A security flaw in Apple’s mobile iOS operating system has made most iPhones and iPads vulnerable to cyber attacks by hackers seeking access to sensitive data and control of their devices. The flaw allows hackers to access devices by fooling users to download and install malicious iOS applications on their iPhone or iPad via tainted text messages, emails and Web links. The malicious iOS apps can then be used to replace legitimate apps, such as banking or social networking apps, that were installed through Apple’s official App Store through a technique that FireEye has dubbed “Masque Attack”
Source: https://thehackernews.com/2014/11/masque-attack-new-ios-vulnerability_10.html