A malware, named as XcodeGhost, was able to infect iOS apps and created a security breach. Applications were infected because of using modified version of Xcode by developers as they were convinced for using this version instead of the standard one.
Apple has removed the infected apps from the app store and no personal information theft is reported yet.
WeChat is one of the popular apps which got infected because of the malware. Developers have confirmed that its older version –the one released on 10th of September—was infected, although current version is clean.