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Same SIM replacement, different scenes: temperature gap among South Korea\'s three telecoms

All three of South Korea’s mobile carriers have moved to replace SIM cards over the past year, but market reactions have diverged. SK Telecom faced confusion and shortages after news of SIM hacking and the leakage of information linked to 23 million subscribers, driving a surge in demand. KT and LG Uplus carried out replacement more quietly. The industry attributes the gap to differences in incident nature, user psychology and response strategies, while noting trust recovery remains a task.