Here is Apple’s calculus: What fraction of unsigned app openings, across the entire world each and every day, are safe? If 99% of these events are unsafe, the

Here is Apple’s calculus: What fraction of unsigned app openings, across the entire world each and every day, are safe? If 99% of these events are unsafe, then such an experience seems warranted, given real malware and security threats. The question is, what is that fraction? Folks may say I want my computer to be “open” but do you want it open in the same way for your grandad and grandma?