hey. like fiona said above use that, or look into a virus protection like, mcafee or Norton. these can then protect against multiple things and also can cover multiple devices.
Check out https://www.av-test.org to find the best anti-virus either free or nonfree which I suggest. there are apps like pcappdroid to track and block the connections made by the other apps in your device and prefer using open-source apps. Anyway since Google has access to everything 100% privacy is not possible.
