The US Department of the Treasury has announced sanctions against the virtual currency mixer Tornado Cash, which it claims has helped launder more than $455m for the Lazarus Group, a hacking organization associated with the North Korean government.
The sanctions prohibit Americans from using the mixer and freeze any of its US assets.
The Lazarus Group – a North Korean state-sponsored hacking group – is under US sanctions and has been responsible for several significant data breaches, including one against Sony Pictures in 2014.
A United Nations panel that monitors sanctions on North Korea has accused Pyongyang of using stolen funds to support its nuclear and ballistic missile programs to circumvent sanctions.