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Alejandro Cáceres, the hacker who took down North Korea’s internet from his home: ‘My attack was a response to their attempt to spy on me’ (english.elpais.com)

submitted 4 months ago* (last edited 4 months ago) by andrade@infosec.pub to c/cybersecurity@infosec.pub

8 comments fedilink hide all child comments

(...) the internet went down across the country. A wave of cyberattacks left all systems on hold for more than seven days. First, the main national websites failed, from the official news site to the booking page of the national airline. Then, the Asian state’s connections with the rest of the world were interrupted. Emails could not be sent or received; there was no connection to cloud services. The blockade was complete.

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[–] catloaf@lemm.ee 42 points 4 months ago (1 children)

tl;dr: he DDoS'd all two of North Korea's routers

[–] Barbarian@sh.itjust.works 16 points 4 months ago* (last edited 4 months ago)

What normal people hear: "He took down the routers with some crazy complicated algorithms. He's Neo in the matrix."

What IT professionals hear: "He hired a bunch of people to keep sending spam letters to their tiny mailboxes until they were so stuffed that they couldn't receive any legitimate mail."

[–] Granite@lemmy.world 41 points 4 months ago

What did you do today? Destroyed the internet of an authoritarian regime, you?

[–] tal@lemmy.today 11 points 4 months ago* (last edited 4 months ago)

Unless things have changed, North Korea doesn't have a whole lot by way of Internet. I think they used to have two Class C netblocks, 256 IP addresses each.

kagis.

They're apparently up to four.

https://en.wikipedia.org/wiki/Internet_in_North_Korea

As of February 2023 North Korea has four IPv4 subnets, all announced by AS131279, named "Ryugyong-dong".[52] The subnets are:[53]

175.45.176.0/24 (175.45.176.0–255)

175.45.177.0/24 (175.45.177.0-255)

175.45.178.0/24 (175.45.178.0–255)

175.45.179.0/24 (175.45.179.0–255)

The regime doesn't like people having access to outside information.

[–] UndulyUnruly@lemmy.world 6 points 4 months ago

„We and our 846 partners

Au revoir!

[–] Hello_there@fedia.io 4 points 4 months ago

Thx op

[–] Etterra@lemmy.world 3 points 4 months ago

Florida Man Crashed Internet in All of North Korea