For what it’s worth I’ll stick my ha’pence worht of thought in here with a quote about the word ubuntu which gave Linux Ubuntu it’s name:
Ubuntu (Zulu/Xhosa pronunciation: [ùɓúntʼú]; English: /uˈbʊntuː/ oo-BUUN-too) or “uMunthu” (Chichewa) is a southern African ethic or humanist philosophy focusing on people’s allegiances and relations with each other. Some believe that ubuntu is a classical African philosophy or worldview[1] whereas others point out that the idea that ubuntu is a philosophy or worldview developed in written sources during the second half of the 1900s.[2] The word ubuntu has its origins in the Bantu languages of southern Africa.
I really do want all who use a Linux Distro, who have joined their Distro’s Forum/Community, and enjoy learning from the more experienced there, to feel quite safe as far as Malware, and Linux.
Don’t Login as / (root), or use the command ‘sudo’,… but ‘su’ …; ask questions in appropriate places, read comments from your Distro’s Developers concerning Software Updates, and just enjoy Linux, whatever its flavor. The main threat is you, there’s enough of a learning curve to worry about what is unlikely. Learn your stuff.