Microsoft are not even close to the only company this happens to. The problem is a human one - as people change positions within a company, or leave a company, responsibility for this kind of thing can fall through the cracks.
Happens all the time, even if ACME is employed, and it's unlikely to ever stop happening.
All I'm saying is, that downtime probably cost them a lot of money, and resulted from something that's extremely preventable. Even if it is a human problem, one would think they'd allocate the resources necessary to solve it.
Happens all the time, even if ACME is employed, and it's unlikely to ever stop happening.