North Korea's Internet Crashed After Potential Retaliation Hack

U.S. officials won't say whether the government was behind the apparent attack on the Asian country's cyber infrastructure.
2:28 | 12/23/14

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Transcript for North Korea's Internet Crashed After Potential Retaliation Hack
It's going happen. Turn now to the latest twist in the Sony hack attack. President Obama promised to respond at a time and place of the u.s.'s choosing, and north Korea's internet has crashed. Some fearing this may be the beginning of a cyber war. No one is talking. But for most of the day, north Korea was scrambling to fix their servers. This morning, North Korea back online. The internet coming back overnight just adds mysteriously as it went out Monday. Collapsing for nearly ten hours. Coming amid a war of words over the Sony cyber attack. If the U.S. Did this, they're clearly defining the parameters for this kind of activity. This could be devastating if it leads to an escalation for this type of warfare. Reporter: And blaming the hacking over the planned release of "The interview." You are entering into the most dangerous country on Earth. Reporter: President Obama warning there would be a response. But the state department neither confirming nor denying Monday that it's behind the North Korea outage. As we implement our responses, some may be seen, some not. Reporter: Hacking the system in a denial of service attack is not complicated because of the limited technology. Satellite photos show how little electricity runs through the hermit nation at night. China and South Korea, bright, North Korea, a black void from space. They have 1,024 to service the country. That compares to hundreds of millions for China and the United States. Reporter: Meanwhile, back in the United States, "The interview" is not coming to a theater near you. But there's a live stage Reading in New York. A two-hour production with an authentic script all in the name of the freedom of speech. Sony has not authorized that Reading. And Sony threatening to sue Twitter over tweets linked to their hacked information. And back to North Korea, the U.S. Is not talking. But in the past, many believe they hacked Iraq and Iran's systems and didn't take credit. One cyber security expert I spoke to said it could be the U.S. Or a 15-year-old. We don't know. Thanks very much. Now it call for calm and an

This transcript has been automatically generated and may not be 100% accurate.

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