Global Android potentially harmful app installs 2016-2018, by market segment
In 2018, potentially harmful app (PHAs) install rates from Google play increased to 0.04 percent, up from 0.02 in 2017. According to the source, this is largely due to the inclusion of click fraud as a PHA category. In total, 0.92 percent of app installs outside of Google Play were PHAs, down from 3.32 percent in 2016.