When it comes to rule then Google Play store has some very strict rules that every developer needs to follow before getting its app registered for download out there. Your app will be kicked out from Google play if you don’t follow their guidelines.
But there are some guys who are expert in this field who can cheat even Google and successfully register fake and potentially harmful apps on Google Play store. When These harmful apps are downloaded by users on their phones which soon become a home of viruses.
But thanks to the Google security team that Google has one more layer of a security scan and it keeps cross-checking of apps for security concern. The apps which are reported as fake or harmful by them are removed immediately from the Play Store.
Sophos, an antivirus providing company, has freshly removed 22 fake apps from the Google Play Store which was severely harming users without even their knowledge. And the strange thing is that these apps had almost 2 million downloads. Their update has happened near Nov 25 period. Most of the apps that have been removed were reportedly linked to ad network named Andr/Clickr-ad