The customer is paying for it either way. Do you want liability insurance on your critical software project? Sure! But it'll just balloon the already ridiculous costs and a fraction of that money will maybe be spent on educating the engineers and ensuring the system is secure.

On an individual level, expect to see this: "Our records indicate that you have previously committed (a minor, unrelated change) to a software repository that was later exploited, unfortunately we are not able to offer you a position at this time (due to insurance reasons)"