Talk about pushing to prod before a long vacation...this is from the security researcher Prepakis Georgios (@kernelstub), who's been quite open about hosting and administrating a Matrix chat platform for the TeamPCP supply chain hackers and an odd menagerie of cybercriminals and infosec professionals/feds for months now. Many of the people in that chat are also interacting with Kernelstub via the same or similar handles in public posts on X.
Kernelstub is a prolific and accomplished offensive security researcher/hacker who frequently finds 0days like local privilege escalation (LPE) vulnerabilities and often sells or just gives them to threat actors. I hope to have more to share about all this in the not too distant future, because the whole thing is one helluva story.