John Khuu, a 29-year-old from San Francisco, was sentenced to 87 months in federal prison for laundering proceeds from MDMA sales on the dark web through Bitcoin. Khuu imported the drug from Germany and was arrested during Operation Crypto Runner, a multi-agency effort targeting crypto money laundering.

The crackdown has led to 21 other arrests associated with different cryptocurrency scams, highlighting an ongoing law enforcement focus. In 2024, the total amount laundered through cryptocurrency reached over 40 billion USD, indicating a growing trend in crypto-related financial crimes.