The Brief: Someone hacked 50,000 printers worldwide, causing them to print out a message telling people to subscribe to PewDiePie.

DEEP DIVE
The hacker, a PewDiePie fan, used the hack to encourage people to subscribe to the YouTuber. This comes as PewDiePie and T-Series are neck and neck to be the most-subscribed-to channel on the platform.
@pewdiepie this just came through the ticket printer for the police station next door #savepewdiepie pic.twitter.com/7cGX3VmUIt
— Big D (the D is for Determination) (@TFGHighlights) November 27, 2018
In a video, PewDiePie reacted to the hack, clarifying that he had nothing to do with it and expressing his amusement.
The hacker, who goes by the username “Hacker Giraffe,” posted a Twitter thread explaining their process and motivations. They claimed to have found over 800,000 vulnerable printers before choosing 50,000 to hack. Hacker Giraffe explained their methods in detail, potentially laying out plans for future hacking while also raising awareness of a major oversight in printer security and privacy.
https://twitter.com/HackerGiraffe/status/1068714506770149376