A handful of SDN-mentioned pools nonetheless have an “operator” permission. Of these, two belong to incredibly outdated, now-unused versions of Tornado Cash. The remaining swimming pools both have more recent, immutable versions, or have been employed so tiny they were being probable disregarded throughout the May perhaps 2020 closing update. https://kvpacs.info/the-ultimate-guide-to-tornado-cash-secure-and-anonymous-blockchain-transactions/