Ultimately ... good sense
Ultimately the "Cloud" is just someone else's servers they have to make a profit from.
You don't know what the security/privacy, backup or other arrangements are.
You might not know where they are.
You are at the mercy of your Internet connections.
Imagine a world were accountants think that it saves money to outsource IT as if it's a call centre (c.f. Banks, which is madness seeing as in reality IT is their core business) as well as the servers to run it.
Imagine there are eventually only four "cloud" providers, and maybe two ecosystems of software.
(c.f. Same false positive Virus warnings on hosted files/Websites. Two unconnected hosting companies in different countries).
The Hosting companies (aka Cloud) need to make profit. If you run your IT well then inherently cloud will cost more eventually than DIY (Connectivity costs + Hosting company profits). The Cloud does make sense for Web Sites, though if a high traffic site, perhaps co-location of your own server at a data centre is cheaper & better, more control). Really the Cloud makes no sense and is a backward step to 1960s & 1970s for stuff that should only be on your own LAN or own Corporate Network.
Good to see an article with some reality about Cloud.
If there is wide spread migration to Cloud of Banking, Billing, IT, etc, then one day a badly done patch will kill civilisation.
If no electronic transactions, no food. Riots & looting in less than 2 days.
Billing on Mobile will go down. So soon no calls.
Unless the "Cloud" ecosystem is fixed in less than 2 days, then you are looking at a cascade of failures ... no water, gas, electricity etc. Being able to buy & Sell and make calls (mobile or fixed) would be first to go.
How would you get cash from a Bank or Cash Machine?
How many people have Cheques or Cash, or will have in 5 years.
The Cloud hype has got to stop. Yes. it makes sense for minuscule to medium websites. For anything else it will eventually be a disaster of apocalyptic proportions.