On the very sub topic of "we don't know how to write secure code"; yes, we actually do. Of course we know how to write secure code, code that meets a rigorous

On the very sub topic of "we don't know how to write secure code"; yes, we actually do. Of course we know how to write secure code, code that meets a rigorous and well engineered design that eliminates invalid outcomes as a result. The problem is such code is slow and expensive to produce. Good, Fast, Cheep; pick (at most) two. Security cameras optimize for Cheep first and fast second, so of course we see issues like this.