[bostik]

Sure, the root cause was incompetence when closing down accounts but that is not the problem.

The real problem manifested in human blindly accepting what the computer told them. If there is no reason, or even NEED to apply critical thinking, why is there a human involved at all? This is not an indictment of automation over human labour. I would rather that humans are in the loop precisely because they have the ability to spot these kinds of errors - and help to correct them. Computers are good at repeating mundane tasks. Humans are not. We should be making most of their distinct abilities, not molding the two into same form.

Now, Temporal rightly pointed out that this might have been a case of attempted fraud. But if you are trying to spot fraud, spotting anomalies and being critical on what you accept as objective truth should be on the top of your mental map.