What we know about North Korea’s cyberarmy

The attack on Sony Pictures has put North Korea’s cyberwarfare program in the spotlight. Like most of the internal workings of the country, not much is known but snippets of information have come out over the years, often through defectors and intelligence leaks.

Here’s a summary of what we know:

The Cyberunits

North Korea’s governing structure is split between the Workers’ Party of Korea (WPK) and the National Defense Commission (NDC).

North Korea’s main cyberoperations run under the Reconnaissance General Bureau (RGB), which itself falls under the Ministry of People’s Armed Forces that is in turn part of the NDC. The RGB has been operational for years in traditional espionage and clandestine operations and formed two cyberdivisions several years ago called Unit 121 and Office 91.

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