How a mobile app firm found the XcodeGhost in the machine

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.