Most mobile devices have various layers of security and security vulnerabilities. Android has the most. Nathan Olivarez-Giles on Google’s attempts to improve the ‘toxic cesspool’ issue with updated features:
The benefits are largely only for people who use a phone or tablet running a newer version of the OS and restrict their app downloads to Google’s own Play store. The safest Android users are the small fraction — 4.6% — who run Android 6 Marshmallow.
Which are the most recent smartphones. Compare that to Apple customers where more than 80-percent run iOS 9.x.