North Korea has four contact points with the Internet and each of them runs through China. By way of contrast, the U.S. has 152,000.
The U.S. had identified North Korea as the place where the hacking of Sony originated. President Obama has promised a limited retaliation.
When North Korea attacked Sony Pictures, they made thousands of computers inoperable. They also stole a lot of personal data about Sony employees, and many Hollywood secrets. Ultimately, Sony had to take its complete network offline.
At the request of the U.S., China is currently investigating the issue about who was responsible behind the hacking into Sony's computers.
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Source: http://www.bloomberg.com/news/2014-12-22/north-korea-undergoing-internet-outage-network-researcher-says.html
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Graphics: Mine
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Keywords: Internet, North Korea, dark, offline, Sony