The most secure option would be not to carry a mobile phone at all. Otherwise, iOS is probably the most secure mobile operating system, simply based on the pric

The most secure option would be not to carry a mobile phone at all. Otherwise, iOS is probably the most secure mobile operating system, simply based on the price of remote exploits: a remote exploit for iOS is worth several times more ($500K-1M) than the equivalent one for Android ($100K-200K).