Open source still has its security benefits. When an exploit is publicized, the "fix" for it can be highly scrutinized, and people can comment meaningfully on

Open source still has its security benefits. When an exploit is publicized, the "fix" for it can be highly scrutinized, and people can comment meaningfully on whether it actually fixes it, and can contribute their own. I remember looking at diffs and the accompanying analysis when heartbleed was out, and it was informative and reassuring. When an exploit in closed source software is publicized, we have to take their word for it that it gets fixed.