You are talking about unrelated statistics out of context.
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No, the table does not say that at all. The table says that around 70% of web malware was encountered by a device with an Android user agent. And around 25% of web malware was enountered by a device with an iOS user agent. And around 3% of web malware was enountered by Windows Phone.
I am only casually browsing and replying while doing something else so you are right in one thing here which I overlooked in my haste: iOS users' encounters are much higher than what I wrote because I didn't sum iPhones+iPads+iPods, thanks for pointing that out!
When you compare that to the mobile OS web usage share, you get the conclusion that you are more likely to encounter web malware on an Android or Windows Phone device than an iOS device.
http://www.netmarketshare.com/operating-system-market-share.aspx?qprid=8&qpcustomd=1
Nope. Your conclusion is simply false based on this data. iOS users surf the web MORE and encounter LESS web malware than Android users.
So where does in that table of yours say that those are the data for the whole world and not just for the US? From both the iOS and Mac O.S. shares data I think I am safe to say that they refer to the US ONLY so it's you who "are talking about unrelated statistics out of context".