Comment by saghm

> Especially when you look at the malware and viruses that don't exist, because it's so protected.

There are fewer viruses on Linux than on Windows, despite being far more open. I imagine your response will be that there are a lot more iPhone users than Linux ones, but my point is that there are a lot more factors than treating "open or closed" as a binary, and at best you can make a principled hypothesis about why something doesn't exist. For all you know, maybe making it more open would allow security researchers to find and report more potential attack vectors; extra attention from being more widely used cuts both ways.