WeChat, Didi Kuaidi among dozens hit; breach of iOS platform is called unusual A number of popular Chinese mobile apps, including Tencent’s WeChat, were infected with malware by hackers targeting Apple’s iOS mobile platform. A number of populwith malware by hackers targeting Apple’s iOS mobile platform. BEIJING—Some of the most popular Chinese names in Apple Inc.’s App Store were found to be infected with malicious software in what is being described as a first-of-its-kind security breach, exposing a rare vulnerability in Apple’s mobile platform, according to multiple researchers. The applications were infected after software developers were lured into using an...