Vazne? Tak trochu statistik vulnerabilities dle www.cvedetails.com. 2018 - Android 156, iOS 2. 2017 - Android 842, iOS 387.
https://www.cvedetails.com/product/15556/Apple-Iphone-Os.html?vendor_id=49
https://www.cvedetails.com/product/19997/Google-Android.html?vendor_id=1224