i am not saying something like this will always happen, but it can happen. No matter what kind of testing and QA you employ (and i bet it's gigantic in Apples c

i am not saying something like this will always happen, but it can happen. No matter what kind of testing and QA you employ (and i bet it's gigantic in Apples case), not having critical bugs in something as complex as an OS every few years is kind of impossible. Should it happen ? Obviously not. But even popular open source software used by millions and developed by hundreds is not free of issues like this, like Heartbleed showed.