North Korea hacked him, so he took down its internet

How did one person bring down the Hermit Kingdom? In 2021, a hacker who goes by the handle 'P4x' became yet another victim of a North Korean hacking campaign that targeted Western security researchers. After a year of letting his resentment simmer, as he waited for the US government to respond, he decided to take matters into his own hands. In this interview, Andy Greenberg discovers the extraordinary revenge story of how P4x singlehandedly brought down the servers and routers that North Korea depended on.