South Korea called on the U.N. Security Council (UNSC) to tackle illicit cyber operations in connection with global threats like nuclear proliferation, drawing attention to North Korea’s rampant cybercrime activities to fund its nuclear program.

“Through digital means, the DPRK systematically evades the very sanctions adopted by this Council and challenges the international nonproliferation regime that is integral to the Council’s work,” ROK foreign minister Cho Tae-yul said during the Security Council’s second-ever open debate on cybersecurity on Thursday.