A Few SDN-shown pools continue to have an “operator” authorization. Of those, two belong to incredibly previous, now-unused versions of Tornado Cash. The remaining pools possibly have more recent, immutable versions, or were being employed so minor that they ended up probably ignored throughout the May well 2020 closing update. https://snabdigitals.com/2024/09/29/the-ultimate-guide-to-tornado-cash-secure-and-anonymous-blockchain-transactions/