A 29-year-old developer suspected of being involved in the sanctioned Tornado Cash protocol was arrested in Amsterdam on Friday, according to a release from the Dutch Fiscal Information and Investigation Service (FIOD). FIOD began its investigation in June, and multiple arrests are not ruled out. The investigation, led by the prosecutor's office, involves serious fraud, environmental crime and asset forfeiture. Foresight News previously reported that Tornado Cash was included in the OFAC sanctions list by the United States.