The U.S. Office of Foreign Assets Control has added cryptomixer Blender Io to its list of entities subject to sanctions because of relations with North Korea.
The U.S. government linked the mixer to the laundering of cryptocurrency that was stolen in the Ronin Bridge hack.
The U.S. reported that North Koreans used Blender to steal $20.5 million.
“Today is the first time in history the Treasury Department has sanctioned a virtual currency mixer,” said Treasury Under Secretary for Counterterrorism and Financial Intelligence Brian E. Nelson.
Treasury said it will continue to investigate the use of mixers for illegal purposes and will consider the range of authority it has to regulate them.