Report: China renews hacking attacks despite Obama administration's warnings

The report comes after the president's national security adviser, Tom Donilon, in March for the first time publicly called on China to stop hackers' activities, which he said posed a "growing challenge” to bilateral relations.

“From the president on down, this has become a key point of concern and discussion with China at all levels of our governments,” Donilon said in a speech to the Asia Society on "The United States and the Asia-Pacific in 2013.” 

Earlier this month, the Pentagon followed up by directly accusing China of using cyberattacks against U.S. government and military contractors in its annual report to Congress on China's military capabilities.

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