The cloud computing sector is concentrated in the hands of a few US Big Tech companies, led by Amazon. When one of them suffers a technical glitch, it resonates widely and serves as a reminder of just how dependent the internet is on them. 

What is cloud computing?

Cloud computing (also known as “cloud services”) is when companies source their computer power, storage and software tools from the data centres of providers, such as Amazon Web Services and Microsoft’s Azure, rather than operating their own servers.