I saw this cartoon, which I think is great: Data Security. It’s from John Klossner, and it perfectly shows that humans are, and probably always will be, a weak link.
I look at this in two ways. First, we need to account for and accept that our users will make mistakes, so we need to have security in place, but also monitoring that detects issues. The second item is that this could be a privileged user, so the less we need privileged users to actually access and do things, as in manually changes or deployments, and the more we require them to “submit” changes that are audited, the better off we are.