|China, US trade charges on cyberattacks
The White House has said it has repeatedly raised concerns at the highest level with the Chinese government about cybertheft.
The comments came after a US-based computer security company accused a Chinese military unit of being behind a series of cyber attacks.
State Department spokeswoman Victoria Nuland said cybertheft was a "serious concern" that comes up "in virtually every meeting we have with Chinese officials" including "at the highest levels."
"We consider this kind of activity a threat not only to our national security but also to our economic interests and (we are) laying out our concerns specifically so that we can see if there's a path forward," she said, RTHK reports.
The computer company, Mandiant, said it had traced the attacks to a building in Shanghai, also home to a unit of the People's Liberation Army, alleged to be behind China's computer espionage effort.
Earlier, the defence ministry in Beijing said the PLA had never supported any kind of hacking activity.
"Not only are reports that China's army has been involved in hacking unprofessional, they do not fit with the facts," the ministry said in a statement.