China strongly denies the allegations:
"Currency trading is among the financial networks targeted by hackers, Thompson said. An attack would be particularly damaging in light of the financial system’s troubled state, he said.
"He said electric utilities’ networks also have several points of weakness.
“We were provided alarming data on the vulnerability of our electrical grid in this country,” he said."
“Allegations that the Chinese government is behind cyber attacks against the U.S. computer networks are totally unwarranted and misleading for the America public,” Wang [Baodong, a spokesman for the Chinese Embassy in the U.S.] said in an e-mailed statement.
Wang said the Chinese government is “cracking down” on computer hacking and other cyber crimes.