China and the United States will set up a working group on cyber-security as the two sides moved to ease months of tensions and mutual accusations of hacking and Internet theft. Beijing and Washington have traded accusations in recent months of massive cyber intrusions. The United States says hacking attacks emanating from China have targeted U.S. government and corporate computer networks among others, stealing government and commercial data. China claims it is the victim of large-scale cyber attacks from the United States, though it has given few details. Wang repeated to Kerry the Chinese government's oft-stated position that it opposes any form of hacking.