Do note that taking remarks from other sources[1] without stating that you are paraphrasing can be considered against the rules @crewdede. The takedown that you refer to was reported at least somewhere in the beginning of April[2] while ChipMixer went down around 15th of March[3]. Generally these kind of operations takes years of research and gathering evidences, especially when we are dealing with multiple countries, let alone the effort that is the cooperation with multiple national and international agencies to go after each individual. My guess is that this operation was already being planned years ago and it was just a matter of timing to happen after ChipMixer went down.

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[1]https://thehackernews.com/2023/04/fbi-cracks-down-on-genesis-market-119.html
[2][url]https://bitcointalk.org/index.php?topic=1935098.msg61916953#msg61916953]https://techcrunch.com/2023/04/05/fbi-genesis-market-seized-stolen-logins[/url9
[3][url]https://bitcointalk.org/index.php?topic=1935098.msg61916953#msg61916953