Samourai Wallet founders Keonne Rodriguez and William Lonergan Hill were arrested in April 2024 for allegedly operating an unlicensed money-transmitting business linked to their Bitcoin privacy wallet. The pair admitted to laundering over $100 million in criminal proceeds through the wallet's mixing service. The U.S. Department of Justice reported over $2 billion in transactions related to counter-terrorism financing. This case has intensified regulatory scrutiny on cryptocurrency privacy tools, prompting some services, such as Phoenix Wallet, to temporarily withdraw from U.S. markets. The arrests coincide with ongoing debates over Bitcoin ETF approvals, which continue to influence the regulatory environment for digital assets.