Strange anti-cloud emphasis
"In the meantime, UniSuper's woes remain a lesson for companies leaping cloudwards. Someone clicking the wrong button, a previously unknown bug, an unforeseen series of events, or a combination of all three could have dire consequences for a business."
There is absolutely no difference in this, between being on own estate or in the cloud. Either way, someone can goof up, or a natural disaster can happen, or a systems failure, and bad stuff occurs.
Like any sensible and well-prepared company, UniSuper's IT had mitigated against as much of the risk as humanly possible. Not only had they replicated across two regions, they were replicating to a second supplier. If they were using own estate, doubtless they would have done the same, with replication across two geographically well-separated data centres and use of a separate backup domain, which is exactly analoguous, except it would have involved a heck of a lot more CapEx and having to manage multiple redundant network links through different providers, to avoid a single point of failure between the sites.
And yet this is an excuse to bash cloud use? Weird.