On March 11, 2013, Thomas Donilon, President Obama’s national-security adviser, gave a speech at the Asia Society on Manhattan’s Upper East Side. Much of it was boilerplate: a recitation of the ...

In fact, however, the Chinese had been hacking, with growing profligacy, for more than a decade. A senior U.S. intelligence official had once muttered at an NSC meeting that at least the Russians ...