Former intelligence officer Edward Snowden, who disclosed secrets of the American National Security Agency (NSA) and has since been living in exile, has called for support for the legal fund created for the defense of Tornado Cash founders Roman Semenov and Alexey Pertsev. Meanwhile, current data shows that the donation campaign has raised over $350,000 so far. The US Treasury Department added Tornado Cash, a cryptocurrency mixing service that has been used to launder over $7 billion in cryptocurrency since its inception, to its sanctions list in August 2022.