Shenyang, formerly romanized as Mukden, is the capital and largest city of Liaoning Province, as well as the largest city in Northeast China by urban population. According to the 2010 census, the city's urban area has 6,255,921 inhabitants, while the total population of the Shenyang municipality is up to 8,106,171. Currently holding sub-provincial administrative status, the city was once known as Shengjing or Fengtian Prefecture. In the 17th century, Shenyang was conquered by the Manchu people and briefly used as the capital of the Qing dynasty.Along with its nearby cities, Shenyang is an important industrial centre in China, and serves as the transportation and commercial hub of China's northeast—particularly with Japan, Russia, and Korea. A titan of heavy industry since the 1930s, and the spearhead of the Chinese central government's Northeast Area Revitalization Plan, the city has been diversifying its industry and now has a solid industrial foundation, a good land and air transport network, abundant natural resources, and a skilled workforce.The sub-provincial city region includes the nine metropolitan districts of Shenyang proper, the county-level city of Xinmin, and three counties of Liaozhong, Kangping and Faku. The Sony hack of 2014 was traced to IP addresses used by a group of North Korean businesses in Shenyang.