[pheldagryph]

You're staking out some pretty tough ground, there. Human error can be unconscious or reflexive, and that type of UI element is sometimes barely a speedbump, cognitively.

Occasionally I reflexively click-through a confirmation dialogue box and regret it. I feel like I've been trained by the software industry for decades to bludgeon my way through these confirmations, many of which are unnecessary to begin with. I basically have muscle memory for it, the skids are greased for clicking-through. I know I'm not the only one.

So, I could see myself making this type of slip. It's really hard to know the balance between human and system error for this incident, but to me it looks like the system naively assumes a perfect human. Even if the incident turns out to have been an intentionally malicious act, the problem with the system would still remain.

[carlmr]

Agreed, click-through should be nigh impossible. You need to do something that deviates so much from the normal routine that you don't accidentally do it.

One way to do this is to let the operator do a simple task that can't be clicked through.