South Korean authorities have ordered website blocks on 27 unregistered cryptocurrency exchanges, including major global platforms KuCoin and MEXC. This enforcement action aims to protect investors and strengthen financial oversight by ensuring digital asset service providers comply with domestic regulations, specifically anti-money laundering and customer verification requirements. The move signals that international recognition does not exempt platforms from local laws. While website blocking restricts access through ordinary internet connections, it may push some traders toward alternative or less transparent methods. The decision highlights the growing challenge for international exchanges operating in markets with demanding compliance standards.