> Not all software is security relevant You're right, only software that has actual users cares about security. > I run a lot of large simulations. I do not c

> Not all software is security relevant You're right, only software that has actual users cares about security. > I run a lot of large simulations. I do not care at all if that software would crash on specially prepared inputs. But it's not the 50s anymore and digital simulation is a tiny fraction of the code ever written nowadays so it's not a very good argument. > I do care that it's as fast as possible. You don't realize it but it ruins your entire argument. If speed is all that matters for your use-case then: - there's no way you can use runtime bound-checks, and you unconditionally need the compiler to optimize as much as possible around UB, even if it breaks your program every once in a while. - you likely can't afford dynamic memory allocation, which makes the UAF/double free kind of bugs irrelevant. Not out of “good coding strategy” but because you never free in the first place… These are hypothesis that don't apply to software industry at large.