reporter: while the trump team tries to strike a diplomatic deal with kim, new evidence the dictator is acting aggressively in cyberspace. the cyber security firm fireeye has a new report saying a shadowy network of hackers tried to steel over a billion dplars bank from banks around the world.oll from from banks around the world. fireeye says it s likely kim s hackers have successfully stolen over $100 million over the past four years. experts say this is likely the work of an elite hacking unit called bureau 121 from north korea s top intelligence agency. they attack banks and financial institutions, infrastructure, nuclear power plants in south korea as an example. they are very very, very good. reporter: analysts say kim jong-un will likely have his hackers move aggressively against banks and the u.s. and its allies and they ll probably target cryptocurrencies like
taxpayer dollars. thanks. the national security agency, pled guilty to violating the espionage act, charged with working at home without authorization on sensitive hacking tools, this employee worked with the developer and the agency s very elite hacking unit using antivirus software from a russian firm. this is obviously a major security breach, tipping off the nsa. wonder if they got anything after this. the world debate how to respond to north korean dictator kim jung un s latest icbm test so what choices does donald trump have. as the nation s top military leaders meet to come up with ways to improve readiness of our men and women in uniform, commandant of the marine corps general robert mueller standing by, good to see you, we are with you in a minute. just serve classy snacks and be a gracious host,
way they have at the same time around the precipice of building an advanced nuclear capability. translator: the cyber war has started and no other country can attack north korea because there is no point. reporter: jang is a former colonel who deflected before kim jong-un came to power. he worked side by side with the country s elite hacking unit, the notorious bureau 121. translator: only the very brightest students get to become hackers. they learn everything about the internet and then they work in the cyber research center which is directly controlled by the government. these hackers are all soldiers. when hay go to work in bureau 121, they re waeing uniforms? translator: yes. when they go from home to work, they wear their uniforms. they live in the military. they work with the military.
open and honest with customers and try to get the problems fixed as soon as possible. they might have a problem in the short-term at least with brand loyalty, i think. thanks so much. a secret within a secret. we re going to take you inside edward snowden s nsa and the cloak and dagger details of an elite hacking unit. that s next.
and this nsa hacking unit targets potential terrorists and this is a gold mine. if i can own your computer, if i can gain access to it and gain a foot hold into it, now i have access to all of your secrets. reporter: we contacted the nsa for a response to the report. in a statement, the agency said, quote, tailored access operations is on the front lines to defend the nation and its allies. tao s work is in support of foreign intelligence collection. that is translated to saying that no americans inside the u.s. are targeted by this. so this is the group of nsa hackers that works with the cia and fbi to physically infiltrate some places? yes, they do. the magazine says they work with the cia and fbi to fly to some