The U.S. Department of Justice is investigating allegations that Iran used Binance, the world's largest cryptocurrency exchange, to bypass U.S. sanctions. According to a Wall Street Journal report, the investigation centers on over $1 billion in suspicious transactions through Binance, potentially linked to Iranian-backed terrorist groups, including the Houthi rebels in Yemen. The probe follows an internal Binance investigation that was reportedly halted, raising concerns about compliance risks associated with the platform.