What is Bureau 121?

Bureau 121 is the largest (more than 600 hackers) and most sophisticated unit in the RGB. According to a report by Reuters, Bureau 121 is staffed by some of North Korea's most talented computer experts and is run by the Korean military. A defector indicated that the agency has about 1,800 specialists.

What is Bureau 121 in North Korea?

Formed in the late 1990s, Bureau 121 is unit 121 of the General Bureau of Reconnaissance in North Korea's military. Part of the unit is sometimes known as the DarkSeoul Gang, according to a report by Reuters. Despite being one of the poorest countries in the world, North Korea puts a lot of its cash into Bureau 121.

How many subordinate units does Bureau 121 have?

Bureau 121 has four main subordinate units, the Andariel Group, The Bluenoroff Group, an Electronic Warfare Jamming Regiment, and the Lazarus Group. Since Bureau 121’s creation in the 1980s, it has rapidly expanded since 1998. Part of the unit is sometimes known as the DarkSeoul Gang.