Is synonymous using a Main subset on the Tornado Cash good contracts: the Tornado Cash swimming pools. The overwhelming majority of these contracts are immutable. That is definitely, they've no power to be up-to-date or taken out by any person. A whole listing of sanctioned, immutable Tornado Cash swimming pools https://sportkpc.com/tornado-cash-explained-how-it-ensures-unmatched-confidentiality-on-ethereum-and-bnb/