"no known breach or defect" Except for the many thousands that have been known, from every exploitable vulnerability that's allowed an iOS jailbreak to every s

"no known breach or defect" Except for the many thousands that have been known, from every exploitable vulnerability that's allowed an iOS jailbreak to every security fix in every patch in the nearly two decades of OS X (and System 7/9/etc before that). These types of things are fairly complex pieces of software. It doesn't matter if the software is ultimately compiled to hardware circuitry or executed by a CPU -- bugs come from complexity, not from the medium.