Blog Post
Not surprising really.
Smartphones are powerful computing devices. Then add in that people rely on mobile banking a lot now, it makes them a 'juicy' target so to speak.
The more people invest their life and activities into smart phones the more those devices will be targeted. By both cyber criminals and thieves on the streets.
Unsecured / public WiFi will always be a tropth for people running packet sniffer programs.
In the case of Android, the Android archictecture has a long chain which makes updating most Android phones impossible. Meaning they become permanent security risks within a year of purchase.
Also, the vetting of apps going into the Google Play Store is very weak. White hat researchers have shown repeatedly how easy it is to upload booby-trapped apps with viruses, trojans and redirect downloaders included in them.
Unlike Apple's IOS setup which pushes updates out globally to all supported models at the same time. Ease of use and things are kept up to date and secure. The IOS app store has tighter vetting too.