XcodeGhost, an Xcode trojan, was published just 1 week after Schneier's post

To add context:

<Novel Malware XcodeGhost Modifies Xcode, Infects Apple iOS Apps and Hits App Store> http://researchcenter.paloaltonetworks.com/2015/09/novel-mal...

<Hack Brief: Malware Sneaks Into the Chinese iOS App Store> http://www.wired.com/2015/09/hack-brief-malware-sneaks-chine...

<How the CIA Might Target Apple's XCode> https://www.schneier.com/blog/archives/2015/03/how_the_cia_m...

Affected apps include:

- WeChat, messaging app, around 500-600 mil users.

- Railway 12306, the only official app for ordering Sinorail train tickets in China.

- Didi Taxi, Uber's main rival in China.

- AutoNavi, the largest map provider in China, serving Google/Bing/Apple maps.

- China Unicom customer service, 1 of the 2 major ISP in China.

And many others.