A few SDN-stated pools even now have an “operator” permission. Of those, two belong to very outdated, now-unused versions of Tornado Cash. The remaining pools both have more recent, immutable variations, or ended up applied so little that they had been very likely forgotten throughout the Might 2020 ultimate update. https://beatskopfhorerschweiz.com/the-role-of-tornado-cash-in-protecting-blockchain-privacy/