Nick Arnott couldn’t figure out recently why Apple kept rejecting an update to a mobile app his company developed.

It turned out the problem was a ghost in the machine.

His company, Possible Mobile, is well versed in the App Store submission rules and has built apps for JetBlue, Better Homes & Gardens and the Major Soccer League.

The rejection came after it was discovered in mid-September that thousands of apps in the App Store had been built with a counterfeit version of an Apple development tool, Xcode.

The fake version, dubbed XcodeGhost and probably developed in China, had been downloaded by many developers from third-party sources, apparently because getting the 4GB code from Apple took too long.

To read this article in full or to leave a comment, please click here