Google removed 7,00,000 apps  and 1,00,000 bad developers from the Play Store in 2017.

Google removed more than 7,00,000 apps that abused the Google Play policies and 1,00,000 bad developers from the Play Store in 2017.Potentially Harmful Applications (PHAs), malware that act as trojans to conduct SMS fraud, etc, were taken  down as well. This case Google used machine learning to detect abuse such as impersonation and inappropriate content or malware in apps on the play Store.Hence Google Play Protect was launch in 2017 as well, which has helped to reduce installation of such harmful apps by over 50 per cent .