A hack that affected News Corp, as well as several of its publications, has been linked to China. The cyberattack, which was discovered on Jan. 20, was disclosed in a Feb. 4 securities filing, according to the New York Times. Targets of the hack included the Wall Street Journal, News UK (publisher of the Times and the Sun) and the New York Post. The company said it does not believe that any financial or user data had been affected, and that the threat has been contained. After the hack was uncovered, News Corp enlisted digital security firm Mandiant to investigate...