Open systems are almost always open to bad guys. Only limitation (a rigorously implemented “sandbox mode“) adds value to your digital life. Openness is only needed if smartphones are designed to be play stations.
It’s the job of manufacturers to offer security.
Think of it like this:
You buy a car. Then you have to visit a market for accessories to separately buy the safety belts. Nobody would accept that.
Again it turns out that running iOS is the best way to stay secure.
Here is the latest analysis of Fraunhofer SIT …
Insecurity of Security Applications
If you want to keep a secret, you must also hide it from yourself.
Thanks for taking your time.