crypto hacks and a number of high-profile enforcement cases, TRM Labs suggests. First of all, crypto exchanges are ramping up their KYC/AML policies, making it harder to cash out stolen coins. At the same time, the ETH mixing protocol Tornado Cash, which has been one the most popular money laundering tool for Ethereum so far, has been under the U.S. sanctions since August 2022, which automatically backlisted all Tornado-related funds for any regulated exchange.