flowerlad seems to have the position that only security bugs matter; other bugs can be dealt with. I disagree with that position - non-security bugs can also be devastating. Second, even if you accept the starting position, I disagree with the idea that re-writing C++ code in Rust will remove all the security bugs.

So there's two categories of "taking those precautions". One is "fix security bugs", which, yes, of course take those precautions.

But the second category of "taking those precautions" is "re-write the whole thing in Rust". That's much more questionable whether it's worth it. How much time and effort will the rewrite take? What else could those people do with that much time? How bad are the security holes? How bad will it be to introduce the new bugs? What fraction of security holes will be closed by the rewrite?

flowerlad's idea seems to be that, in light of this latest attack, it's worth going to any lengths to fix every security hole. I think that idea is mistaken.

And, which software are we talking about? The network stack? Excel? Everything ever written in C/C++? The trade-offs are different for each piece of software. And if the answer is "everything", that sounds like roughly a decade of work for the entire software engineering workforce. That seems totally unrealistic, even in light of this latest attack.

Look, the attack was huge. I'm not trying to minimize it at all. But it still isn't worth the measures that flowerlad proposes.