Over the first two months of the year China's National Computer Network Emergency Response Coordination Center (CNCERT) detected 2,196 servers in the United States, which were controlling 1.29 million infected computers in mainland China, the cyber security agency told Xinhua on Sunday.
This makes the US "the top-ranking country" that hacked into Chinese computer networks, it stated.
A CNCERT report last month said over 2012 a total of 10.5 million infected computers were traced to control servers with American IPs. The agency said US hacks constituted 74 percent of all such cyber attacks on China, with South Korea and Germany following the ranking.
The Chinese Defense Ministry said that two major Chinese military websites, including that of the ministry itself, were subject to about 144,000 hacking attacks a month last year, almost two-thirds of which came from the United States.
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