Recently a user on slashdot posted about this. I will copy and paste that here.
The policy says:
We collect non-personal data to make money from our free offerings so we can keep them free, including: Advertising ID associated with your device; Browsing and search history, including meta data; Internet service provider or mobile network you use to connect to our products, and Information regarding other applications you may have on your device and how they are used.
So what that is saying while they scan your computer for virus etc they can also log what your doing on the computer and then sell that to advertising companies. Once again it proves the saying “you are the product” when it comes to free but not open source software.