A few SDN-listed swimming pools nevertheless have an “operator” authorization. Of such, two belong to very outdated, now-unused variations of Tornado Cash. The remaining pools either have more recent, immutable versions, or have been utilised so small they were being very likely neglected over the May well 2020 last update. https://v36652.com/how-tornado-cash-enhances-privacy-for-ethereum-and-bnb-transactions/