A few SDN-stated pools nonetheless have an “operator” authorization. Of those, two belong to quite old, now-unused variations of Tornado Cash. The remaining pools both have newer, immutable variations, or were utilized so very little which they ended up most likely disregarded throughout the Might 2020 remaining update. 0x84443CFd09A48AF6eF360C6976C5392aC5023a1F Description: https://myjoincoin.info/2024/09/29/the-role-of-tornado-cash-in-protecting-blockchain-privacy/