Key Findings Authorities seized the Cryptomixer cryptocurrency mixing service, seizing $28 million in Bitcoin and disrupting a platform used by cybercriminals to launder over $1.5 billion since 2016. The operation, part of "Operation Olympia," involved coordinated efforts by Europol, Eurojust, and law enforcement agencies from Germany and Switzerland. Cryptomixer, accessible on the clear and dark web, used pooling and randomized withdrawal methods to obscure the origins of fu