German authorities have seized 47 cryptocurrency exchanges alleged to have been used to launder stolen funds by ransomware groups. The exchanges did not require KYC, allowing customers to remain anonymous throughout their transactions.Websites for these exchanges now show notices announcing a law enforcement operation called “Operation Final Exchange”. The page announces to visitors “This was your final exchange!”, and in a letter addressed to “ransomware affiliates, botnet operators and darknet vendors”, warns that authorities are now working to trace the illicit users of the exchange.