> To their great dismay, the engineer in Australia could not open the safe because the combination was stored in the now-offline password manager.

Classic.

In my first job I worked on ATM software, and we had a big basement room full of ATMs for test purposes. The part the money is stored in is a modified safe, usually with a traditional dial lock. On the inside of one of them I saw the instructions on how to change the combination. The final instruction was: "Write down the combination and store it safely", then printed in bold: "Not inside the safe!"

> It took an additional hour for the team to realize that the green light on the smart card reader did not, in fact, indicate that the card had been inserted correctly. When the engineers flipped the card over, the service restarted and the outage ended.

awesome !

That's a wonderful read, thanks for that.