Cyberattacks from China Raise Sensitive Issues for U.S.

When the Obama administration circulated to the nation’s Internet providers last week a lengthy confidential list of computer addresses linked to a hacking group that has stolen terabytes of data from American corporations, it left out one crucial fact: that nearly every one of the digital addresses could be traced to the neighborhood in Shanghai that is headquarters to the Chinese military’s cybercommand. That deliberate omission underscored the heightened sensitivities inside the Obama administration over just how directly to confront China’s untested new leadership over the hacking issue, as the administration escalates demands that China halt the state-sponsored attacks that Beijing insists it is not mounting.