With certain exceptions, most iOS-focused malware targets jailbroken devices whose compromised security makes them easy prey. However, there's been concerns that a recent strain of malware, YiSpecter, can attack even 'pure' devices running stock iOS. Do you have to worry about catching a bug online and losing control over your device? Probably not, if you ask Apple. In a statement to The Loop, the company notes that it not only fixed the vulnerability with iOS 8.4, but blocked the apps handing out the offending code. The victims downloaded apps from "untrusted sources" (that is, outside of the App Store) Cupertino adds. In short, Apple believes this is a non-issue as long as you install updates and stay cautious -- and given that more than half of its users are already running iOS 9, it might be right.