Users of Apple’s iOS App Store, Mac App Store, iBooks shop and iTunes music and video marketplace were unable to download new material for more than 11 hours earlier this week due to a software fault at the company. Affecting users worldwide, the fault also meant that email and documents stored on the Apple iCloud facility were inaccessible for four hours. The problem was caused by Apple’s own engineers.
The BBC reports that an error in the company’s internal domain name system (DNS), which marries up domain names and IP addresses, was at the root of the issue which affected various services from about 9am GMT until 8pm GMT on Wednesday.
The cost of downtime is yet to be announced, but given that Apple’s online media stores generated $2.6bn in the last three months, it will likely be several million, if not in the tens of millions. That quarterly earnings figure represents $1.2m an hour.