alt Hacker NewsThere's a subtlety that's missing here: if your threat model doesn't include the actors who can access those backdoors, then computer security isn't so bad these days.
That subtlety is important because it explains how the backdoors have snuck in — most people feel safe because they are not targeted, so there's no hue and cry.
The backdoors snuck in because literally everyone is being targeted. Few people ever see the impact of that themselves or understand the chain of events that brought those impacts about.