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Which Desktop / Window Manager is most secure?
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this post was submitted on 24 Nov 2023
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All else being equal, less code and less dependencies is safer. The bigger the application and the more it tries to do, the larger its attack surface.
(Again, all else being equal. DWM is probably smaller than Weston, but Weston doesn't let just any old process log keypresses or take screenshots, so probably at least arguable to say that Weston is (qualifier, handwave, condition, clarification) "safer.")
well, a standalone WM will usually have less code than your usual DEs, but they also can be less secure in the sense that they might not come eith built-in security features. if your screenlock is buggy (it crashes or it lets you use WM shortcut key combinations or something), that can be a problem. or other stuff regarding saved passwords and keys etc must also be done by hand then usually and depending on if you know ehat you are doing either it works well or it is less secure than a built-in feature of your DE.
also, even though you are right that bigger applications potentially have more attack surface in general, the big DEs like KDE Plasma and GNOME might be (correct me if i am wrong) tested for security more than smaller standalone WMs. but i still tend to feel "safer" when i am in control of everyrhing and the DE doesn't do all kinds of things automatically in the background.