Data of North Korea's internet performance. (DynResearch/Twitter)

Dyn Research, a company that focuses on internet performance, tweeted, "After 24 hours of increased instability, North Korean national Internet has been down hard for more than 2 hours."

READ MORE: BREAKING: U.S. Links North Korea To Sony Hacks

Matthew Prince, the president of CloudFlare, a San Francisco based company, said that the Internet outage was "as if North Korea got erased from the global map of the Internet." Prince also noted that he isn't sure whether this is an attack or not. 

"If it is an attack, it's highly unlikely it's the United States. More likely it's a 15-year-old in a Guy Fawkes mask," Prince said.

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