The U.S. Department of Justice said on Thursday that it had seized domain names associated with three cryptocurrency exchanges that were accused of facilitating illegal transactions worth more than $2.5 billion as part of a coordinated crackdown on Russian money laundering, according to a statement. The Justice Department worked with the Treasury Department, the Secret Service and international law enforcement partners to unveil the indictment against Russian citizen Sergey Ivanov, also known as "Taleon," who was accused of operating several money laundering companies that provided services to cybercriminals, including ransomware organizations and dark web drug traffickers.