Though no individual countries are named in the DSS report, China has been suspected in several highly-publicized cyber attacks on U.S. companies and government agencies and was named by House Intelligence Committee Chairman Rep. Mike Rogers (R-Mich.) as exercising an "intolerable level" of cyber espionage on U.S. targets.
"I don't believe that there is a precedent in history for such a massive and sustained intelligence effort by a government agency to blatantly steal commercial data and intellectual property," Rogers said earlier this month. Chinese officials have repeatedly denied the accusations.
The DSS said that since U.S. contractors will continue developing advanced technology for the U.S., they will continue to be the "primary target for foreign entities seeking to improve their country's abilities or to simply profit from pirating the technology."
"Entities that successfully acquire the technology will likely develop a competitive edge economically and militarily," the report concludes. "The pervasive threat to U.S. technology is likely to continue for the foreseeable future."