A 2017 research report found that the most vulnerable smartphone users are the ones whose devices are most open to fraud and harassment. Cheaper, low-end devices are less secure to begin with, and they are also less often replaced than their more expensive counterparts made by. Apple and Google. At any given time there are millions of Android devices that are open to known exploits. Worse, the poorer population that owns these phones are more likely to use them as their sole means of accessing…