Strategy Page says the Chinese are probing the South Korean Military's personal computers for any work related info:

January 7, 2008: South Korea is complaining openly of a Cyber War campaign, coming out of China, that seeks to gain access to PCs belonging to members of the South Korean armed forces. This is a targeted attack, using lists of email addresses harvested from military web sites and other sources. The intention appears to be to discover what military personnel have on their PCs, and take anything of interest. Japanese and Taiwanese military personnel have gotten into trouble recently for having unauthorized data (usually classified) on their PCs (usually in the form of taking work home). Apparently someone in China noticed this, and decided to test a new Cyber War tactic on the South Koreans.