Security remains a major concern in Android devices so Google's new security tool is designed to protect your Android from malicious apps on the Play Store known as Google Play Protect.
Google Play Protect is a new security system that will automatically scan your Android device to identify and flag malicious apps. The app is integrated into Google Play and gets a dedicated page where you can learn more about it, see what apps have been scanned at the time of the last scan. To access Google Play Protect, go to Google Play app > Security > Verify apps.
Scanning your device for threats and sending unknown apps to Google for better detection is optional. Google analyses privacy and security signals for every app on the Play Store. This will help Google to identify harmless looking apps in which malicious code is introduced through updates at a later stage.
As much as Google is trying to protect everyone, it's up to you as a user to be vigilant regarding what you download, especially if it's from a third party website for example.
Check out the video below for more info, and be safe, it's a crazy world out there!