An unknown group of hackers or an individual managed to gain access to the GitHub account of the Gentoo Linux distribution on Thursday. Hackers replaced the original source code with a malicious one and replaced it with malicious ones. Developers of the Linux distribution warned users not to use code from its GitHub account, as some “unknown individuals” had gained its control on 28 June at 20:20 UTC and “modified the content of repositories as well as pages there” Gentoo assured its users that the incident did not affect any code hosted on its official website or the mirror download servers.
Source: https://thehackernews.com/2018/06/gentoo-linux-github.html