“U.S. investigators believe hackers affiliated with the Chinese government are responsible for a cyber intrusion on an internal Federal Bureau of Investigation computer network that holds information related to some domestic surveillance orders,” the Wall Street Journal reports.“The scope and severity of the intrusion aren’t known, and the investigation is in its early stages, the people said. Any preliminary conclusions could change as investigators gather more information.”“If China is confirmed to be responsible for the breach, it would signal the latest intrusion by Beijing’s hackers of computer systems related to law-enforcement surveillance orders, which contain highly sensitive material.”