[trklausss]

What do you mean, practices from safety-critical industries applied to security? Unpossible! (end /s)

For that you need regulation that enforces it. On a global scale it is pretty difficult, since it's a country-by-country thing... If you say e.g. for customers in the US, then US Congress needs to pass legislation on that. Trend is however to install backdoors everywhere, so good luck with that.