North Korea Hacked Him. So He Took Down Its Internet (2022) (wired.com)

This article was published in 2022.

Previous discussion (2022): https://news.ycombinator.com/item?id=30180566

Glad he didn't accidentally trigger a thermonuclear response.

(2022)

Related followup this month:

Vigilante Hacker Took Down North Korea's Internet. Now He's Taking Off His Mask

https://news.ycombinator.com/item?id=39930598

North Korea has the Internet?

I personally would have concerns that North Korea - or more precise its leader - could take such actions personally and could strike back in a more... ehm... "direct and personal" fashion...

> “As their routers fail, it would literally then be impossible for data to be routed into North Korea,” Ali says, describing the result as “effectively a total internet outage affecting the country.” (P4x notes that while his attacks at times disrupted all websites hosted in the country and access from abroad to any other internet services hosted there, they didn’t cut off North Koreans’ outbound access to the rest of the internet.)

If second part is true then it does not seem productive, sadly.