Google reveals its stealthy moves to keep Android phones free from malware

Way back when Android 4.2 Jelly Bean was released, Google added a feature called Verify Apps that sought to protect users who inadvertently may have downloaded a piece of malware and attempted to side-load it onto their phone. The service, which is enabled by default on all Android devices, scans apps that are installed from sources other than the Play Store, and warns the user if they may be potentially harmful.
It’s so silent and unobtrusive, most users don’t even know Verify Apps