A representation of Bitcoin coin cryptocurrency is seen in this illustration from Sep. 10, 2025. [REUTERS/YONHAP]

Korea aims to tighten surveillance on cross-border cryptocurrency transactions in line with efforts to curb illegal activities, the Ministry of Finance and Economy said Tuesday.

Under revisions to the Foreign Exchange Transactions Act approved during a Cabinet meeting, cryptocurrency platform operators engaged in cross-border transfer services will be required to register with the Ministry of Finance and Economy.

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“Amid growing cross-border trading of virtual assets, illegal transactions aimed at evading foreign exchange regulations are also increasing,” the ministry said.