Powerful cyber spy tool linked to US-led effort

A powerful cyberspying tool can tap into millions of computers worldwide through secretly installed malware, security researchers say, with many signs pointing to a US-led effort.

Japan sees 25 billion cyberattacks in 2014

More than 25 billion cyberattacks on the Japanese government and other bodies were logged in 2014, an agency said Tuesday, with 40 percent of them traced to China.

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