Europol's European Cybercrime Center (EC3) and the Spanish National Police recently announced the arrests of two Ukrainian nationals in Madrid who allegedly sold cybercriminals access to 21,000 compromised servers in 80 countries, and laundered the proceeds of ransomware at a rate of about 10,000 Euros a day.

The EC3's yearlong Operation Ransom II led to the arrests of the two on July 9, 2013. One of them was apparently caught "red-handed," while running virtual machines and chatting online with other cybercriminals. Approximately 50,000 Euros were seized, along with several electronic devices and digital evidence.

"This Spanish National Police investigation was supported from the early stages by Europol specialists, who organized and hosted a coordination meeting in April 2013," Europol said in a statement. "Europol then facilitated the exchange of criminal intelligence with other EU Member States, delivered analytical reports, and supported the operation on the spot with a mobile office and technical advice."

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