美国财政部调查加密平台涉伊朗制裁规避，执法重心转向“服务层”基础设施

Core Viewpoint - The U.S. Treasury is investigating whether cryptocurrency exchanges and related infrastructure are being used to help Iran evade sanctions, shifting focus from individual wallets to service-layer systems like exchanges, stablecoin channels, and liquidity hubs [1] Group 1: Regulatory Actions - The U.S. has imposed sanctions on cryptocurrency exchanges operating within Iran's financial system for the first time [1] - The Office of Foreign Assets Control (OFAC) of the U.S. Treasury has listed relevant platforms in the sanctions list [1] Group 2: Market Impact - Iran's annual cryptocurrency trading volume is estimated to be between $8 billion and $10 billion [1] - Regulatory authorities believe that the key to combating sanction evasion lies in cutting off liquidity and funding channels rather than targeting individual addresses [1]