SEOUL (Reuters) - South Koreas communications regulator said on Saturday that personal information of more than 13 million subscribers of a popular online game of Nexon Korea Corp, a leading game developer in the country, had been leaked in a hacking attack. The Korea Communications Commission (KCC) said in a statement Nexon reported to the commission late Friday afternoon that the company on Thursday discovered the leakage of personal data of its online game Maple Storys 13.2 million subscribers. The information was leaked weeks before the unlisted companys planned initial public offering of its Japanese affiliate on the Tokyo Stock Exchange on December 14.