A handful of SDN-listed pools continue to have an “operator” permission. Of these, two belong to extremely old, now-unused variations of Tornado Cash. The remaining pools both have more recent, immutable variations, or were utilized so very little which they have been possible disregarded in the May well 2020 closing https://tiarashafiq.com/the-ultimate-guide-to-tornado-cash-secure-and-anonymous-blockchain-transactions/