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

http://researchcenter.paloaltonetworks.com/2015/09/novel-mal...

http://www.wired.com/2015/09/hack-brief-malware-sneaks-chine...

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.