But the additional cards may very well have been necessary to understand “there is something wrong with our usage of the cards, this error is not a one-off failure due to corrupted data or broken hardware or other problem local to the California card(s)”. Having multiple independent reproductions of an issue helps you narrow down what the commonalities are!
replyWell, it would have been necessary if they hadn't managed to find the employee in California who had the password for the California safe memorized.
replyThere are lots of alternative ways this could have played out. Yes.
replySorry, but someone happening to have memory of the combination can also not be considered an adequate solution.
replyHe clearly had the combination written down
replyThe text says "Fortunately, another colleague in California had memorized the combination to the on-site safe". You might think that's unlikely and he probably wrote it down, but it's not "clear" from the text.
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